Are there any tools available that specifically address material calibration for Thermal Mechanical Fatigue (TMF) applications?
March 17, 2023 at 9:00 amFAQParticipant
The short answer is that WB-Additive does not account for phase change between solid and liquid phases. There is no enthalpy vs temperature property used in the transient thermal. In the static structural run , we set a new layer, which is already solid, then allow it cool between layers. If a user wants to set the new layer temperature to a higher value, the liquid-solid phase change can be captured, but the user would need to update the material properties to capture that. Our sample properties generally do not go into that range. This could be accomplished more vigorously with state variables and UPFs. Having said that, we do offer a “relaxation” temperature (TRELAX) field as part of the AMMAT command at which the past history is lost (plastic strains reset to zero): AMMAT, MATPART, TMELT, TRELAX This might give you a result that is close enough, but you would have to validate it.
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