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

Submitted by Pradeep Sharma on
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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
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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).

Looking for Postdoctoral Position

Submitted by Mehdi Naderi on
research

I am currently a doctoral candidate at Louisiana State University, and expect to complete my PhD degree requirements by Fall 2010. My doctoral dissertation is conducted under the direction of Prof. M. M. Khonsari, and looks at the use of a relatively new methodology for the fatigue of structural components. In my research, I developed an effective and new criterion for fatigue life monitoring of the components subjected to cyclic loading based on thermodynamic entropy concept.

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