mgis::behaviour::FiniteStrainBehaviourOptions Struct Reference

option available for finite strain behaviours More...

#include </home/runner/work/MFrontGenericInterfaceSupport/MFrontGenericInterfaceSupport/include/MGIS/Behaviour/FiniteStrainBehaviourOptions.hxx>

Public Types
enum	StressMeasure { CAUCHY , PK2 , PK1 }
	stress measure requested for finite strain behaviours More...
enum	TangentOperator { DSIG_DF , DS_DEGL , DPK1_DF , DTAU_DDF }
	type of finite strain tangent operator requested for finite strain behaviours More...

Public Attributes
enum mgis::behaviour::FiniteStrainBehaviourOptions::StressMeasure	stress_measure = CAUCHY
enum mgis::behaviour::FiniteStrainBehaviourOptions::TangentOperator	tangent_operator = DSIG_DF

Detailed Description

option available for finite strain behaviours

Member Enumeration Documentation

StressMeasure

enum mgis::behaviour::FiniteStrainBehaviourOptions::StressMeasure

stress measure requested for finite strain behaviours

The first Piola-Kirchhoff stress \(P\) is related to the Cauchy stress \(\sigma\) by: \f[ P = J \,\cdot\,\sigma\,F^{-T} \f] where \f(F\) is the deformation gradient and \(J\) its determinant.

Note

some authors use a different convention to define the first Piola-Kirchhoff stress using the transpose of \(P\)

Enumerator
CAUCHY	Cauchy stress.
PK2	Second Piola-Kirchhoff stress.
PK1	First Piola-Kirchhoff stress.

TangentOperator

enum mgis::behaviour::FiniteStrainBehaviourOptions::TangentOperator

type of finite strain tangent operator requested for finite strain behaviours

Enumerator
DSIG_DF	derivative of the Cauchy stress with respect to the deformation gradient
DS_DEGL	derivative of the second Piola-Kirchoff stress with respect to the Green-Lagrange strain
DPK1_DF	derivative of the first Piola-Kirchoff stress with respect to the deformation gradient
DTAU_DDF	derivative of the Kirchoff stress with respect to the spatial increment of the deformation gradient

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The documentation for this struct was generated from the following file:

• FiniteStrainBehaviourOptions.hxx