Mordicus.Modules.Safran.Containers.ConstitutiveLaws.MfrontConstitutiveLaw module

class Mordicus.Modules.Safran.Containers.ConstitutiveLaws.MfrontConstitutiveLaw.MfrontConstitutiveLaw(set)[source]

Bases: ConstitutiveLawBase

Class containing a MfrontConstitutiveLaw

b

mfront behaviour

Type

mgis.behaviour.Behaviour

m

mfront material data manager

Type

mgis.behaviour.MaterialDataManager

density

density of the material

Type

float

constitutiveLawVariables

dictionary with variable names (str) as keys and variables as type

Type

dict

ComputeConstitutiveLaw(temperature, dtemp, stran, dstran, statev)[source]

Main function of the class: computes a new material state using a constitutive law solver from a previous material state and variations of temperature and strain

Parameters

  • temperature (np.ndarray or list) – temperature at the previous state, at integration points (np.ndarray of size (nbIntPoints) or list of length nbIntPoints)

  • dtemp (np.ndarray or list) – variations of temperature between the previous state and the new state to compute, at integration points (np.ndarray of size (nbIntPoints) or list of length nbIntPoints)

  • stran (np.ndarray) – strain at the previous state, at integration points (np.ndarray of size (nbIntPoints,nbeOfDualComponents))

  • dstran (np.ndarray) – variations of strain between the previous state and the new state to compute, at integration points (np.ndarray of size (nbIntPoints,nbeOfDualComponents))

  • statev (np.ndarray) – internal state variables at the previous state, at integration points (np.ndarray of size (nbIntPoints,nbeOfStateVariables))

Returns

  • np.ndarray – of size (nbIntPoints, nbeOfDualComponents, nbeOfDualComponents) ddsdde: local tangent matrix at the new state

  • np.ndarray – of size (nbIntPoints, nbeOfDualComponents) stress: stress at the new state

  • np.ndarray – of size (nbIntPoints, nbeOfStateVariables) statev: internal state variables at the new state

GetConstitutiveLawVariables()[source]
Returns

complete dictionary defining the constitutive law variables

Return type

dict

GetDensity()[source]

Returns the density of the material

Returns

density

Return type

float

GetOneConstitutiveLawVariable(var)[source]

Returns one variable of the constitutive law

Parameters

var (str) – key of the dictionnary for storing the variable (e.g. name of the variable)

Returns

variable of the constitutive law

Return type

custom_data_structure

SetConstitutiveLawVariables(constitutiveLawVariables)[source]

Sets the constitutiveLawVariables dictionary

Parameters

constitutiveLawVariables (dict) – dictionary with variable names (str) as keys and variables as type

SetDensity(density)[source]

Sets the density of the constitutive law

Parameters

density (float) – density of the material

SetLawModelling(hypothesis, behavior, behaviorFile, internalVariables, nbIntPoints)[source]

Sets the density of the constitutive law

Parameters

  • hypothesis (mgis_bv.Hypothesis) – mfront hypothesis

  • behavior (mgis.behaviour.Behaviour) – mfront behaviour

  • behaviorFile (string) – path to compiled mfront behavior file (.so)

  • internalVariables (list of strings) – list of the name of the internal variables modeling the constitutive law

  • nbIntPoints (int) – number of integration points, where the constitutive law is modeled

SetOneConstitutiveLawVariable(var, value)[source]

Sets one variable of the constitutive law

Parameters

  • var (str) – name of the variable

  • value (custom_data_structure) – variable of the constitutive law

UpdateInternalState()[source]

Updates the state of the internal variables