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SolidMechanicsPlasticTensile.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
28{
29public:
31
33
34 virtual std::string modelName() const override;
35
36protected:
37 Real yieldFunction(const RankTwoTensor & stress, Real intnl) const override;
38
39 RankTwoTensor dyieldFunction_dstress(const RankTwoTensor & stress, Real intnl) const override;
40
41 Real dyieldFunction_dintnl(const RankTwoTensor & stress, Real intnl) const override;
42
43 RankTwoTensor flowPotential(const RankTwoTensor & stress, Real intnl) const override;
44
45 RankFourTensor dflowPotential_dstress(const RankTwoTensor & stress, Real intnl) const override;
46
47 RankTwoTensor dflowPotential_dintnl(const RankTwoTensor & stress, Real intnl) const override;
48
50
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63
66
69
71 Real _tt;
72
74 Real _sin3tt;
75
78
80 Real _ccc;
81
83 Real _bbb;
84
86 Real _aaa;
87
89 virtual Real smooth(const RankTwoTensor & stress) const;
90
92 virtual Real dsmooth(const RankTwoTensor & stress) const;
93
95 virtual Real d2smooth(const RankTwoTensor & stress) const;
96
98 virtual Real tensile_strength(const Real internal_param) const;
99
101 virtual Real dtensile_strength(const Real internal_param) const;
102};
const InputParameters & parameters() const
Plastic Model base class The virtual functions written below must be over-ridden in derived classes t...
FiniteStrainTensile implements rate-independent associative tensile failure with hardening/softening ...
Real dyieldFunction_dintnl(const RankTwoTensor &stress, Real intnl) const override
The derivative of yield function with respect to the internal parameter.
Real _lode_cutoff
if secondInvariant < _lode_cutoff then set Lode angle to zero. This is to guard against precision-los...
Real _aaa
Abbo et al's A parameter.
Real _small_smoother2
Square of tip smoothing parameter to smooth the cone at mean_stress = T.
virtual Real dtensile_strength(const Real internal_param) const
d(tensile strength)/d(internal_param) as a function of residual value, rate, and internal_param
virtual Real dsmooth(const RankTwoTensor &stress) const
returns the da/dstress_mean - see doco for _tip_scheme
Real _sin3tt
sin(3*_tt) - useful for making comparisons with Lode angle
virtual Real d2smooth(const RankTwoTensor &stress) const
returns the d^2a/dstress_mean^2 - 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.
MooseEnum _tip_scheme
The yield function is modified to f = s_m + sqrt(a + s_bar^2 K^2) - tensile_strength where "a" depend...
RankFourTensor dflowPotential_dstress(const RankTwoTensor &stress, Real intnl) const override
The derivative of the flow potential with respect to stress.
Real _cap_start
smoothing parameter dictating when the 'cap' will start - see doco for _tip_scheme
virtual Real smooth(const RankTwoTensor &stress) const
returns the 'a' parameter - see doco for _tip_scheme
Real _bbb
Abbo et al's B parameter.
Real _ccc
Abbo et al's C parameter.
RankTwoTensor dflowPotential_dintnl(const RankTwoTensor &stress, Real intnl) const override
The derivative of the flow potential with respect to the internal parameter.
Real _tt
edge smoothing parameter, in radians
RankTwoTensor flowPotential(const RankTwoTensor &stress, Real intnl) const override
The flow potential.
const SolidMechanicsHardeningModel & _strength
RankTwoTensor dyieldFunction_dstress(const RankTwoTensor &stress, Real intnl) const override
The derivative of yield function with respect to stress.
virtual std::string modelName() const override
virtual Real tensile_strength(const Real internal_param) const
tensile strength as a function of residual value, rate, and internal_param
Real _cap_rate
dictates how quickly the 'cap' degenerates to a hemisphere - see doco for _tip_scheme