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Effect of the heating rate on thermal stresses induced by dilatations
Posted 2 sept. 2014, 03:30 UTC−4 Structural Mechanics Version 4.3a 0 Replies
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I'm trying to modelize the thermal stresses induced in a sandwich structure composed of materials with different coefficients of thermal expansion (CTE). The stresses are induced by the large difference of CTE, during heating.
I would like to study the effect of the heating rate on the thermal stresses (the stresses should be lower with a lower heating rate).
However, the dilatations are always calculated from a reference temperature (Tref=25°C). Even with a time dependant study, the dilatations, at each temperature, are calculated from the reference temperature. Thus, the heating rate is not taken into account.
So, do you know which parameter i have to change to take into account the heating rate in the calculation of the dilatations ? (time dependant Tref....).
Thank you,
Emilien
Hello Emilien Feuillet
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