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Advanced Simulation Technologies in the Upstream Oil & Gas Industry

In this movie taken at 1 Mfps using our new Kirana camera (courtesy Y. Rotbaum), one can see a dynamic tension test of a grroved specimen in a tensile Hopkinson bar. The groove is relatively sharp and 10% of the diameter in depth.

It so happens that the dynamic neck inception occurs outside the notch area, in other words a strong geometrical flaw does not dictate the failure locus. We have performed over a hundred of such experiments. This is a very interesting and challenging observation.... 

 Hello everyone,

 I want to  simulate contact problem by using UEL.I define the surface in the inp file.But abaqus don not 

recognize it. How can I solve this problem?

PS.  Sorry for my English.I hope it is clever enough to understand the problem.

Regards.

J.H. Zhai 

Hi everyone
I am trying to use Abaqus with combined hardening (kinematic + isotropic ) material. Structural milled steel strain-stress curve was obtained through tensile coupon test (ASTM E8).
Please let me know how I can extract material property (C , ɣ , Q and b ) for property input?
It is my first approach to martial plasticity so any detailed explanations or examples would be appreciated.
Regards
Farzad

Dear All

 How can I access to the mechanical properties of fibers and matrix in composites separetly?

The considered mechanical properties include E, G, density and v respectively for both fibers and matrix separetly.

Thanks

http://snu.edu.in/pdf/Dept-of-Mechanical-Engineering.pdf

How to define JOULE HEAT FRACTION in ABAQUS as a function of temperature? Thank you!