Thank you for your interest shown in my previously posted work.  Here's a post-print for an article of an extension to my previous work.  Extension in the sense that the MD simulation was performed on "larger" metallic nanowires (2.0 nm to 6.0 nm), and the behavior of gold (Au) nanowires were studied.  The mechanism behind strain-induced amorphization was explained and the phenomenon of multiple necking was observed, implying the presence of "localized" amorphization instead of a "globalized" one observed in shorter nanowires.

doi:10.1016/j.engfracmech.2007.07.022 

Huang, Nano Lett. 7, 2335 (2007); Philip Ball, Nature 448, 396 (2007)

Watch movies at: http://pubs3.acs.org/acs/journals/supporting_information.page?in_manusc…  

See attachment for announcement of a Structural FEA Engineer position at Schlumberger's Sugar Land Product Center

 in Sugar Land, Texas.  If interested, please respond to Sepand Ossia (sossia [at] slb.com).

A cohesive law for carbon nanotube/polymer interfaces based on the van der Waals force (JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 54 (11): 2436-2452 NOV 2006)

Authors: Jiang, L.Y., Huang, Y., Jiang, H., Ravichandran, G., Gao, H., Hwang, K.C. and Liu, B. 

Our paper on the Mechanical threshold stress (MTS) model for 6061-T6 aluminum has been accepted by JoMMS.  There are several things of interest in the paper:

1) The use of a phonon drag model to predict the sharp increase in flow stress at strain rates above 10,000 /s.  This behavior is seen in a  number of materials and is hard to fit using standard power law plasticity models.  Our model does a good job in this regard.

Hello every body,

As most of you know, fracture mechanics of polymer materials needs a special consideration of the viscoelastic material properties. Especially under thermomechanical loading the role of glass transition temperature T_g is very important. That is why people try to characterize the material with different methods including stress relaxation based on Time-Temperature superposition or DMA test.