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undefined variable comp1.solid.Cgl11
Posted 30 gen 2017, 21:55 GMT-5 Materials Version 5.0 1 Reply
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Dear all:
I am modeling a nonlinear elastic material using Uniaxial Data to describe the constitutive relation. However, a report 'Undefined variable. - Variable: comp1.solid.Cgl11, Geometry: geom1, Domain: 1, Feature: Time-Dependent Solver 1 (sol1/t1) was reported.
Could anyone help by giving clues on
(1) what did I miss in constructing the model, and
(2) where could I find details of COMSOL variables such as solid.CglXX (I found a very brief description in the report - C:g tensor, local coordinate system - which does not help much)?
Thanks.
Sincerely,
Zhiping
I am modeling a nonlinear elastic material using Uniaxial Data to describe the constitutive relation. However, a report 'Undefined variable. - Variable: comp1.solid.Cgl11, Geometry: geom1, Domain: 1, Feature: Time-Dependent Solver 1 (sol1/t1) was reported.
Could anyone help by giving clues on
(1) what did I miss in constructing the model, and
(2) where could I find details of COMSOL variables such as solid.CglXX (I found a very brief description in the report - C:g tensor, local coordinate system - which does not help much)?
Thanks.
Sincerely,
Zhiping
1 Reply Last Post 31 gen 2017, 05:51 GMT-5
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Posted:
8 years ago
Hi Zhiping,
You have found a bug present in version 5.0. It was corrected in version 5.1 (released April 2015). The error is triggered by the combination of Nonlinear Elastic Material and the 'Nearly Incompressible' option.
The Cg tensor is an internal intermediate variable. It is a contraction between the constitutive tensor and the metric tensor, thus 'C:g'.
Regards,
Henrik
You have found a bug present in version 5.0. It was corrected in version 5.1 (released April 2015). The error is triggered by the combination of Nonlinear Elastic Material and the 'Nearly Incompressible' option.
The Cg tensor is an internal intermediate variable. It is a contraction between the constitutive tensor and the metric tensor, thus 'C:g'.
Regards,
Henrik