chrono::ChContinuumElastoplastic Class Reference

#include <CHcontinuumMaterial.h>

Inheritance diagram for chrono::ChContinuumElastoplastic:

Collaboration diagram for chrono::ChContinuumElastoplastic:

List of all members.

Public Member Functions
	ChContinuumElastoplastic (double myoung=10000000, double mpoisson=0.4, double mdensity=1000)
virtual double	ComputeYeldFunction (const ChStressTensor<> &mstress) const =0
virtual void	ComputePlasticStrainFlow (ChStrainTensor<> &mplasticstrainflow, const ChStrainTensor<> &mtotstrain) const =0
virtual void	ComputeReturnMapping (ChStrainTensor<> &mplasticstrainflow, const ChStrainTensor<> &mincrementstrain, const ChStrainTensor<> &mlastelasticstrain, const ChStrainTensor<> &mlastplasticstrain) const =0
virtual void	Set_flow_rate (double mflow_rate)=0
virtual double	Get_flow_rate ()=0

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Detailed Description

Class for all elastic materials that can undergo plastic flow Defines simply some interface functions.

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Member Function Documentation

virtual void chrono::ChContinuumElastoplastic::ComputePlasticStrainFlow	(	ChStrainTensor<> &	mplasticstrainflow,
		const ChStrainTensor<> &	mtotstrain
	)		const [pure virtual]

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

Implemented in chrono::ChContinuumDruckerPrager, and chrono::ChContinuumPlasticVonMises.

virtual void chrono::ChContinuumElastoplastic::ComputeReturnMapping	(	ChStrainTensor<> &	mplasticstrainflow,
		const ChStrainTensor<> &	mincrementstrain,
		const ChStrainTensor<> &	mlastelasticstrain,
		const ChStrainTensor<> &	mlastplasticstrain
	)		const [pure 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.

Implemented in chrono::ChContinuumDruckerPrager, and chrono::ChContinuumPlasticVonMises.

virtual void chrono::ChContinuumElastoplastic::Set_flow_rate

(

double

mflow_rate

)

[pure virtual]

Set the plastic flow rate, i.e. the 'creep' speed. The lower the value, the slower the plastic flow during dynamic simulations, with delayed plasticity.

Implemented in chrono::ChContinuumDruckerPrager, and chrono::ChContinuumPlasticVonMises.