Thermal-displacement coupled analysis UMAT
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Dear all,
I am doing a sequentially coupled thermal-displacement analysis. an ODB file is used as prefiled to define thermal load and then a UMAT is used.
My question is how to generate DSTRAN with TEMP (coefficient of expansion is known）
My code is the following, but i think it does not work.
DO K1=1,NTENS
DSTRAN(K1)=(TEMP-LASTEMP)*0.00108
END DO
LASTEMP is temperature of last step.0.00108 is coefficient of thermal expansion