The StaticRiksStep object is used to indicate that the step should be analyzed as a static load step using the modified Riks method for proportional loading cases.
The StaticRiksStep object is derived from the AnalysisStep object.
import step mdb.models[name].steps[name]
This method creates a StaticRiksStep object.
mdb.models[name].StaticRiksStep
Required arguments
A String specifying the repository key.
A String specifying the name of the previous step. The new step appears after this step in the list of analysis steps.
Optional arguments
A String specifying a description of the new step. The default value is an empty string.
A Boolean specifying whether to allow for geometric nonlinearity. The default value is OFF.
A Boolean specifying whether to perform an adiabatic stress analysis. The default value is OFF.
None or a Float specifying the maximum value of the load proportionality factor. The default value is None.
A Boolean specifying whether to monitor the finishing displacement value at a node. The default value is OFF.
A Float specifying the value of the total displacement (or rotation) at the node and degree of freedom that, if crossed during an increment, ends the step at the current increment. This argument is required when nodeOn=ON. The default value is 0.0.
An Int specifying the degree of freedom being monitored. This argument is required when nodeOn=ON. The default value is 0.
A Region object specifying the vertex at which the finishing displacement value is being monitored. This argument is required when nodeOn=ON.
A SymbolicConstant specifying the time incrementation method to be used. Possible values are FIXED and AUTOMATIC. The default value is AUTOMATIC.
An Int specifying the maximum number of increments in a step. The default value is 100.
A Float specifying the total load proportionality factor associated with the load in this step. The default value is 1.0.
A Float specifying the initial load proportionality factor. The default value is the total load proportionality factor for the step.
A Float specifying the minimum arc length increment allowed. The default value is the smaller of the suggested initial load proportionality factor or 10–5 times the total load proportionality factor for the step.
A Float specifying the maximum arc length increment allowed. The default value is the total load proportionality factor for the step.
A SymbolicConstant specifying the type of matrix storage. Possible values are SYMMETRIC, UNSYMMETRIC, and SOLVER_DEFAULT. The default value is SOLVER_DEFAULT.
A SymbolicConstant specifying the type of extrapolation to use in determining the incremental solution for a nonlinear analysis. Possible values are NONE, LINEAR, and PARABOLIC. The default value is LINEAR.
A String specifying the name of the region being monitored for fully plastic behavior. The default value is an empty string.
A Boolean specifying whether to accept the solution to an increment after the maximum number of iterations allowed have been completed, even if the equilibrium tolerances are not satisfied. The default value is OFF.
Warning: You should set noStop=ON only in special cases when you have a thorough understanding of how to interpret the results.
A Boolean specifying whether to retain attributes from an existing step with the same name. The default value is False.
A Boolean specifying wether to obtain the fully relaxed long-term elastic solution with time-domain viscoelasticity or the long-term elastic-plastic solution for two-layer viscoplasticity. The default value is OFF.
A SymbolicConstant specifying whether to force a new iteration if severe discontinuities occur during an iteration. Possible values are PROPAGATED, CONVERT_SDI_OFF, and CONVERT_SDI_ON. The default value is PROPAGATED.
Return value
A StaticRiksStep object.
Exceptions
RangeError.
This method modifies the StaticRiksStep object.
Required arguments
Optional arguments
The optional arguments to setValues are the same as the arguments to the StaticRiksStep method, except for the name, previous, and maintainAttributes arguments.
Return value
Exceptions
RangeError.
The StaticRiksStep object can have the following members:
A String specifying the repository key.
A Boolean specifying whether to allow for geometric nonlinearity. The default value is OFF.
A Boolean specifying whether to perform an adiabatic stress analysis. The default value is OFF.
None or a Float specifying the maximum value of the load proportionality factor. The default value is None.
A Boolean specifying whether to monitor the finishing displacement value at a node. The default value is OFF.
A Float specifying the value of the total displacement (or rotation) at the node and degree of freedom that, if crossed during an increment, ends the step at the current increment. This argument is required when nodeOn=ON. The default value is 0.0.
An Int specifying the degree of freedom being monitored. This argument is required when nodeOn=ON. The default value is 0.
A SymbolicConstant specifying the time incrementation method to be used. Possible values are FIXED and AUTOMATIC. The default value is AUTOMATIC.
An Int specifying the maximum number of increments in a step. The default value is 100.
A Float specifying the total load proportionality factor associated with the load in this step. The default value is 1.0.
A Float specifying the initial load proportionality factor. The default value is the total load proportionality factor for the step.
A Float specifying the minimum arc length increment allowed. The default value is the smaller of the suggested initial load proportionality factor or 10–5 times the total load proportionality factor for the step.
A Float specifying the maximum arc length increment allowed. The default value is the total load proportionality factor for the step.
A SymbolicConstant specifying the type of matrix storage. Possible values are SYMMETRIC, UNSYMMETRIC, and SOLVER_DEFAULT. The default value is SOLVER_DEFAULT.
A SymbolicConstant specifying the type of extrapolation to use in determining the incremental solution for a nonlinear analysis. Possible values are NONE, LINEAR, and PARABOLIC. The default value is LINEAR.
A Boolean specifying whether to accept the solution to an increment after the maximum number of iterations allowed have been completed, even if the equilibrium tolerances are not satisfied. The default value is OFF.
Warning: You should set noStop=ON only in special cases when you have a thorough understanding of how to interpret the results.
A Boolean specifying wether to obtain the fully relaxed long-term elastic solution with time-domain viscoelasticity or the long-term elastic-plastic solution for two-layer viscoplasticity. The default value is OFF.
A SymbolicConstant specifying whether to force a new iteration if severe discontinuities occur during an iteration. Possible values are PROPAGATED, CONVERT_SDI_OFF, and CONVERT_SDI_ON. The default value is PROPAGATED.
A String specifying the name of the previous step. The new step appears after this step in the list of analysis steps.
A String specifying a description of the new step. The default value is an empty string.
A String specifying the name of the region being monitored for fully plastic behavior. The default value is an empty string.
A Region object specifying the vertex at which the finishing displacement value is being monitored. This argument is required when nodeOn=ON.
A SymbolicConstant specifying whether the step has an explicit procedure type (procedureType=ANNEAL, DYNAMIC_EXPLICIT, or DYNAMIC_TEMP_DISPLACEMENT).
A Boolean specifying whether the step has a perturbation procedure type.
A Boolean specifying whether the step has a mechanical procedure type.
A SymbolicConstant specifying the Abaqus procedure. Possible values are:
ANNEAL
BUCKLE
COMPLEX_FREQUENCY
COUPLED_TEMP_DISPLACEMENT
COUPLED_THERMAL_ELECTRIC
DIRECT_CYCLIC
DYNAMIC_IMPLICIT
DYNAMIC_EXPLICIT
DYNAMIC_SUBSPACE
DYNAMIC_TEMP_DISPLACEMENT
COUPLED_THERMAL_ELECTRICAL_STRUCTURAL
FLOW
FREQUENCY
GEOSTATIC
HEAT_TRANSFER
MASS_DIFFUSION
MODAL_DYNAMICS
RANDOM_RESPONSE
RESPONSE_SPECTRUM
SOILS
STATIC_GENERAL
STATIC_LINEAR_PERTURBATION
STATIC_RIKS
STEADY_STATE_DIRECT
STEADY_STATE_MODAL
STEADY_STATE_SUBSPACE
VISCO
A Boolean specifying whether the step is suppressed or not. The default value is OFF.
A repository of FieldOutputRequestState objects.
A repository of HistoryOutputRequestState objects.
A DiagnosticPrint object.
A Monitor object.
A Restart object.
A repository of AdaptiveMeshConstraintState objects.
A repository of AdaptiveMeshDomain objects.
A Control object.
A SolverControl object.
A repository of BoundaryConditionState objects.
A repository of InteractionState objects.
A repository of LoadState objects.
A repository of LoadCase objects.
A repository of PredefinedFieldState objects.