Line data    Source code

       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             : 
      12             : #include "CappedWeakPlaneStressUpdate.h"
      13             : 
      14             : /**
      15             :  * CappedWeakInclinedPlaneStressUpdate performs the return-map
      16             :  * algorithm and associated stress updates for plastic
      17             :  * models that describe capped weak-plane plasticity
      18             :  *
      19             :  * It assumes various things about the elasticity tensor, viz
      20             :  * in the frame where the weak-plane's normal direction is the
      21             :  * "2" direction:
      22             :  * E(i,i,j,k) = 0 except if k=j
      23             :  * E(0,0,i,j) = E(1,1,i,j)
      24             :  */
      25             : class CappedWeakInclinedPlaneStressUpdate : public CappedWeakPlaneStressUpdate
      26             : {
      27             : public:
      28             :   static InputParameters validParams();
      29             : 
      30             :   CappedWeakInclinedPlaneStressUpdate(const InputParameters & parameters);
      31             : 
      32             :   /**
      33             :    * Does the model require the elasticity tensor to be isotropic?
      34             :    */
      35          54 :   bool requiresIsotropicTensor() override { return false; }
      36             : 
      37             : protected:
      38             :   virtual void initQpStatefulProperties() override;
      39             : 
      40             :   /// User-input value of the normal vector to the weak plane
      41             :   RealVectorValue _n_input;
      42             : 
      43             :   /// Current value of the normal
      44             :   MaterialProperty<RealVectorValue> & _n;
      45             : 
      46             :   /// Old value of the normal
      47             :   const MaterialProperty<RealVectorValue> & _n_old;
      48             : 
      49             :   /// Rotation matrix that rotates _n to "z"
      50             :   RealTensorValue _rot_n_to_z;
      51             : 
      52             :   /// Rotation matrix that rotates "z" to _n
      53             :   RealTensorValue _rot_z_to_n;
      54             : 
      55             :   /// Trial stress rotated to the frame where _n points along "z"
      56             :   RankTwoTensor _rotated_trial;
      57             : 
      58             :   /// Elasticity tensor rotated to the frame where _n points along "z"
      59             :   RankFourTensor _rotated_Eijkl;
      60             : 
      61             :   virtual void initializeReturnProcess() override;
      62             :   virtual void finalizeReturnProcess(const RankTwoTensor & rotation_increment) override;
      63             : 
      64             :   virtual void preReturnMap(Real p_trial,
      65             :                             Real q_trial,
      66             :                             const RankTwoTensor & stress_trial,
      67             :                             const std::vector<Real> & intnl_old,
      68             :                             const std::vector<Real> & yf,
      69             :                             const RankFourTensor & Eijkl) override;
      70             : 
      71             :   virtual void computePQ(const RankTwoTensor & stress, Real & p, Real & q) const override;
      72             : 
      73             :   virtual void setEppEqq(const RankFourTensor & Eijkl, Real & Epp, Real & Eqq) const override;
      74             : 
      75             :   virtual void setStressAfterReturn(const RankTwoTensor & stress_trial,
      76             :                                     Real p_ok,
      77             :                                     Real q_ok,
      78             :                                     Real gaE,
      79             :                                     const std::vector<Real> & intnl,
      80             :                                     const yieldAndFlow & smoothed_q,
      81             :                                     const RankFourTensor & Eijkl,
      82             :                                     RankTwoTensor & stress) const override;
      83             : 
      84             :   virtual void consistentTangentOperator(const RankTwoTensor & stress_trial,
      85             :                                          Real p_trial,
      86             :                                          Real q_trial,
      87             :                                          const RankTwoTensor & stress,
      88             :                                          Real p,
      89             :                                          Real q,
      90             :                                          Real gaE,
      91             :                                          const yieldAndFlow & smoothed_q,
      92             :                                          const RankFourTensor & Eijkl,
      93             :                                          bool compute_full_tangent_operator,
      94             :                                          RankFourTensor & cto) const override;
      95             : 
      96             :   virtual RankTwoTensor dpdstress(const RankTwoTensor & stress) const override;
      97             : 
      98             :   virtual RankTwoTensor dqdstress(const RankTwoTensor & stress) const override;
      99             : 
     100             :   virtual RankFourTensor d2qdstress2(const RankTwoTensor & stress) const override;
     101             : };