Newton's laws of motion

First

An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Dusan Krajcinovic, retired professor of mechanical and aerospace engineering at Arizona State University, passed away on August 10, 2007, after a long illness.  Dusan was active in the mechanics community.  In addition to his teaching and research activities, he was a past member and chair of the Applied Mechanics Divison of ASME.  He also served a term on the U. S. National Committee on Theoretical and Applied Mechanics. He authored the book Damage Mechanics published by North-Holland in 1996.  He will be missed by all those who knew him.

In July 2007, my friend of a consulting company contacted me for recruiting a computational mechanics engineer. I told him that all my graduate students found jobs, and there are not many mechanics students in our small department. So, I posted his ad at iMechanica. Only after one week, he asked me to withdraw this ad! Why?

Because many high-qualified applicants contacted him in one week and, he’d give the offer right away.  I believe this example is an index of active user groups of iMechanica.

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.