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10/25/2009
On October 25, 2009, Advanced Dynamics Corporation released the Word's first multi-disciplinary, multi-physics, multi-scale and multi-fidelity analysis amd design optimization (4MAO) ......
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For immediate inquiries call Tel: (859) 699-0441 Fax:(859) 243-5615 Email: Contact@advanceddynamics-usa.com


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Liping Xue
Principal Scientist

Tel: 859-699-0441
Fax: 859-243-5615
liping.xue@AdvancedDynamics-USA.Com


Dr. Liping Xue has many years experience in computational materials science and solid mechanics. He has been recognized as an outstanding young scientist in this field. He played the leading role in simulating the role of interface in the thermal conductivity of carbon nanotube composites. The results of his numerical modeling have been published in the world’s most prestigious journals, including Nature Materials, Journal of Applied Physics, and Applied Physics Letters. The results were also reported by the Rensselaer Online News & Information and by Rensselaer Magazine. They have received worldwide attention and been cited numerous times due to their many positive implications in the high-technology industry. Dr. Xue also improved the material point method (MPM) and extended its use from solid mechanics to solid-fluid interacting simulations. His work on the MPM is essential to the C-SAFE project at University of Utah. Dr. Xue is the Principle Investigator of several government and industrial contracts. He is now one of the technical leaders for the development of ADI’s integrated and variable-fidelity computer software, ASTE-P. Dr. Xue received his Ph.D. in materials science and engineering in 2004 from Rensselaer Polytechnic Institute. He then worked as a research associate at University of Utah. Dr. Xue joined ADI in 2007 as a senior research scientist.


Figure 1. Thermal Conductivity Simulations of Carbon Nanotube Composites.
Carbon nanotubes are superior thermal conductors by themselves. But the thermal conductivity of the carbon nanotube composites do not increase as expected. Dr. Xue and his group using molecular dynamics simulations discovered that the interfacial thermal resistance is so high that it limits the thermal conductivity of the carbon nanotube composites.


Figure 2. Functionalization of the Carbon Nanotube.
The interfacial thermal resistance between the polymer matrix and the carbon nanotube can be decreased by nanotube functionalization. As a result, the overall thermal conductivity of the carbon nanotube thermal conductivity can be increased.


Figure 3. Density Contours with Velocity Streamline over an Advanced Fighter Plane.

As one of the core modules in ASTE-P, the Material Point Method has been extensively enhanced and extended to solve the fluid structure interaction (FSI) problems. This novel method avoids the time-consuming grid generation for complex geometries and mathematically solving the fluid and structure compatibility as well as time-synchronization problems that are typically encountered by standard CFD/CSD coupling approaches for fluid-structure interaction, leading to the best accuracy and computational efficiency achievable. More importantly, the particle-based method allows for computing the geometrically nonlinear structure dynamics (i.e. large structure/control surface deformations and/or motions) in the natural and efficient way because particles can freely move. It is an innovative approach that offers significant more advantages than conventional methods.

Headquarters: Advanced Dynamics Inc. 1500 Bull Lea Road, Suite 203, Lexington, KY 40511
For immediate inquiries call Tel: (859) 699-0441 Fax:(859) 243-5615 Email: Contact@advanceddynamics-usa.com

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