struct.shell.beta
Syntax
- f := struct.shell.beta(p)
- struct.shell.beta(p) := f
Get/set shell-type material system beta angle. This is defined as the angle between the element local system \(x\)-axis and the material system \(x\)-axis. In radians measured counter-clockwise from the element local \(x\)-axis.
Modifying the stiffness of an element can result in instability if done during cycling. Dependent values should be forced to update using
struct.force.update
. See the documentation ofstruct.force.update
for comments on the cost.Returns: f - the shell material system beta angle in radians Accepts: f - the shell material system beta angle in radians Arguments: p - a pointer to a shell element
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