Hi, with the new versions of ANSYS 2022 and above, you can bing the dynain file which has the prestress data but this is corrsponding to lsdyna to lsdyna, however, you can export the deformed shap and export the stress at last time step and use external data to map into LSDYNA. but recent update will allow you to read the dynain.k file into structural analysis via mechanical model.
Cheers, Ram
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