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Problem with adding Thermal Expansion in Linear Elastic Material

Posted Apr 5, 2014, 9:53 a.m. EDT 1 Reply

Robinson
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Hello,

I want to add Thermal Expansion in solid structure under Linear Elastic Material.
When I see equation, theses equations are wrong for thermal stress.
I download a example from this Forum for Thermal Expansion and see these equations are correct.
Would you please why my equation are wrong?
Please attached files.

Regards

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1 Reply Last Post Apr 5, 2014, 7:52 p.m. EDT
Nagi Elabbasi Facebook Reality Labs
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Posted: 1 decade ago Apr 5, 2014, 7:52 p.m. EDT
Both are correct. One is based on the Green-Lagrange strain (for geometric nonlinearity), and the other is based on infinitesimal strains (does not account for geometric nonlinearity).

Nagi Elabbasi
Veryst Engineering
Both are correct. One is based on the Green-Lagrange strain (for geometric nonlinearity), and the other is based on infinitesimal strains (does not account for geometric nonlinearity). Nagi Elabbasi Veryst Engineering

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