Base AuxKernel class for different failure criteria to update the bond status A bond is broken and the bond_status variable has value of 0, if it meets the given failure criterion. More...

#include <BondStatusBasePD.h>

Inheritance diagram for BondStatusBasePD:

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Public Member Functions
	BondStatusBasePD (const InputParameters &parameters)

Protected Member Functions
virtual Real	computeValue () override

virtual Real	computeFailureCriterionValue ()=0
	Function to compute the value of a given failure criterion. More...

Protected Attributes
MooseVariable *	_bond_status_var
	Bond_status variable. More...

const VariableValue &	_critical_val
	Critical AuxVariable. More...

PeridynamicsMesh &	_pdmesh
	Reference to peridynamic mesh object. More...

const unsigned int	_dim
	Problem dimension. More...

Detailed Description

Base AuxKernel class for different failure criteria to update the bond status A bond is broken and the bond_status variable has value of 0, if it meets the given failure criterion.

If a bond is intact during previous time step and it does not meet the given failure criterion, the bond is taken as intact and the bond_status variable has value of 1.

Definition at line 25 of file BondStatusBasePD.h.

Constructor & Destructor Documentation

◆ BondStatusBasePD()

BondStatusBasePD::BondStatusBasePD ( const InputParameters & parameters )

Definition at line 27 of file BondStatusBasePD.C.

   : AuxKernelBasePD(parameters),
     _bond_status_var(&_subproblem.getStandardVariable(_tid, "bond_status")),
     _critical_val(coupledValue("critical_variable"))
 {
 }

Member Function Documentation

◆ computeFailureCriterionValue()

virtual Real BondStatusBasePD::computeFailureCriterionValue ( )

protectedpure virtual

Function to compute the value of a given failure criterion.

Positive value indicates the critical value is exceeded. Otherwise, the critical value is not reached yet

Returns: failure criterion value

Implemented in RankTwoBasedFailureCriteriaNOSPD, and StretchBasedFailureCriterionPD.

Referenced by computeValue().

◆ computeValue()

Real BondStatusBasePD::computeValue ( )

overrideprotectedvirtual

Definition at line 35 of file BondStatusBasePD.C.

 {
   Real val = 0.0;
  
   if (_bond_status_var->getElementalValue(_current_elem) > 0.5) // unbroken bond
   {
     Real failure_criterion_val = computeFailureCriterionValue();
     if (failure_criterion_val < 0.0) // unmet failure criterion
       val = 1.0;                     // bond is still unbroken
   }
  
   return val;
 }

Member Data Documentation

◆ _bond_status_var

MooseVariable* BondStatusBasePD::_bond_status_var

protected

Bond_status variable.

Definition at line 42 of file BondStatusBasePD.h.

Referenced by computeValue().

◆ _critical_val

const VariableValue& BondStatusBasePD::_critical_val

protected

Critical AuxVariable.

Definition at line 45 of file BondStatusBasePD.h.

Referenced by StretchBasedFailureCriterionPD::computeFailureCriterionValue(), and RankTwoBasedFailureCriteriaNOSPD::computeFailureCriterionValue().

◆ _dim

const unsigned int AuxKernelBasePD::_dim

protectedinherited

Problem dimension.

Definition at line 33 of file AuxKernelBasePD.h.

Referenced by NodalRankTwoPD::computeNodalTotalStrain(), and NodalRankTwoPD::NodalRankTwoPD().

◆ _pdmesh

PeridynamicsMesh& AuxKernelBasePD::_pdmesh

protectedinherited

Reference to peridynamic mesh object.

Definition at line 30 of file AuxKernelBasePD.h.

Referenced by NodalRankTwoPD::computeNodalTotalStrain(), BoundaryOffsetPD::computeValue(), and NodalVolumePD::computeValue().

The documentation for this class was generated from the following files:

peridynamics/include/auxkernels/BondStatusBasePD.h
peridynamics/src/auxkernels/BondStatusBasePD.C

Public Member Functions

Protected Member Functions

Protected Attributes