problem

Problem

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

`Step`	Initialises base Step object.
`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.

`_PrescribedField`	Base class for all predefined initial conditions.
`PrescribedTemperatureField`	Temperature field

`Load`	Initialises base Load object.
`PrestressLoad`	Prestress load
`GravityLoad`	Gravity load [units:N/m3] applied to element(s).
`TributaryLoad`	Tributary load
`HarmonicPointLoad`
`HarmonicPressureLoad`
`ThermalLoad`	Thermal load

Load combination used to combine load fields together at each step.

GeneralDisplacement object.