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Introducing Ansys Innovation Courses

ANSYS, Inc. has been investing time and resources into their knowledge resources and academic program and their recent contribution to the community is the "Ansys Innovation Courses". These are on-demand physics-based courses that are free for everyone which empowers students and professionals to visualize, reinforce, and rapidly master key physics concepts, with the help of simulations.

Material Subroutine in LS DYNA

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

-Bhargava Sista 

Constitutuive modelling of viscoelastic materials

I am currently working on constictutive modelling of soft biological tissues, considering them as nonlinear viscoelastic materials. I am using the split form of energy density function i.e modelling separately the hyperelastc part and the visoelastic part. I am using Ogden formula for hyperelastic part and for the viscoelastic part, I am currently using the second and third invariants of stretch rate tensor.

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