problems with VENER and general energy question - Finite Element Modeling
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PolymerFEM.com Discussion Boarden-USThu, 30 May 2024 16:15:40 +0000wpForo60CENER & VENER (or ALLCD & ALLVD)
https://polymerfem.com/community/finite-element-modeling-aa/problems-with-vener-and-general-energy-question/#post-5640
Tue, 15 Apr 2008 04:24:27 +0000I know now a little bit more about what happens with the variable VENER.
This variable is definitively not available using the field output option. Nevertheless Abaqus is initializating this variable with zeros, even though it does not compute anything with this variable.
What I do not now further on is:
When is Abaqus using the variable VENER and in which situations the variable CENER (or ALLCD, ALLVD, respectively) to compute the dissipative part of the energy. If I habe a thermo-mechanically coupled system the dissipated energy should heat the material and thus should produce thermocally induced stress & strain. Due to this it should be part of the strain energy not directly but via the induced stress & strain.
In order to use the dissipated part as a heat source I have to know what really Abaqus is doing meaning which of the offered energies are the real dissipation energies.
If I am using hiperelastic models in conjunction with visco-elastic models I have to know the following:
Especially I have to know why the variables CENER & ALLCD are not usable if one is using hyperleastic material models in conjunction with e.g. visco-elastic material models. Meaning what are the dissipative energies due to the material behaviour in this case??
Hoping for help,
ciao Gunnar]]>Finite Element ModelingMechmindfulhttps://polymerfem.com/community/finite-element-modeling-aa/problems-with-vener-and-general-energy-question/#post-5640
https://polymerfem.com/community/finite-element-modeling-aa/problems-with-vener-and-general-energy-question/#post-5621
Thu, 10 Apr 2008 22:23:51 +0000Finite Element ModelingJorgenhttps://polymerfem.com/community/finite-element-modeling-aa/problems-with-vener-and-general-energy-question/#post-5621problems with VENER and general energy question
https://polymerfem.com/community/finite-element-modeling-aa/problems-with-vener-and-general-energy-question/#post-26820
Mon, 07 Apr 2008 05:07:20 +0000Finite Element ModelingMechmindfulhttps://polymerfem.com/community/finite-element-modeling-aa/problems-with-vener-and-general-energy-question/#post-26820