Defines the reference temperature for the thermal strain calculations in structural analyses. Thermal strains are given by a *(T-TREF), as explained in Section 2.1 of the ANSYS Theory Reference, where a is the coefficient of thermal expansion material property and T is the element temperature. Units should be consistent with a .
Reference temperatures may also be input per material by using the label REFT on the material property [MP] command, such as MP,REFT,MAT,C0. Only a constant (non-temperature-dependent) value is allowed. The value input on the TREF command applies to all materials not having a specified material property definition.
HELP里的说明,与延展率相关,strain= a *(T-TREF)也可通过材料属性编辑。 不知道你材料属性给出到什么程度。
材料各种属性随温度变化线性/非线性,属性与温度对应,当然影响了。