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L. Roy Xu's picture

ASME Congress 09 on the Mechanical Behavior of Nanocomposite Materials

You are invited to present your research work on the mechanical behavior of nanocomposite materials (Nov. 13-19, 2009 in Florida, close to Disney World). This topic will be focused on systematic mechanics experiments, modeling and simulations to solve new challenging mechanics problems such the effect of nanofiller agglomeration on the stiffness and strength reduction; interfacial stress transferring and interface strength evaluation at the nanoscale.  Deadline for abstract submission is March 17, 2009.

L. Roy Xu's picture

Journal Club Theme of 1 May 2008: Mechanical Behaviors of Polymer-matrix Nanocomposites

Choose a channel featured in the header of iMechanica: 

1. Definition of nanocomposites Nanocomposites are a novel class of composite materials whose reinforcements have dimensions in the range of 1-100 nm. Although nanoscale reinforcements (or nanofillers) of nanocomposites have different kinds of fillers such as nanofibers, nanowires, nanotubes and nanoparticles etc, their mechanical behaviors have some common features.

L. Roy Xu's picture

ASME Congress IMECE09 Topic on the Mechanical Behavior of Nanocomposite Materials

You are invited to present your research work on the mechanical behavior of nanocomposite materials (Nov. 13-19, 2009 in Florida ). This topic will be focused on systematic mechanics experiments, modeling and simulations to solve new challenging mechanics problems such the effect of nanofiller agglomeration on the stiffness and strength reduction; interfacial stress transferring and interface strength evaluation at the nanoscale.

L. Roy Xu's picture

Openings for New Ph.D. Students on Composite Materials and Failure Mechanics at Vanderbilt University, USA

New students may start from January 2008 if the graduate students have previous research experience in solid mechanics (e.g., nano/micro-mechanics, computational mechanics) or material engineering (MD simulation, mechanical behaviors). Students will have the opportunities to conduct balanced experimental and computational work on the durabilty and impact failure of marine composite materials; failure and material designs of nanocomposite materials; or rehabilitation of infrastructure materials using composites and other materials.  An MS degree is required.

Henry Tan's picture

POLYMER MATRIX COMPOSITES REINFORCED BY CARBON NANOTUBES

CONTINUUM MODELING OF INTERFACES IN POLYMER MATRIX COMPOSITES REINFORCED BY CARBON NANOTUBES

L. Y. JIANG, H. TAN, J. WU, Y. HUANG, K. -C. HWANG
Review Article, 2007, accepted by NANO

The interface behavior may significantly influence the mechanical properties of carbon nanotube (CNT)-reinforced composites due to the large interface area per unit volume at the composite. The modeling of CNT/polymer interfaces has been a challenge in the continuum modeling of CNT reinforced composites.

Henry Tan's picture

carbon nanotube-reinforced composite materials

The effect of van der Waals-based interface cohesive law on carbonnanotube-reinforced composite materials

H. Tan, L. Y. Jiang, Y. Huang, B. Liu, and K. C. Hwang
Composite Science and Technology, 2007, accepted.

L. Roy Xu's picture

TEM image showing uniformly distributed nano-fibers inside epoxy matrix

We observed that all nanofibers are curved not straight. So the Young’s modulus of the nanocomposite material is always lower than the model prediction using traditional micro-mechanics theory assuming straight nanofibers/nanotubes, as reported by Prof. Y. Huang’s group at UIUC.

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