StaticStep

class compas_fea2.problem.StaticStep[source]

Bases: GeneralStep

StaticStep for use in a static analysis.

Parameters:

max_incrementsint: Max number of increments to perform during the case step. (Typically 100 but you might have to increase it in highly non-linear problems. This might increase the analysis time.).
initial_inc_sizefloat: Sets the the size of the increment for the first iteration. (By default is equal to the total time, meaning that the software decrease the size automatically.)
min_inc_sizefloat: Minimum increment size before stopping the analysis. (By default is 1e-5, but you can set a smaller size for highly non-linear problems. This might increase the analysis time.)
timefloat: Total time of the case step. Note that this not actual ‘time’, but rather a proportionality factor. (By default is 1, meaning that the analysis is complete when all the increments sum up to 1)
nlgeombool: if True nonlinear geometry effects are considered.
modifybool: if True the loads applied in a previous step are substituted by the ones defined in the present step, otherwise the loads are added.

Attributes:

namestr: Automatically generated id. You can change the name if you want a more human readable input file.
max_incrementsint: Return the maximum number of increments for the step.
initial_inc_sizefloat: Return the initial increment size for the step.
min_inc_sizefloat: Return the minimum increment size for the step.
timefloat: Return the total time for the step.
nlgeombool: Return whether nonlinear geometry effects are considered in the step.
modifybool: Return whether the loads are modified in the step.
loadsdict: Return the loads associated with the step.
displacementsdict: Return the displacements associated with the step.

Inherited Methods

`ToString`	Converts the instance to a string.
`add_combination`	Add a combination to the Step.
`add_field`	Add a general `compas_fea2.problem.patterns.Pattern` to the Step.
`add_field_output`	Add a field output to the step. Parameters ---------- field_output : `compas_fea2.problem.fields.FieldType` The field output to add. Returns ------- `compas_fea2.problem.fields.FieldType`.
`add_field_outputs`	Add multiple field outputs to the step. Parameters ---------- field_outputs : list(`compas_fea2.problem.fields.FieldType`) The field outputs to add to the step. Returns ------- list(`compas_fea2.problem.fields.FieldType`).
`add_gravity_field`	Add a `compas_fea2.problem.GravityLoad` load to the `Step`
`add_load_fields`	Add multiple `compas_fea2.problem.patterns.Pattern` to the Problem.
`add_surface_field`	Add a `compas_fea2.problem.PointLoad` subclass object to the `Step` along a prescribed path.
`add_temperature_field`	Add a temperature field to the Step object.
`add_uniform_displacement_field`	Add a uniform displacement field to the Step object.
`add_uniform_forcefield`	Add a `compas_fea2.problem.fields.NodeLoadField` where all the nodes have the same load.
`add_uniform_forcefield_from_polygon`
`add_uniform_line_field`	Add a `compas_fea2.problem.field.NodeLoadField` subclass object to the `Step` along a prescribed path.
`copy`	Make an independent copy of the data object.
`from_json`	Construct an object of this type from a JSON file.
`from_jsonstring`	Construct an object of this type from a JSON string.
`sha256`	Compute a hash of the data for comparison during version control using the sha256 algorithm.
`to_json`	Convert an object to its native data representation and save it to a JSON file.
`to_jsonstring`	Convert an object to its native data representation and save it to a JSON string.
`validate_data`	Validate the data against the object's data schema.