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Jacobian of hyperelastic model
Constitutive Models
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May 29, 2013 9:34 pm
(@RyanConner)
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Joined: 10 years ago
Hi, everyone.
I was working with the umat of hyperelastic model (espacially the Mooney-Rivlin model). Firstly I read the Abaqus Theory Manual, in section 4.6.1, the material jacobian C_ijkl are consisted of deviatoric part C-s and volumetric part K, see the equation (4.6.1-12)([B]FIG.1[/B]). Also the abaqus gave the details of jacobian of Neo-Hookean model([B]in FIG.2[/B]). But I can not figure out where the second to last term in the expression comes from.Would you kindly help me ?
.
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Sep 17, 2015 2:58 pm
(@aomidvar)
New Member
Joined: 7 years ago
Hi zqctate,
Did you manage to figure out the above? I am currently trying to understand the same example.
Regards,
Robbie
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Feb 03, 2016 8:50 am
(@obulibalaji)
New Member
Joined: 7 years ago
Hi Robbie, hi zqctate,
I have exact the same Problem....has anyone of you solved the problem?
Thanks
Alex4589
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