chrono::ChContinuumPlasticVonMises Class Reference

#include <CHcontinuumMaterial.h>

Inheritance diagram for chrono::ChContinuumPlasticVonMises:

Collaboration diagram for chrono::ChContinuumPlasticVonMises:

List of all members.

Public Member Functions
	ChContinuumPlasticVonMises (double myoung=10000000, double mpoisson=0.4, double mdensity=1000, double melastic_yeld=0.1, double mplastic_yeld=0.2)
void	Set_elastic_yeld (double melastic_yeld)
double	Get_elastic_yeld ()
void	Set_plastic_yeld (double mplastic_yeld)
double	Get_plastic_yeld ()
void	Set_flow_rate (double mflow_rate)
double	Get_flow_rate ()
virtual double	ComputeYeldFunction (const ChStressTensor<> &mstress) const
virtual void	ComputeReturnMapping (ChStrainTensor<> &mplasticstrainflow, const ChStrainTensor<> &mincrementstrain, const ChStrainTensor<> &mlastelasticstrain, const ChStrainTensor<> &mlastplasticstrain) const
void	ComputePlasticStrainFlow (ChStrainTensor<> &mplasticstrainflow, const ChStrainTensor<> &mestrain) const
void	StreamIN (ChStreamInBinary &mstream)
void	StreamOUT (ChStreamOutBinary &mstream)

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Detailed Description

Class for the basic properties of materials in an elastoplastic continuum, with strain yeld limit based on Von Mises yeld

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Constructor & Destructor Documentation

chrono::ChContinuumPlasticVonMises::ChContinuumPlasticVonMises	(	double	myoung = 10000000,
		double	mpoisson = 0.4,
		double	mdensity = 1000,
		double	melastic_yeld = 0.1,
		double	mplastic_yeld = 0.2
	)

Create a continuum isothropic elastoplastic material, where you can define also plastic and elastic max. stress (yeld limits for transition elastic->blastic and plastic->fracture).

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Member Function Documentation

void chrono::ChContinuumPlasticVonMises::ComputePlasticStrainFlow	(	ChStrainTensor<> &	mplasticstrainflow,
		const ChStrainTensor<> &	mestrain
	)		const [virtual]

Compute plastic strain flow (flow derivative dE_plast/dt) from strain, according to VonMises strain yeld theory.

Implements chrono::ChContinuumElastoplastic.

void chrono::ChContinuumPlasticVonMises::ComputeReturnMapping	(	ChStrainTensor<> &	mplasticstrainflow,
		const ChStrainTensor<> &	mincrementstrain,
		const ChStrainTensor<> &	mlastelasticstrain,
		const ChStrainTensor<> &	mlastplasticstrain
	)		const [virtual]

Correct the strain-stress by enforcing that elastic stress must remain on the yeld surface, computing a plastic flow to be added to plastic strain while integrating.

Implements chrono::ChContinuumElastoplastic.

void chrono::ChContinuumPlasticVonMises::Set_elastic_yeld

(

double

melastic_yeld

)

Set the elastic yeld modulus as the maximum VonMises equivalent strain that can be withstood by material before starting plastic flow. It defines the transition elastic->plastic.

void chrono::ChContinuumPlasticVonMises::Set_flow_rate

(

double

mflow_rate

)

[virtual]

Set the plastic flow rate. The lower the value, the slower the plastic flow during dynamic simulations.

Implements chrono::ChContinuumElastoplastic.

void chrono::ChContinuumPlasticVonMises::Set_plastic_yeld

(

double

mplastic_yeld

)

Set the plastic yeld modulus as the maximum VonMises equivalent strain that can be withstood by material before fracture. It defines the transition plastic->fracture.

void chrono::ChContinuumPlasticVonMises::StreamIN

(

ChStreamInBinary &

mstream

)

Method to allow deserializing a persistent binary archive (ex: a file) into transient data.

Reimplemented from chrono::ChContinuumElastic.

void chrono::ChContinuumPlasticVonMises::StreamOUT

(

ChStreamOutBinary &

mstream

)

Method to allow serializing transient data into a persistent binary archive (ex: a file).

Reimplemented from chrono::ChContinuumElastic.