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SolidMechanicsPlasticWeakPlaneShear.h
Go to the documentation of this file.
1//* This file is part of the MOOSE framework
2//* https://mooseframework.inl.gov
3//*
4//* All rights reserved, see COPYRIGHT for full restrictions
5//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
6//*
7//* Licensed under LGPL 2.1, please see LICENSE for details
8//* https://www.gnu.org/licenses/lgpl-2.1.html
9
10#pragma once
11
14
20{
21public:
23
25
26 virtual void activeConstraints(const std::vector<Real> & f,
27 const RankTwoTensor & stress,
28 Real intnl,
29 const RankFourTensor & Eijkl,
30 std::vector<bool> & act,
31 RankTwoTensor & returned_stress) const override;
32
33 virtual std::string modelName() const override;
34
35protected:
38
41
44
45 Real yieldFunction(const RankTwoTensor & stress, Real intnl) const override;
46
47 RankTwoTensor dyieldFunction_dstress(const RankTwoTensor & stress, Real intnl) const override;
48
49 Real dyieldFunction_dintnl(const RankTwoTensor & stress, Real intnl) const override;
50
51 RankTwoTensor flowPotential(const RankTwoTensor & stress, Real intnl) const override;
52
53 RankFourTensor dflowPotential_dstress(const RankTwoTensor & stress, Real intnl) const override;
54
55 RankTwoTensor dflowPotential_dintnl(const RankTwoTensor & stress, Real intnl) const override;
56
66
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72
75
77 RankTwoTensor df_dsig(const RankTwoTensor & stress, Real _tan_phi_or_psi) const;
78
80 virtual Real smooth(const RankTwoTensor & stress) const;
81
83 virtual Real dsmooth(const RankTwoTensor & stress) const;
84
86 virtual Real d2smooth(const RankTwoTensor & stress) const;
87
89 virtual Real cohesion(const Real internal_param) const;
90
92 virtual Real dcohesion(const Real internal_param) const;
93
95 virtual Real tan_phi(const Real internal_param) const;
96
98 virtual Real dtan_phi(const Real internal_param) const;
99
101 virtual Real tan_psi(const Real internal_param) const;
102
104 virtual Real dtan_psi(const Real internal_param) const;
105};
Real f(Real x)
Test function for Brents method.
const InputParameters & parameters() const
Plastic Model base class The virtual functions written below must be over-ridden in derived classes t...
Rate-independent associative weak-plane tensile failure with hardening/softening.
virtual Real d2smooth(const RankTwoTensor &stress) const
returns the d^2a/dstress(2,2)^2 - see doco for _tip_scheme
virtual Real dtan_psi(const Real internal_param) const
d(tan_psi)/d(internal_param);
virtual Real smooth(const RankTwoTensor &stress) const
returns the 'a' parameter - see doco for _tip_scheme
Real _cap_start
smoothing parameter dictating when the 'cap' will start - see doco for _tip_scheme
RankTwoTensor df_dsig(const RankTwoTensor &stress, Real _tan_phi_or_psi) const
Function that's used in dyieldFunction_dstress and flowPotential.
virtual Real cohesion(const Real internal_param) const
cohesion as a function of internal parameter
virtual Real tan_phi(const Real internal_param) const
tan_phi as a function of internal parameter
RankTwoTensor flowPotential(const RankTwoTensor &stress, Real intnl) const override
The flow potential.
Real dyieldFunction_dintnl(const RankTwoTensor &stress, Real intnl) const override
The derivative of yield function with respect to the internal parameter.
const SolidMechanicsHardeningModel & _cohesion
Hardening model for cohesion.
RankTwoTensor dyieldFunction_dstress(const RankTwoTensor &stress, Real intnl) const override
The derivative of yield function with respect to stress.
RankFourTensor dflowPotential_dstress(const RankTwoTensor &stress, Real intnl) const override
The derivative of the flow potential with respect to stress.
virtual Real dsmooth(const RankTwoTensor &stress) const
returns the da/dstress(2,2) - see doco for _tip_scheme
virtual void activeConstraints(const std::vector< Real > &f, const RankTwoTensor &stress, Real intnl, const RankFourTensor &Eijkl, std::vector< bool > &act, RankTwoTensor &returned_stress) const override
The active yield surfaces, given a vector of yield functions.
Real _cap_rate
dictates how quickly the 'cap' degenerates to a hemisphere - see doco for _tip_scheme
const SolidMechanicsHardeningModel & _tan_phi
Hardening model for tan(phi)
virtual Real dcohesion(const Real internal_param) const
d(cohesion)/d(internal_param)
Real _small_smoother2
smoothing parameter for the cone's tip - see doco for _tip_scheme
Real yieldFunction(const RankTwoTensor &stress, Real intnl) const override
The following functions are what you should override when building single-plasticity models.
RankTwoTensor dflowPotential_dintnl(const RankTwoTensor &stress, Real intnl) const override
The derivative of the flow potential with respect to the internal parameter.
MooseEnum _tip_scheme
The yield function is modified to f = sqrt(s_xz^2 + s_yz^2 + a) + s_zz*_tan_phi - _cohesion where "a"...
virtual Real tan_psi(const Real internal_param) const
tan_psi as a function of internal parameter
virtual Real dtan_phi(const Real internal_param) const
d(tan_phi)/d(internal_param);
const SolidMechanicsHardeningModel & _tan_psi
Hardening model for tan(psi)