InitialStrain¶
Type: | 2-Tensor, or section |
---|---|
Range: | [v_1, …, v_9] |
Default: | -/- |
Appearance: | optional |
Specifies the stress free (initial) strain of a body. The strain is dimensionless.
A constant initial strain can be defined by assigning a rank-2 tensor:
# define a constant initial strain
InitialStrain = [..., ... , ...,
..., ... , ...,
..., ... , ...]
For more general cases, an initial strain may be given as a section in order to deal with space, time, and parameter dependent definitions:
# define an initial strain field as a section
InitialStrain {
Coiling {...}
ThermalExpansion {...}
...
}
Field definitions within this section are summed up. Consult the subsequent sections to see which types of field definitions are allowed.