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A Post-Doctoral position at the Hebrew University- mechanics of landslide triggering.

Submitted by einatah on

A postdoctoral research position is available at the Earth Sciences Institute, at the Hebrew University, Jerusalem, Israel, focusing on understanding basic processes of submarine landslide triggering, with applications to the Eastern Mediterranean Sea, offshore Israel. The work will involve numerical and/or physical modeling, analyzing the mechanisms of submarine slope-failure. Applicants should send their CV and intention letter including names of 3 referees, directly to the PIs: Prof.

Highly stretchable and tough hydrogels

Submitted by Jeong-Yun Sun on

Tribology for Sustainability: Economic, Environmental, and Quality of Life - Special Issue freely available online!

Submitted by Laure Ballu on

Tribology International Special Issue of the 37th Leeds-Lyon Symposium on Tribology: Tribology for Sustainability: Economic, Environmental, and Quality of Life.

For more information or to access this Special Issue, go to: http://www.journals.elsevier.com/tribology-international/

LSDYNA UMAT- history variable choice

Submitted by hariharan on

Hi,

I'm presently working on implementing anisotropic yield criteria in LSDYNA as UMAT.

I understand from the LSDYNA documents that effective plastic strain is a default history variable.  So when we code, can we omit the update of effective plastic strain as a history variable? If so, where is it stored and how is it retrieved during post-processing ?

LSDYNA UMAT- history variable choice

Submitted by hariharan on

Hi,

I'm presently working on implementing anisotropic yield criteria in LSDYNA as UMAT.

I understand from the LSDYNA documents that effective plastic strain is a default history variable.  So when we code, can we omit the update of effective plastic strain as a history variable? If so, where is it stored and how is it retrieved during post-processing ?

Giant voltage-induced deformation in dielectric elastomers near the verge of snap-through instability

Submitted by Tiefeng Li on

     Dielectric elastomers are capable of large voltage-induced deformation, but achieving
such large deformation in practice has been a major challenge due to electromechanical
instability and electric breakdown. The complex nonlinear behavior suggests an important
opportunity: electromechanical instability can be harnessed to achieve giant voltage-induced
deformation.