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Finalists for the 2014 Melosh Competition

Submitted by John E. Dolbow on
research
melosh competition

Seven finalists have been identified for the 2014 Melosh Competition to be held Friday, April 25, at Duke University.  The finalists and their current institutions are:

Amin Aghaei, Carnegie Mellon University

Sourish Chakravarty, SUNY Buffalo

Gina El Jannoun, MINES ParisTech

Mhadi Moghadam, UCSD

Phani Motamarri, University of Michigan

Nathan Roberts, University of Texas

Timothy Truster, University of Tennessee

Please join me in congratulating the finalists!!! 

Evading the strength-ductility trade-off dilemma in steel through gradient hierarchical nanotwins

Submitted by Yujie Wei on
research
Plasticity
finite element analysis
twinning
TWIP steel

It is a long-standing goal in metallurgy to enhance the strength of materials without sacrificing ductility. In a recent article in Nature Communications, we reported an effective way to evade the strength-ductility trade-off dilemma in twin-induced plasticity steel.

Abaqus deep drawing a square plate

Submitted by IMOTEC on
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I am trying to do deep drawing in ABAQUS. While to do this, I'm getting help 

to ABAQUS examples which is name Deep Drawing a Square Box. In my model 

looks everything is ok. But my punch reaction force is very low. In addition 

I did this model experiment in our laboratory. For example my model max 

punch force 4000 N but in experiment real punch force for same material 

nearly 12000 N. My model link is below: 

 http://yadi.sk/d/CgobajFLLXd2a

UMAT and UEXPAN subroutines

Submitted by abhishek.ds on
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Free Tags
UMAT
creep
UEXPAN
prestress

I am having problems in writing the umat and uexpan subroutines applicable to the creep model defined in 



http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000375

 

Has anybody written the algorithm? 

Professors Markus Buehler, Katia Bertoldi and Oscar Lopez-Pamies will receive the Journal of Applied Mechanics Award in 2014

Submitted by Yonggang Huang on
research

Prof. Markus Buehler from MIT will receive the 2014 Journal of Applied Mechanics Award for his paper "Bioinspired graphene nanogut" (Journal of Applied Mechanics, v 80, article 061009, 2013).  Profs. Katia Bertoldi from Harvard University and Oscar Lopez-Pamies from University of Illinois will also receive the 2014 Journal of Applied Mechanics Award for their paper "Some remarks on the effect of interphases on the mechanical response and stability of fiber-reinforced elastomers" (Journal of Applied Mechanics, v 79, article 031023, 2012). 

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