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International Conference on Mechanical, Automotive and Aerospace Engineering, ICMAAE11

Submitted by Dr Syed Muhamm… on

The Faculty of Engineering, International Islamic University Malaysia is organizing this International Conference to bring together researchers and engineering professionals from all over the globe to meet and deliberate in the beautiful green city of Kuala Lumpur.

Prony series for viscoelasticity in Abaqus.

Submitted by priyadd84 on

Hi all,

     My first question is i have a set of stress Vs strain data for different strain rates (100/s to 350/s). Can prony series be extracted using these data? Or is there a way in Abaqus i can enter directly this data?

    After reading for a while a came to know that stress relaxation data is needed for defining pony series. My second question is can stress relaxation data can be obtained for high strain rates in the order of 100 to 350/s?

Thanks all 

 

Free Configuration Manifold - Elastic Deformations

Submitted by John Craighead on

Like others, I'm very sorry to learn of Jerry Marsden's passing. He kindly helped all who asked (including me) despite a very busy life and recent illness. It seems fitting to mention this before citing him below. 

According to Marsden/Hughes (Mathematical Foundations of Elasticity), stretch & shear (from homogeneous elastic deformation) are determined soley by U in the polar decomposition of the deformation gradient F=RU where R = rot'n & U = right stretch.