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Use the temperature at each recovery point for solid thermal stresses - #342
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victorkemp merged 2 commits intoOct 18, 2026
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Solid thermal stress recovery used the average temperature of the element's first four grids at every recovery point, for every solid element type. Any non-uniform temperature field gave wrong thermal stresses. The element routines now pass the temperature at each recovery point, interpolated with the element shape functions, and LK9 uses it for the thermal strain.
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Solid thermal stress recovery previously used the average temperature of the element's first four grids at every recovery point, for every solid element type. Any non-uniform temperature field gave wrong thermal stresses.
The element routines now pass the temperature at each recovery point, interpolated with the element shape functions, and LK9 uses it for the thermal strain.
This change made use of various AI tools for portions of identification and implementation. I've reviewed the change myself and believe it's both worthwhile and correct.