The Adiabatic Heating node adds the equations for adiabatic heating in layered shells caused by abrupt changes in temperature due to fast deformation.
where ρ is the density,
Cp is the heat capacity at constant pressure,
T is the temperature field,
βah is the coefficient of adiabatic heating, and
Qh corresponds to the heat sources due to mechanical dissipative processes.
If the Composite Materials Module is available, adiabatic heating can be applied to arbitrary layers. The material properties, orientations, and layer thicknesses are defined using Layered Material node. The offset, and local coordinate system, in which material orientations and results are interpreted, is defined by
Layered Material Link or
Layered Material Stack node.
Enter the Initial temperature Tini. The default value is 293.15 K.
The default Heat capacity at constant pressure Cp uses values
From material. For
User defined, enter an expression or value. The default value for the
User defined is
0 J/(kg·K).
Enter the Coefficient of adiabatic heating,
βah. The default value is 1 (dimensionless), which means that dissipative processes contribute 100% as heat sources.
The Dissipative heat source list makes it possible to include specific heat sources for the adiabatic heating. Enter a value or expression for the heat source
Qh to include. For instance, the dissipated energy density due to creep is available under the variable
shell.Wc and due to viscoplasticity under the variable
shell.Wvp. Here
solid denotes the name of the physics interface node.
The Backward Euler method is not available with the Layered Shell interface neither with the Layered Linear Elastic Material nor the Layered Hyperelastic Material in the Shell and Membrane interfaces.
No settings are needed for the Domain ODEs method. However, this method adds degrees-of-freedom that are solved as part of the general solver sequence. The scaling of this field can affect the convergence of the overall solution.