EDSHELL, WPAN, SHNU, SHTC, WPBT, SHPL, ITRST
Specifies shell computation controls for an explicit dynamics
analysis.
WPANMaximum shell element warpage angle in degrees. Defaults to 20.
SHNUHughes-Liu shell normal update option:
-2 | — | Unique nodal fibers. This option is required for SHELL163 (KEYOPT(1) = 1, 6, or 7) if the real constant NLOC = 1 or -1. |
-1 | — | Compute normals each cycle (default). This option is recommended. |
1 | — | Compute on restarts. |
| — | Compute
every |
SHTCShell thickness change option:
0 | — | No change. |
1 | — | Membrane straining causes thickness change. Important in sheet metal forming (default). |
WPBTWarping stiffness option for Belytschko-Tsay shells:
1 | — | Belytschko-Wong-Chiang warping stiffness added. This option is recommended. |
2 | — | Belytschko-Tsay warping stiffness (default). |
SHPLShell plasticity option. This option is only valid for these material models: strain rate independent plastic kinematic, strain rate dependent plasticity, power law plasticity, and piecewise linear plasticity.
1 | — | Iterative plasticity with 3 secant iterations (default). |
2 | — | Full iterative plasticity. |
3 | — | Radial return noniterative plasticity. (Use this option with caution; it may lead to inaccurate results.) |
ITRSTTriangular shell sorting option. If sorting is on, degenerate quadrilateral shell elements are treated as triangular shells.
1 | — | Full sorting (default). |
2 | — | No sorting. |