problem

Problem

A Problem is a collection of analysis steps (:class:`compas_fea2.problem._Step) applied in a specific sequence.

`GeneralStep`	General Step object for use as a base class in a general static, dynamic or multiphysics analysis.
`_Perturbation`	A perturbation is a change of the state of the structure after an analysis step.
`ModalAnalysis`	Perform a modal analysis of the Model from the resulting state after an analysis Step.
`ComplexEigenValue`
`StaticStep`	StaticStep for use in a static analysis.
`LinearStaticPerturbation`
`BucklingAnalysis`
`DynamicStep`	Step for dynamic analysis.
`QuasiStaticStep`	Step for quasi-static analysis.
`DirectCyclicStep`	Step for a direct cyclic analysis.

General imposed displacement.