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A value or expression for the Volume reference temperature Tref that is the temperature at which there are no thermal displacements at the constraints.
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A value or expression for Temperature T, specifying the temperature distribution of the surrounding material. Any temperature variation must be an explicit function of the material frame coordinates. It is not possible to use a computed temperature distribution.
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Select the Input type — Secant coefficient of thermal expansion, Tangent coefficient of thermal expansion, or Thermal strain to specify how the thermal strain is entered. The default values From material are used. This requires that a material has been assigned to the boundaries, edges, or points where the constraint is active. When a nonisotropic coefficient of thermal expansion is used, the axis orientations are given by the coordinate system selected in the Coordinate System Selection section.
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