A5056543738- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Carbon Nanotubes in Composites
- Adhesion, Friction, and Surface Interactions
- Graphene research and applications
- Tribology and Lubrication Engineering
- Manufacturing Process and Optimization
- Nanotechnology research and applications
- Welding Techniques and Residual Stresses
- Global trade and economics
- Nanopore and Nanochannel Transport Studies
- Boron and Carbon Nanomaterials Research
- Material Dynamics and Properties
- Laser Material Processing Techniques
- Metallic Glasses and Amorphous Alloys
- Force Microscopy Techniques and Applications
- Diamond and Carbon-based Materials Research
- Globalization, Economics, and Policies
- Advanced MEMS and NEMS Technologies
- Thermal properties of materials
- Composite Structure Analysis and Optimization
- Graphene and Nanomaterials Applications
- Supercapacitor Materials and Fabrication
- Surface Roughness and Optical Measurements
- nanoparticles nucleation surface interactions
Nanyang Technological University
2011-2020
Data Storage Institute
2006-2010
Agency for Science, Technology and Research
2008-2009
City University of Hong Kong
2003
University of Manchester
2002
University of Toronto
1991
Buckling behavior of single-walled and multiwalled carbon nanotubes is studied under axial compression in this work. Brenner's ``second generation'' empirical potential used to describe the many-body short-range interatomic interactions for nanotubes, while Lennard Jones model van der Waals added nanotubes. Single-, two-, three-, four-walled are considered simulations order examine effects number layers on structural properties Results indicate that there exists an optimum diameter at which...
This paper examines on the obstacles specific to implementation of non-destructive testing (NDT) techniques in additive manufacturing (AM). The general challenges impeding adoption AM for volume production parts, and use NDT ameliorate some these are studied. These include lack understanding materials, insufficient standards mechanical additively manufactured parts. An overview principle operation in-process inspection methods is presented. thermography, acoustic emission testing....
Additive manufacturing (AM), also known as threedimensional (3-D) printing, is the process of joining materials to make objects from 3-D model data, usually layer upon layer. Contrary conventional techniques, parts are built up by addition one at a time, corresponding cross section sliced model. Due nature AM's layer-wise fabrication process, need for fixtures and cutting tools eliminated. Furthermore, computer-aided design (CAD) have allowed optimization on demand, enabling production...
This paper investigates the thermal stability of single and multi-walled carbon nanotubes (CNTs). The modeling simulation problem are carried out using molecular dynamics incorporating Berendsen thermostat scheme for both open-ended close-capped CNTs. It is found that single-walled CNTs thermally more stable than simulations also indicate shorter able to withstand higher loads. with a larger diameter resistant
This paper presents an overview on the principle of operation for post-process inspection non-destructive testing (NDT) techniques. The techniques include visual inspection, liquid penetrant testing, magnetic particle eddy current ultrasonic and radiography. applications these NDT in additive manufacturing (AM) their suitability defects detection additively manufactured parts are reviewed. sensitivity, advantages disadvantages each technique evaluated. types defect, detectability by...
In the study described herein, we observed buckling behavior of carbon nanotube (CNT) bundles under axial compression using molecular dynamics (MD) simulations. We found that critical loads CNT are much higher than an individual single-walled (SWCNT). The addition SWCNTs into a bundle results in as fivefold increase its load. long-range van der Waals interactions also improve overall rigidity bundles. larger bundle, greater significance interactions. load is directly proportional to SWCNT.