When you use this coupling, you should not use the Thermal Expansion node to compute thermal strains to be used in the Solid Mechanics interface.
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If Enable transformation-induced plasticity is selected, the stress tensor from the Solid Mechanics interface is used to compute TRIP strains during phase transformations. These strains are used by the Solid Mechanics interface as an inelastic strain contribution.
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If Enable thermal strains is selected, the thermal strains are used by the Solid Mechanics interface as an inelastic contribution.
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When you use this coupling, you should not use the Thermal Expansion node to compute thermal strains to be used in the Solid Mechanics interface.
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If Enable phase plasticity is selected, and if the Plasticity subnode under Linear Elastic Material is used by the coupled Solid Mechanics interface, the equivalent plastic strain is transferred to the phase transformation interface. This way, the individual hardening function for each phase can be evaluated.
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