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How to simulate thermal expansion in a 2D plane using FEA?

If the young's modulus is temperature dependent, then when assembling stiffness matrix and computing stresses, do I use the modulus at Tfinal or Tinitial, where ΔT = Tfinal - Tinitial
Karthik Rajan V's user avatar
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Prof Lawrence Shampine's hpde matlab code

There is a zip archive on the Wayback Machine from Shampine’s homepage in 2010:
jdgleeson's user avatar
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