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Austenite-Martensite Interface in Shape Memory Alloys

Submitted by jiangyuli on
research

This is a preprint that is going to appear on Applied Physics Letters. It is somewhat related to a paper by Kaushik Dayal on complex crystalline structure via phase field simulation that was posted here. 

 

Austenite-Martensite Interface in Shape Memory Alloys

C. H. Lei, L. J. Li, Y. C. Shu, and J. Y. Li

Abstract

Material Subroutine in LS DYNA

Submitted by bhargavasista on
research

Hi all,

 I have developed a viso-hyperelastic material model, and now I am trying to implement it in LS DYNA for which I need to write a sub routine. Since I am developing a subroutine for the first time, I am finding it a bit challenging. I have enough documentation for doing this in ABAQUS but not for LS DYNA. I wanted to know what is the major difference between subroutines written for ABAQUS and LS DYNA? Or is there too much of difference to be even compared? It would be of great help for me if you could answer this question for me. Thank you very much

Paper by Ellad Tadmor & Nikhil Admal---Atomistic Definition of Stress

Submitted by Pradeep Sharma on
research
atomistic stress

For both mechanicians and physicists, linking continuum concepts to the underlying microscopic characteristics of materials has remained a major preoccupation. Certainly, with the recent advent of the so-called "multiscale" modeling approaches, this topic has been brought to a sharp focus. Cauchy stress is one such continuum concept that has courted a fair amount of controversy.

Maxwell stress of a dielectric elastomer subjected to electric field

Submitted by Lianhua Ma on
research
Maxwell stress of a dielectric elastomer subjected to electric field

 

Hello everyone,

As reported in some references, Maxwell stress of a dielectric  elastomer subjected to electric field can be determined by the following formula

P=e*E^2    (1) -------e=e0*e1, e0 is the dielectric permittivity of vacuum, e1 is the relative dielectric permittivity of the elastomer, and E is the applied electric field.

Generate softening curve

Submitted by ss09 on
research
damage mechanics

Hello,

 

I seek help from the forum regarding the following. Because I am very new to mechanics.

I have a continuum damage mechanics model with me. I have set up a problem of a typical three point bending test on a notched beam. The notch in the center of the specimen and extends from the bottom face up to the middle of the thickness. It is a plane stress problem. Now I want to simulate load-displacement curve obtained from the experiment (s).

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