Applied Mechanics


 

Applied Mechanics

The Applied Mechanics Group has a broad and diverse portfolio of research programmes. These include the development of novel experimental techniques for non-destructive evaluation of components and systems, ie digital holography, shearography, moiré interferometry, electronic speckle pattern interferometry (ESPI), and fringe projection. Applications range from profile measurement of aircraft structures to dynamic characterization of micro-scale components. Other experimental research work includes the characterisation of biomechanical systems such as tissue and bone, mechanobiology and nanobiomechanics, impact engineering and behaviour of materials such as shape memory alloys and metallic glasses. There are also on-going projects in cooperative weapon systems, acoustics and unmanned aircraft.

Research and development of nano- and micro-scale devices and systems in application fields such as biomedical, optical and power are actively pursued. Aspects such as design, fabrication process development, testing, performance evaluation and characterisation are studied.

Numerical simulation and analysis forms a major part of the research in the Group. Besides developing new and more powerful techniques in computational mechanics eg mesh-free methods, the Group is implementing advanced computational and other numerical techniques for important applications such as fracture and delamination in advanced fiber-reinforced composites, thin films and human anatomical systems.

 

Full-Time Staff

 
Dr CHAU Fook Siong
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-2224



Research Interests
Optical nondestructive evaluation, MEMS, MOEMS





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CHAU Fook Siong
Associate Professor
+65-6516-2224
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Dr CHENG Li
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6874-6888



Research Interests
Fracture and failure analysis; materials modeling





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CHENG Li
Associate Professor
+65-6874-6888
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Dr CHEW Chye Heng
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-2567



Research Interests
Sound & Vibration





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CHEW Chye Heng
Associate Professor
+65-6516-2567
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Dr KOH Soo Jin, Adrian
Assistant Professor

Department of Mechanical Engineering
National University of Singapore
Block EA, Level 07, Room 39
9 Engineering Drive 1
Singapore 117575
Contact : +65-6516-8023

Dr. Koh Soo Jin Adrian received his PhD degree in Mechanical Engineering and Integrative Sciences from the National University of Singapore in 2008. He is currently an Assistant Professor at the Department of Mechanical Engineering, National University of Singapore, and an Adjunct Scientist at A*STAR, Institute of High Performance Computing. He was a post-doctoral fellow at Harvard University, School of Engineering and Applied Sciences, between 2008 and 2010. His current research interest is in soft electroactive polymer systems, in particular, using soft materials like dielectric elastomers as artificial muscles for soft robots, and generators for motion-based energy harvesting. He is the recipient of the inaugural Philip Yeo Prize in 2007, which recognizes outstanding research performed by a graduate student or post-doctoral fellow in Singapore. In 2013, he was awarded the “Promising International Researcher Award” by the European Scientific Network for Artificial Muscles (ESNAM), for his contributions in the field of electroactive polymers.

Qualification
PhD.: National University of Singapore, Singapore; Mechanical Engineering & Integrative Sciences; 2008

M.Eng.: National University of Singapore, Singapore; Structural Engineering; 2003

B.Eng. (Hons): National University of Singapore, Singapore; Civil Engineering, graduated with 1st Class Honours; 2000

Modules Taught
ESP2106: Principles of Continua
ESP2109: Design Project 1 (Mechanics of Materials and Structural Dynamics)
ME2114: Combined Bending and Torsion
ESP3902: Major Design Project (Solar-Powered Unmanned Vehicle)

Research Interests
1. Soft Robotics
2. Energy Harvesting
3. Materials Research for Soft Active Systems
4. Applied Mechanics
a. Finite element code development for analysis and simulation of multi-physical systems.
b. Material models for amorphous and glassy polymers, with a view from micro-mechanics.
c. Multi-scale simulation of nano-carbons.

Publications
1. A. Choudhury, C. M. Wang, and S. J. A. Koh, Continuum Shell Model for Buckling of Armchair Carbon Nanotubes under Compression or Torsion, in-press at Int. J. Appl. Mech., 2013.

2. C. M. Wang, A. Choudhury, S. J. A. Koh and Y. Y. Zhang, in Modeling of Carbon Nanotubes, Graphene and Their Composites, Chapter 8, Molecular Dynamics Simulation and Continuum Shell Model for Buckling Analysis of Carbon Nanotubes, Springer, 2013.

3. C. Foo, S. J. A. Koh, C. Keplinger, R. Kaltseis, S. Bauer and Z. Suo, Performance of Dissipative Dielectric Elastomers. J. Appl. Phys. 111, 094107, 2012.

4. X. Zhao, S. J. A. Koh and Z. Suo, Nonequilibrium Thermodynamics of Dielectric Elastomers. Int. J. Appl. Mech. 3, 203–217, 2011.

5. X. Zhao, S. J. A. Koh and Z. Suo, Nonequilibrium Thermodynamics of Dielectric Elastomers. Int. J. Appl. Mech. 3, 203–217, 2011.

6. S. J. A. Koh, C. Keplinger, T. Li, S. Bauer and Z. Suo, Dielectric Elastomer Generators: How much energy can be converted? IEEE/ASME Trans. Mech. 16, 33–41, 2010.

7. S. J. A. Koh, X. Zhao and Z. Suo, Maximal energy that can be converted by a dielectric elastomer generator, Appl. Phys. Lett. 94, art. No. 262902, 2009.

8. S. J. A. Koh, Maximum Energy that can be Harvested from a Dielectric Elastomer Generator, in 2009 MRS Fall Proceedings, edited by Materials Research Society, vol. 1218E, 2009 MRS Fall Meeting (30 Nov – 4 Dec 2009, Boston, MA, USA).

9. S. J. A. Koh, X. Zhao and Z. Suo, Maximal energy that can be converted by a dielectric elastomer generator in WorldWide Electroactive Polymers Newsletter, vol. 11, no. 1, pp. 15, June 2009.

10. S. J. A. Koh and H. P. Lee, Effects of Cross-Sectional Shape and Temperature on Mechanical Behavior of Platinum Nanowires, Journal of Computational and Theoretical Nanoscience 5, 1–11, 2008.

11. S. J. A. Koh and H. P. Lee, Shock-Induced Localized Amorphization in Metallic Nanorods with Strain-Rate-Dependent Characteristics, Nano Lett. 6, 2260, 2006.

12. S. J. A. Koh and H. P. Lee, Molecular dynamics simulation of size and strain rate dependent mechanical response of FCC metallic nanowires, Nanotechnology 17, 3451, 2006.

13. S. J. A. Koh, H. P. Lee, C. Lu and Q. H. Cheng, Molecular dynamics simulation of solid platinum nanowire under uniaxial tensile strain: A study on temperature and strain rate effects, Phys. Rev. B 72, 085414, 2005.

14. S. J. A. Koh, M. Maalej and S. T. Quek, Damage quantification of flexurally loaded RC slab using frequency response data, Struct. Health. Mon. 3, 293-311, 2004.

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KOH Soo Jin, Adrian
Assistant Professor
+65-6516-8023
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Dr LEE Heow Pueh
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-2205
Fax: +65-6779-1459

My early works focused on the mechanics of robotic manipulators, mechanism designs, as well as the vibration of structural elements and the mechanics of ultrasonic motors. Notable contributions include the application of “Structural Intensity” for the vibration study to various aspects of engineering disciplines from fracture mechanics to biomechanics.

My more recent research focuses on Mechanics in Medicine where I have been working with clinical doctors from various disciplines. Another aspect of my current research is related to biofouling where I examine the effect of ultrasound on the biofouling of microalgaes and cyprids. I have a few patents based on my work in Mechanics in Medicine as well as Biofouling. I have more than 270 publications in peer review journals with a total of more than 2600 citations. My H factor is 25 and I have several funded research projects as PI or Co-PI with A*STAR, MOE, MOH, NMRC, NRF, SMA, SMART, PUB, TDSI and DSO.

Qualification
BA (1982), MA (1986) University of Cambridge
MEng (1987), National University of Singapore
MS (1987), PhD (1991) Stanford University

Modules Taught
EG1109 Statics and Mechanics of Materials
EG2401 Engineering Professionalism
ME4213 Vibration Theory and Applications
ME4106C Vehicle Dynamics

Research Interests
CURRENT RESEARCH PROJECTS

Rapid Detection of Food Borne Pathogens via Microfluidic Platform

Objective Assessment of the Effects of long-duration wearing of N95 and surgical facemasks on upper airway functions

Development of Membrane-less Technology for the Removal of Microalgae from Lakes and Ponds

Multi-layer functional composites for personal protection against improvised explosive devices (IDE)

Design-Simulate-Fabricate micro-/nan-fluidics for cell and biomolecule manipulation

Alternative access system with micro-to-nano scale structure: design, characterization and control -Exploration of Multi-stage Multi-scale Servo Mechanisms (MMSM)

CT Analysis of buttresses in the traumatised nose - A basis for decision making for early rhinoplasty and biomechanical study of nasal structural support

Objective assessment of facial deformity for surgical applications

Ducted Fan for Vertical Takeoff and Landing (VTOL) Unmanned Aerial Vehicle(UAV)

Analysis of Composite Damage and Repair


RECENTLY COMPLETED RESEARCH PROJECTS

A Multistage-Multiscale-Multidisciplinary (M3) Approach based on Integrated Acoustic Streaming, Dielectrophoresis and Microbiological Studies for Rapid Detection of Microbial Contamination in Water

A Safe and Effective Endoluminal Anchor and Delivery System for Gastro-Duodenal Sleeves

Assessment of Nasal Patency via Multiphysics Simulations - from Physics to Medicine

Exploratory study of the Impact of climate change on mucociliary functions as the first line of defence against air-borne infectious diseases

A new endoluminal device for duodenal exclusion in treatment of type 2 diabetes mellitis and obesity

Ballistic and blast modelling of human head with combat helmet DSO national laboratory

Assessment and improvement of flow pattern and chlorine concentration in service reservoirs

Publications
RECENT PUBLICATIONS (2009 ONWARDS):

AMITABHA, L, Y K J LIONG, D A K Chia, S J LEE, A Y T Lim, A Biswas and H P Lee, "Functional Compartmental Space: The Missing Link in the Pathogenesis of Carpal Tunnel Syndrome". Computer Methods in Biomechanics and Biomedical Engineering, Imaging and Visualization (accepted for publication).

Zhang, J., B C Khoo, C. P. Teo, N. Haja, T.K. Tham, L. Zhong and H P Lee, "On passive and active methods for enhancing water quality of a service reservoir". Journal of Hydraulic Engineering-ASCE, (accepted for publication).

LIONG, Y K J, L AMITABHA, S J LEE, D A K Chia, A Biswas and H P Lee, "Mid-motion deformation of median nerve during finger flexion: a new insight into the dynamic etiology of carpal tunnel syndrome". Hand Surgery, (accepted for publication).

HOU, X, S P Lim, H P Lee and C J Ong, "Development and Numerical Characterization of a New Standing Wave Ultrasonic Motor Operating in the 30-40 KHz Frequency Range". Ultrasonics, (accepted for publication).

ZHANG, J, B C Khoo, H P Lee, C.P. Teo, N. Haja and K.Q. Peng, "Numerical Simulation and Assessment of the Effects of Operation and Baffling on a Potable Water Service Reservoir". Journal of Environmental Engineering-ASCE, (accepted for publication).

ZHU, J, H P Lee, K M Lim, S J LEE, L S L TEO and D Y Wang, "Inspirational airflow patterns in deviated noses: a numerical study". Computer Methods in Biomechanics and Biomedical Engineering, (accepted for publication).

TRAN, T Q N, H P Lee and S P Lim, "Modelling porous structures by penalty approach in the extended finite element method". Computer Methods in Biomechanics and Biomedical Engineering, (accepted for publication).

Lee, H P, Revanth Reddy Garlapati,, F H V CHONG and D Y Wang, "Comparison Between Effects of Various Partial Inferior Turbinectomy options on Nasal Airflow - a Computer Simulation Study". Computer Methods in Biomechanics and Biomedical Engineering, 16, no. 1 (2013): 112-118.

DUMOND, J J, K Ansari, SY Yew, C Tan, J Y H Fuh, H P Lee and HY Low, "High resolution UV roll-to-roll nanoimprinting of resin moulds and subsequent replication via thermal nanoimprint lithography". NANOTECHNOLOGY, 23, no. 48 (2012): 485310.

Wang, D Y, H P Lee and B.R. Gordon, "Impacts of fluid dynamics simulation in study of nasal airflow physiology and pathophysiology in realistic human three dimensional nose models". Clinical and Experimental Otorhinolaryngology, 5, no. 4 (2012): 181-187.

SEOW, Y C, S P Lim and H P Lee, "Optofluidic variable-focus lenses for light manipulation". Lab on a Chip, 12, no. 19 (2012): 3810-3815.

TAN, L B, K M TSE, H P Lee, V B C Tan and S P Lim, "Performance of an Advanced Combat Helmet with Different Interior Cushioning Systems in". International Journal of Impact Engineering, 50 (2012): 99-112.

HOU, X, H P Lee, C J Ong and S P Lim, "Design and Finite Element Analysis of a New Stack Ultrasonic Motor Based on in-plane Mode". Smart Materials & Structures, 21, no. 11 (2012): 115002.

MUHAMMAD, F B H, H P Lee and S P Lim, "Effects of Shear and Surface Roughness on Reducing the Attachment of Oscillatoria sp. on Substrates". Water Environment Research, 84, no. 9 (2012): 744-752.

PAHALA, G J, Z. Tan, D.V. Le, H P Lee and B C Khoo, "Three-dimensional numerical simulation of human pulmonary cilia in the periciliary liquid layer by the immersed boundary method". Computers & Fluids, 67 (2012): 130-137.

ZHU, J, H P Lee, K M Lim, B.R. Gordon and D Y Wang, "Effect of Accessory Ostia on Maxillary Sinus Ventilation: a Computational Fluid Dynamics (CFD) Study". Respiratory Physiology & Neurobiology, 183, no. 2 (2012): 91-99

TSE, K M, R CHANG, H P Lee, S P Lim, S K Venkatesh and P HO, "A computational fluid dynamics study on geometrical influence of the aorta on haemodynamics". European Journal of Cardio-Thoracic Surgery, (2012).

ZHU, J, H P Lee, K M Lim, S J LEE, L S L TEO and D Y Wang, "Passive movement of human soft palate during respiration: a simulation of 3D fluid/structure interaction.". Journal of Biomechanics, 45, no. 11 (2012): 1992-2000.

CHEN, X, H P Lee, F H V CHONG and D Y Wang*, "Drug Delivery in a Nasal Cavity with Functional Endoscopic Sinus Surgery : A Computational Fluid Dynamics Study". Journal of Laryngology and Otology, 126, no. 5 (2012): 1-8, 487-94.

LEE, S J, H P Lee, K M TSE, EC Cheong and S P Lim, "Computer Aided Design (CAD) and Rapid Prototyping (RP) Assisted Contouring of Costal Cartilage Graft for Facial Reconstructive Surgery". Craniomaxillofacial Trauma & Reconstruction, 5, no. 2 (2012): 75-82.

GUO, S, H P Lee, S L-M TEO and B C Khoo, "Inhibition of barnacle cyprid settlement with low frequency and intensity ultrasound". Biofouling, 28, no. 2 (2012): 231-241

HARIKRISHNAN, N U, H DENY, L Y L Yung, M L Ng, H P Lee, B C Khoo and K M Lim, "Characterization and separation of Cryptosporidium and Giardia cells using on-chip dielectrophoresis". Biomicrofluidics, 6 (2012): 012805.

ZHANG, J, B C Khoo, H P Lee, C.P. Teo, N. Haja and K.Q. Peng, "Effects of baffle configurations on the performance of a potable water service reservoir". Journal of Environmental Engineering-ASCE, 138, no. 5 (2012): 578-587

TSE, K M, H P Lee, N Shabana, SC Loon, PG Watson and SYL Thean, "Do shapes and dimensions of scleral flap and sclerostomy influence aqueous outflow in trabeculectomy? A finite element simulation approach". British Journal of Ophthalmology, 96 (2012): 432-437.

GUO, S, H P Lee and B C Khoo, "effect of ultrasound on barnacle (Amphibalanus amphitrite) cyprid settlement". Journal of Experimental Marine Biology and Ecology, 409, no. 1-2 (2011): 253-258.

Lee, H P and H ZHUANG, "Biomechanical Study on the Edge Shapes for Penetrating Keratoplasty". Computer Methods in Biomechanics and Biomedical Engineering, 15, no. 10 (2011): 1071-1079.

Chen, X, H P Lee, D Y Wang and F H V CHONG, "Aerodynamic Characteristics inside the Rhinosinosal Cavity after Functional Endoscopic Sinus Surgery". American Journal of Rhinology & Allergy, 25, no. 6 (2011): 388-392

Lee, H P, DL Leong and C T HENG, "Characterization of Kidney Stones using Thermogravimetric Analysis with Electron Dispersive Spectroscopy". Urological Research, (2011).

Lee, H P and D Y Wang, "Objective Assessment of Increase in Breathing Resistance of N95 Respirators on Human Subjects". Annals of Occupational Hygiene, 55, no. 8 (2011): 917-21.

Lee, W.L., G J PAHALA, Z.J. Tan, D.V. Le, H P Lee and B C Khoo*, "Muco-ciliary transport: effect of mucus viscosity, cilia beat frequency and cilia density". Computers & Fluids, 49 (2011): 214-221.

SEOW, Y C, S P Lim and H P Lee, "Micro-light distribution system via optofluidic cascading prisms". Microfluidics and Nanofluidics, 11, no. 4 (2011): 451-458.

ZHANG, J, H P Lee, B C Khoo, C.P. Teo, N. Haja and K.Q. Peng, "Modeling and simulation of flow pattern, chlorine concentration and mean age distribution in a potable water service reservoir in Singapore". Journal of Environmental Engineering-ASCE, (2011): 575-584.

TSE, K M, PX Chiu, H P Lee and P HO, "Investigation of hemodynamics in the development of dissecting aneurysm within patient-specific dissecting aneurismal aortas using computational fluid dynamics (CFD) simulations". Journal of Biomechanics, 44, no. 5 (2011): 827-36.

GUO, S, H P Lee, KC Chaw, J Miklas, S L-M TEO, H D GARY, WR Birch and B C Khoo, "Effect of ultrasound on cyprids and juvenile barnacles". Biofouling, 27, no. 2 (2011):185-192

CHEN, X, H P Lee, F H V CHONG and D Y Wang, "Assessments of nasal bone fracture effects on nasal airflow:A computational fluid dynamics study". American Journal of Rhinology & Allergy, 25, no. 1 (2011): 39-43.

ZHU, J, H P Lee, K M Lim, S J LEE and D Y Wang, "Evaluation and comparison of nasal airway flow patterns among three subjects from Caucasian, Chinese and Indian ethnic groups using computational fluid dynamics simulation.". Respiratory Physiology & Neurobiology, 175, no. 1 (2011): 62-69.

CHEN, X, Y SUI, Y CHENG, H P Lee, P YU, S H Winoto and H T Low, "Mass transport in a microchannel enzyme reactor with a porous wall: Hydrodynamic modeling and applications". Biochemical Engineering Journal, 52 (2010): 227-235.

Cui, FS, H P Lee, C Lu and P Chai, "EFFECTS OF BALLOON LENGTH AND COMPLIANCE ON VASCULAR STENT EXPANSION". International Journal of Applied Mechanics, 2, no. 3 (2010): 681-697

CHEN, X, S LEONG, H P Lee, F H V CHONG and D Y Wang, "Aerodynamic Effects of Inferior Turbinate Surgery on Nasal Airflow". Rhinology, 48, no. 4 (2010): 1-6.

CHEN, X, H P Lee, F H V CHONG and D Y Wang, "A Computational Fluid Dynamics Model for Drug Delivery in a Nasal Cavity with Inferior Turbinate Hypertrophy". Journal of Aerosol Medicine and Pulmonary Drug Delivery, 23, no. 5 (2010): 329-338.

LIONG, Y K J, S J Lee and H P Lee, "Deformation of nasal septum during nasal trauma". Laryngoscope, 120, no. 10 (2010): 1931-1939.

Lee, H P and S.W. Gong, "Finite Element Analysis for the Evaluation of Protective Functions of Helmets against Ballistic Impact". Computer Methods in Biomechanics and Biomedical Engineering, 13, no. 5 (2010): 537-550.

Lee, H P and F Wang, "ASSESSMENT OF HEAD INJURY OF CHILDREN DUE TO GOLF BALL IMPACT". Computer Methods in Biomechanics and Biomedical Engineering, 13, no. 5 (2010): 523-535.

Lee, H P, "Newton's Laws and a dynamic force field analysis for analysing organizational changes". International Journal of Mechanical Engineering Education, 38, no. 4 (2010): 277-285.

CHEN, X, H P Lee, F H V CHONG and D Y Wang, "Numerical Simulation of the Effects of Inferior Turbinate Surgery on Nasal Airway Heating Capacity". American Journal of Rhinology & Allergy, 24 (2010): 118-112.

MUHAMMAD, F B H, H P Lee and S P Lim, "The variation of ice adhesion strength with substrate surface roughness". Measurement Science and Technology, 21, no. 7 (2010): 075701.

CHEN, X, Y Shi, H P Lee, H BAI, P Yu, S H Winoto and H T Low, "Mass transport in a microchannel bioreactor with a porous wall". Journal of Biomechanical Engineering-Transactions of the Asme, 132 (2010): 1-12.

SEOW, Y C, S P Lim, B C Khoo and H P Lee, "An optofluidic refractive index sensor based on partial refraction". Sensors and Actuators B-Chemical, 147, no. 2 (2010): 607-611.

Lee, S J, Y K J LIONG, K M TSE and H P Lee, "Biomechanics of the Deformity of Septal L-struts". Laryngoscope, 120, no. 8 (2010): 1508-1515-0.

Blunt, S.B. and H P Lee, "Can traditional "cupping" treatment cause a stroke?". Medical Hypotheses, 74, no. 5 (2010): 945-949.

Leong, S, X CHEN, H P Lee and D Y Wang, "A review of the implications of computational fluid dynamic studies on nasal airflow and physiology". Rhinology, 48 (2010): 139-145.

CHEN, X, H P Lee, F H V CHONG and D Y Wang, "Impact of inferior turbinate hypertrophy on the aerodynamic pattern and physiological functions of the turbulent airflow - a CFD simulation model". Rhinology, 48 (2010): 163-168.

Pan, LS, YW Zhang and H P Lee, "Effects of crystal orientations of the facets on the structural stability of metallic Ni nanorods". Journal of Nanoparticle Research, 12, no. 3 (2010): 795-800.

NGO, Y.S. R and H P Lee, "Fabrication of Patient Specific Fasciaform Molds for Formaldehyde Fasciaform Grafting Tympanoplasty". Technology and Health Care, 17, no. 5-6 (2009): 411-418.

REVANTH, R G, H P Lee, F H V CHONG and D Y Wang, "Indicators for the correct usage of intranasal medications - A computational fluid dynamics study". Laryngoscope, 119, no. 10 (2009): 1975-1982.

SEOW, Y C, S P Lim and H P Lee, "Tunable optofluidic switch via hydrodynamic control of laminar flow rate". APPLIED PHYSICS LETTERS, 95, no. 11 (2009): 114105

Lee, H P, R G REVANTH, F H V CHONG and D Y Wang, "Effects of septal perforation on nasal airflow: computer simulation study". Journal of Laryngology and Otology, 24 (2009):1-7.

CHEN, X, H P Lee, F H V CHONG and D Y Wang, "Assessment of Septal Deviation Effects on Nasal Air Flow - A Computational Fluid Dynamics Model". Laryngoscope, 119 (2009): 1730-1736.

ZHUANG, H, S P Lim and H P Lee, "Effects of compressional waves on the response of quartz crystal microbalance in contact with silicone oil droplets". Journal of Applied Physics, 105, no. 11 (2009): 114909.

Lu, Pin and H P Lee, "A treatment for the study of dynamic instabilities of fluid-conveying pipes". Mechanics Research Communications, 36 (2009): 742-746.

Pei, QX, C Lu, H P Lee and Y W Zhang, "Study of Materials Deformation in Nanometric Cutting by Large-scale Molecular Dynamics Simulations". Nanoscale Research Letters, 4, no. 5 (2009): 444-451

Lee, H P, H J POH, F H V CHONG and D Y Wang*, "Changes of airflow pattern in inferior turbinate hypertrophy - a computational fluid dynamics model". American Journal of Rhinology & Allergy, 23, no. 2 (2009): 153-158.

ZHOU, R, A Y C Nee and H P Lee, "The Performance of Ant Colony Optimization Algorithm in Dynamic Job Shop Scheduling Problems". International Journal of Production Research, 47, no. 11 (2009): 2903-2920.


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LEE Heow Pueh
Associate Professor
+65-6516-2205
Fax: +65-6779-1459
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Dr LENG Gerard
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-6548



Qualification
BS, MS, PhD UIUC

Research Interests
Dynamics, Guidance and Control, Flight Vehicles
Distributed autonomous systems




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LENG Gerard
Associate Professor
+65-6516-6548
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Dr LIM Chwee Teck (林水德)
Professor

Department of Bioengineering & Department of Mechanical Engineering
Principal Investigator, Mechanobiology Institute
Faculty Fellow, Singapore-MIT Alliance for Research & Technology (SMART)
National University of Singapore
9 Engineering Drive 1
Singapore 117576
Contact : +65-6516-7801

Prof Lim currently holds joint appointments at both the Departments of Bioengineering and Mechanical Engineering at the National University of Singapore. He is also a Principal Investigator at the Mechanobiology Institute as well as a Fellow of the Singapore-MIT Alliance. He is founding member of both the Division of Bioengineering and the university's Nanoscience and Nanotechnology Initiative.

Prof Lim heads the Nano Biomechanics Lab which conducts basic and applied research in cell and molecular biomechanics, mechanobiology of human diseases such as malaria and cancer as well as development of microfluidic biochips for the detection and diagnosis of such diseases. In particular, he and his team has recently invented a microfluidic biochip which can detect, isolate and retrieve viable rare circulating cancer cells from patient's blood and has potential applications for detection, diagnosis and prognosis. It has since won six research awards and has been commercialized. It has also received worldwide attention and is now being tested in hospitals and cancer centers both locally and abroad.

Prof Lim has authored more than 200 journal papers (including 30 invited/review articles and 12 ISI highly cited papers), 20 book chapters and delivered more than 200 plenary/keynote/invited talks. He is currently on the editorial boards of 11 international journals. Prof Lim is also an elected Council Member of the World Council for Biomechanics. He co-founded 3 start-up companies that exploit inventions that he has developed in his lab.

Prof Lim has won more than 30 research awards and honors including the Credit Suisse Technopreneur of the Year Award, Wall Street Journal Asian Innovation Award (Gold), TechVenture Most Disruptive Innovation Award, Asian Entrepreneurship Award (First Prize), InnovFest Most Promising Start-Up Award and HFSP Research Grant Award in 2012, President's Technology Award and Faculty Research Award in 2011, IES Prestigious Engineering Achievement Award in 2010 and highly cited author awards and best paper awards in international conferences. His research was cited by the MIT Technology Review magazine as one of the top ten emerging technologies of 2006 that will "have a significant impact on business, medicine or culture"


Qualification
BEng (First Class Honors), PhD (Cambridge)

Research Interests
Mechanobiology
Cell & molecular Biomechanics with a focus on human diseases
Microfluidic biochips for disease detection and diagnosis
Nanobiomaterials



Full CV: http://www.bioeng.nus.edu.sg/nanolab/cv.html

Lab: http://www.bioeng.nus.edu.sg/nanolab/nanolab.html

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LIM Chwee Teck (林水德)
Professor
+65-6516-7801
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Dr LIM Kian Meng
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-8860
Homepage: http://serve.me.nus.edu.sg/limkm



Qualification
PhD MSc (Stanford), MEng BEng (NUS)

Research Interests
Computational Mechanics: FEM, BEM, Molecular Dynamics
Fast Algorithms: Pre-corrected FFT, Fast Multipole, Asymptotic Methods
Acoustics and Hearing Research
Microfluidics Simulation


Publications
He X., Lim K.M. and Lim S.P. (2008) "Fast BEM solvers for Poisson-type equations" Computer Methods in Engineering and Sciences, 35, pp 21-48.

Lim K.M. and Li H.L. (2007) "A two-layer outer hair cell model with orthotropic piezoelectric properties: Correlation of OHC resonant frequencies with tuning in the cochlea" Journal of Biomechanics, 40, pp 1362-1371.

Lee N.T.S., Tan V.B.C., and Lim K.M. (2006) "Structural and Mechanical properties of Sn-based intermetallics from ab initio calculations" Applied Physics Letters, 89, Art. No. 141908.

Rosales C. and Lim K.M. (2005) "Numerical comparison between Maxwell stress method and equivalent multipole approach for calculation of the dielectrophoretic force in single-cell traps" Electrophoresis, 26, pp 2057-2065.

Ong ET, Lim KM, Lee KH and Lee HP. A fast algorithm for three-dimansional potential fields calculation: Fast Fourier Transform on Multipole (FFTM). J Comp Phys, 192, pp 244-261, 2003.

Lim KM and Steele CR. A three-dimensional nonlinear active cochlear model analyzed by the WKB-numeric method. Hearing Res, 170, pp. 190-205, 2002.

Lim KM, Lee KH, Tay AAO and Zhou W. A new variable-order singular boundary element for two-dimensional stress analysis. IJNME, 55, pp 293-316, 2002.

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LIM Kian Meng
Associate Professor
+65-6516-8860
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Dr QUAN Chenggen
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-8089

Dr. Quan graduated from Harbin Institute of Technology (HIT), China with a BEng in mechanical engineering in 1982. He received his MEng from HIT in 1988 and his PhD from Warwick University, UK in 1992. He was appointed as a lecturer at National University of Singapore (NUS) in Feb 1998 and is currently an associate professor at Applied Mechanics Group, Department of Mechanical Engineering, NUS.


Qualification
PhD (Warwick Univ., UK), BEng MEng (Harbin IT, China)

Modules Taught
EG1109 Statics and Mechanics of Materials; ME4211 Applied Mechanics; ME5103 Plates and Shells; ME5161 Optical Techniques in Experimental Stress Analysis

Research Interests
Applied Optics & Photonics: Optical measurement techniques, laser metrology, optical nondestructive testing, micro and nano photonics measurement

Fringe Pattern Analysis and Image Processing: Digital holography, phase unwrapping, phase shifting interferometry, fast Fourier transform, wavelet transform, digital image correlation.

Publications
International Refereed Journal Papers: 120
International Conference Papers: 70
Editorial Work on SPIE Proceedings: 3
Editorial Work on Journals: 1

Selected Publications:

1) C. Quan, C. J. Tay and W. Chen, “Determination of displacement derivative in digital holographic interferometry”, Optics Communications, Vol. 282, No. 5, 809-815, 2009.

2) W. Chen, C. Quan and C. J. Tay, “Retrieval of instantaneous frequency from digital holograms based on adaptive windows”, Optical Engineering, Vol. 47, No. 6, 065801 (1-6), 2008.

3) C. Quan, C. J. Tay, W. Sun, X. Y. He “Determination of 3D displacement using 2D digital image correlation”, Applied Optics, Vol. 47 No. 4, 583-593, 2008.

4) W. Chen, C. Quan, C. J. Tay, “Measurement of curvature and twist of a deformed object using digital holography”, Applied Optics, Vol. 47, No. 15, 2874-2881, 2008.

5) M. Li, C. Quan, C. J. Tay, “Continuous wavelet transform for micro-component profile measurement using vertical scanning interferometry”, Optics & Lasers Technology, Vol. 40, No. 7, 920-929, 2008.

6) C. Quan, X. Kang and C. J. Tay, “Speckle noise reduction in digital holography by multiple holograms”, Optical Engineering, Vol. 46(11), 115801-1-6, 2007.

7) C. Quan, Y Fu and C. J. Tay, “Vibration measurements by use of temporal wavelet transform”, Measurement Science & Technology Vol. 18, 1718-1723, 2007.

8) C. Quan, C. J. Tay, L. Chen, “A study on carrier removal techniques in fringe projection profilometry”, Optics and Laser Technology, Vol. 39, 1155-1161, 2007.

9) C. Quan, Y. Fu and H. Miao “Wavelet analysis of digital shearing speckle patterns with a temporal carrier”, Optics Communications, Vol. 260, No. 1, 97 – 104, 2006.

10) C. Quan, H. Miao and Y. Fu, “Surface contouring by optical edge projection method based on continuous wavelet transform” Applied Optics, Vol 45, No. 20, 4815-4820, 2006.

11) C. Quan, S. H. Wang, C. J. Tay and I. Reading “Study on the use of white light interferometry for multifiber-end surface profile measurement” Optical Engineering, Vol. 45, No. 5, 055603, 2006.

12) L. J. Chen and C. Quan, “Fringe projection profilometry with non-parallel illumination: a least square approach”, Optics Letters, Vol. 30, No. 16, 2101-2103, 2005.

13) C. Quan, C. J. Tay, F. J. Yang and X. Y. He, “Phase extraction from a single fringe pattern based on guidance of an extreme map”, Applied Optics, Vol. 44, No. 23, 4814-4821, 2005.

14) S. H. Wang, C. Quan, C. J. Tay, “An optical shadowgraph microscope for a semiconductor wafer bump height measurement”, Review of Scientific Instruments, Vol. 76, No. 046103, 1-2, 2005.

15) C. Quan, C. J. Tay, L. J. Chen, “Fringe density estimation by continuous wavelet transform”, Applied Optics, Vol. 44, No. 12, 2359-2365, 2005.

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QUAN Chenggen
Associate Professor
+65-6516-8089
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Dr Shailendra P. JOSHI
Assistant Professor

Department of Mechanical Engineering
National University of Singapore
Block E1, #07-15
Singapore -117576


Contact : +65-6516-4496
Homepage: http://www.joshigroup.net

Current research interests:
- Mechanics of deformation instabilities in nanocrystalline and amorphous materials.
- Modeling rate-dependent failure processes in nanostructured materials and composites.
- Design of hierarchical composites.


Qualification
PhD (IIT Bombay), India, ME (University of Pune), India, BE (University of Pune), India

Modules Taught
AY08-09 - ESP 2106: Principles of Continua AY08-09 - ESP 3206: Continuum Mechanics

Research Interests
Computational-Experimental Materials Mechanics; Rate-dependent material instabilities and failure processes; Nano/non-crystalline materials; Hierarchical composites


Publications
1. B Cao, SP Joshi, KT Ramesh. (2009) Strengthening mechanisms in cryomilled UFG Al 5083 at quasistatic and dynamic rates of loading. Accepted in Scripta Materialia.

2. SP Joshi, C Eberl, B Cao, KT Ramesh, KJ Hemker. (2009) On the occurrence of Portevin-Le Châtelier instabilities in ultrafine-grained Al5083. Accepted in Experimental Mechanics.

3. H Zhang, J Ye, SP Joshi, JM Schoenung, ESC Chin, KT Ramesh. (2008) Rate-dependent behavior of hierarchical Al matrix composites. Scripta Materialia, 59(10), 1139-1142.

4. SP Joshi, KT Ramesh. (2008) Stability map for nanocrystalline and amorphous materials. Physical Review Letters, 101, 025501. Also selected for the Virtual Journal of Nanoscale Science & Technology, July 21, 2008.

5. SP Joshi, KT Ramesh. (2008) Grain size dependent shear instabilities in body-centered and face-centered cubic materials. Materials Science and Engineering-A, 493, 65-70.

6. SP Joshi, KT Ramesh. (2008) Rotational diffusion and grain size dependent shear instability in nanostructured materials. Acta Materialia, 56(2), 282-291.

7. SP Joshi, KT Ramesh. (2007) An enriched continuum model for the design of a hierarchical composite. Scripta Materialia, 57, 877-880.


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Shailendra P. JOSHI
Assistant Professor
+65-6516-4496
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Dr SHIM Victor, P.W.
Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-2228
Homepage: http://serve.me.nus.edu.sg/mpespwv



Qualification
B.E. (Auckland), M.Eng. (NUS), Ph.D. (Cambridge), MIES, MASME, PEng (Singapore)

Research Interests
Impact Mechanics, Dynamic Material Behaviour
Fabric Penetration, Cellular Materials, Mechanics of Biological Materals
Physical Robustness of Products and Components



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SHIM Victor, P.W.
Professor
+65-6516-2228
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Dr TAN Vincent
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-8088



Qualification
M.Eng., NUS, Ph.D., Northwestern University

Research Interests
COMPUTATIONAL MECHANICS - Multiscale and Molecular Dynamics Simulations

IMPACT MECHANICS - Flexible armour systems, Biomimetic materials




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TAN Vincent
Associate Professor
+65-6516-8088
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Dr TAY Cho Jui
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Singapore 119260
Contact : +65-6516-2557



Qualification
B.Sc. (Hons), Ph.D., Strathclyde Uni. UK

Research Interests
Experimental Mechanics Optical Metrology MEMS NEMS
Micro-components Evaluation Using Laser Interferometry


Publications
1. Tay, C J, X Y He, X Kang and C Quan, Coplanarity study on ball grid array packaging. Optical Engineering, 40, 8 (2001): 1608-1612.
2. Tay, C J, C Quan, S H Wang and H M Shang, Determination of a micromirror angular rotation using interferometric method. Optics Communications, 195, 1-4 (2001): 71-77.

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TAY Cho Jui
Associate Professor
+65-6516-2557
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Dr TAY Tong-Earn
Professor

Rm EA-07-17
Dept. of Mechanical Engineering
National University of Singapore
9 Engineering Drive 1
Singapore 117576
Contact : +65-6516-2887

Dr T.E. Tay is a Professor at the Department of Mechanical Engineering at the National University of Singapore and is also currently the head of the department. He obtained his Bachelor of Engineering (First Class) and PhD in Solid Mechanics from the University of Melbourne, Australia. His research interests are in damage, fracture, impact and computational analysis of composite structures, and multiscale modelling and molecular mechanics of polymers and composites. He is the author or co-author of 65 international journal papers, more than 130 conference and seminar presentations, 2 patents and a book chapter. He serves on the editorial boards of the Journal of Composite Materials, International Journal of Damage Mechanics and Journal of Reinforced Plastics and Composites, and is a regular reviewer for various journals in the field of composites and mechanics. He is a member of the scientific advisory board of the International Conference on Composite Materials (ICCM), a series of premier biennial conferences. Prof Tay is also a registered professional engineer, and actively involved in projects with industry.

Qualification
PhD (Univ of Melb); BEng, 1st Class (Univ of Melb)

Modules Taught
ME4212 Aircraft Structures.

Research Interests
Damage, Delamination, Fracture and Fatigue of Composites.
Multiscale Modelling, Molecular Mechanics of Composites and Polymers.

Publications
Selected publications:
1. Tay T.E., Liu G., Tan V.B.C., Sun X.S., Pham D.C., "Progressive failure analysis of composites", Jour. of Composite Materials, (2008), vol 42, no 18, p1921-1966, (40th anniversary volume).
2. Sun X.S., Tan V.B.C., Liu G.Y., Tay T.E., "An enriched element-failure method (REFM) for delamination analysis of composite structures", Int. Jour. for Numerical Methods in Engineering, (in press).
3. Tan V.B.C., Zeng X.S., Deng M., Lim K.M., Tay T.E., "Multiscale modeling of polymers - the pseudo amorphous cell", Computer Methods in Applied Mechanics and Engineering, (2008), vol 197, no 6-8, p536-554.
4. Tay T.E., Tan V.B.C., Tan S.H.N., "Element-failure: An alternative to the material property degradation method for progressive damage in composite structures", Jour. of Composite Materials, (2005), vol 39, no 18, p1659-1675.
5. Tay T.E., "Characterization and analysis of delamination fracture in composites - an overview of developments from 1990 to 2001", Applied Mechanics Reviews, January (2003), vol 56, no 1, p1-32.
6. Tay T.E., Tan V.B.C., Deng M., "Element-Failure Concepts for Dynamic Fracture and Delamination in Low-Velocity Impact of Composites", Int. Jour. of Solids & Structures, (2003), vol 40, no 3, p555-571.

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TAY Tong-Earn
Professor
+65-6516-2887
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Dr TOH Siew Lok
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Contact : +65-6516-2578



Research Interests
Optical metrology, bioengineering





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TOH Siew Lok
Associate Professor
+65-6516-2578
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Dr ZHOU Guangya
Associate Professor

National University of Singapore
Dept. of Mechanical Engineering
Singapore 119260
Office: E2-02-31
Contact : +65-6516-1235
Homepage: https://sites.google.com/site/zhousresearch/



Modules Taught
ME3281 (Microsystems design and applications) ME4283 (Microfabrication processes) GEK1546 (Harnessing patterns of light)

Research Interests
Micro/nano-electromechanical Systems (MEMS/NEMS)
Optical microsystems
Nanophotonics, silicon photonics
Micro and nano fabrication
Sensors, optical precision measurement techniques



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ZHOU Guangya
Associate Professor
+65-6516-1235
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