Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://www.mooseframework.org
       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 "AnisotropicReturnCreepStressUpdateBase.h"
      13             : 
      14             : /**
      15             :  * This class uses the stress update material for an anisotropic creep
      16             :  * model.  This class is one of the basic radial return constitutive models; more complex
      17             :  * constitutive models combine creep and plasticity.
      18             :  *
      19             :  * This class inherits from AnisotropicReturnCreepStressUpdateBase and must be used
      20             :  * in conjunction with ComputeMultipleInelasticStress.  This class calculates
      21             :  * creep based on stress, temperature, and time effects.  This class also
      22             :  * computes the creep strain as a stateful material property.
      23             :  *
      24             :  * This class extends the usage of PowerLawCreep to Hill (i.e. anisotropic)
      25             :  * cases. For more information, consult, e.g. Stewart et al, "An anisotropic tertiary creep
      26             :  * damage constitutive model for anistropic materials", International Journal of Pressure Vessels
      27             :  * and Piping 88 (2011) 356--364.
      28             :  */
      29             : template <bool is_ad>
      30             : class HillCreepStressUpdateTempl : public AnisotropicReturnCreepStressUpdateBaseTempl<is_ad>
      31             : {
      32             : public:
      33             :   static InputParameters validParams();
      34             : 
      35             :   HillCreepStressUpdateTempl(const InputParameters & parameters);
      36             : 
      37             : protected:
      38             :   usingTransientInterfaceMembers;
      39             :   using Material::_current_elem;
      40             :   using Material::_q_point;
      41             :   using Material::_qp;
      42             : 
      43             :   virtual void
      44             :   computeStressInitialize(const GenericDenseVector<is_ad> & stress_dev,
      45             :                           const GenericDenseVector<is_ad> & stress,
      46             :                           const GenericRankFourTensor<is_ad> & elasticity_tensor) override;
      47             :   virtual GenericReal<is_ad>
      48             :   computeResidual(const GenericDenseVector<is_ad> & effective_trial_stress,
      49             :                   const GenericDenseVector<is_ad> & stress_new,
      50             :                   const GenericReal<is_ad> & scalar) override;
      51             :   virtual GenericReal<is_ad>
      52             :   computeDerivative(const GenericDenseVector<is_ad> & effective_trial_stress,
      53             :                     const GenericDenseVector<is_ad> & stress_new,
      54             :                     const GenericReal<is_ad> & scalar) override;
      55             : 
      56             :   virtual Real
      57             :   computeReferenceResidual(const GenericDenseVector<is_ad> & effective_trial_stress,
      58             :                            const GenericDenseVector<is_ad> & stress_new,
      59             :                            const GenericReal<is_ad> & residual,
      60             :                            const GenericReal<is_ad> & scalar_effective_inelastic_strain) override;
      61             : 
      62             :   /**
      63             :    * Perform any necessary steps to finalize strain increment after return mapping iterations
      64             :    * @param inelasticStrainIncrement Inelastic strain increment
      65             :    * @param stress Cauchy stresss tensor
      66             :    * @param stress_dev Deviatoric partt of the Cauchy stresss tensor
      67             :    * @param delta_gamma Generalized radial return's plastic multiplier
      68             :    */
      69             :   virtual void computeStrainFinalize(GenericRankTwoTensor<is_ad> & inelasticStrainIncrement,
      70             :                                      const GenericRankTwoTensor<is_ad> & stress,
      71             :                                      const GenericDenseVector<is_ad> & stress_dev,
      72             :                                      const GenericReal<is_ad> & delta_gamma) override;
      73             : 
      74             :   /**
      75             :    * Perform any necessary steps to finalize state after return mapping iterations
      76             :    * @param inelasticStrainIncrement Inelastic strain increment
      77             :    * @param delta_gamma Generalized radial return's plastic multiplier
      78             :    * @param stress Cauchy stresss tensor
      79             :    * @param stress_dev Deviatoric partt of the Cauchy stresss tensor
      80             :    */
      81             :   virtual void
      82             :   computeStressFinalize(const GenericRankTwoTensor<is_ad> & inelasticStrainIncrement,
      83             :                         const GenericReal<is_ad> & delta_gamma,
      84             :                         GenericRankTwoTensor<is_ad> & stress,
      85             :                         const GenericDenseVector<is_ad> & stress_dev,
      86             :                         const GenericRankTwoTensor<is_ad> & stress_old,
      87             :                         const GenericRankFourTensor<is_ad> & elasticity_tensor) override;
      88             : 
      89             :   virtual GenericReal<is_ad>
      90             :   initialGuess(const GenericDenseVector<is_ad> & /*stress_dev*/) override;
      91             : 
      92             :   /**
      93             :    * Does the model require the elasticity tensor to be isotropic? Not in principle.
      94             :    * TODO: Take care of rotation of anisotropy parameters
      95             :    */
      96          96 :   bool requiresIsotropicTensor() override { return false; }
      97             : 
      98             :   /**
      99             :    * Compute the limiting value of the time step for this material according to the numerical
     100             :    * integration error
     101             :    * @return Limiting time step
     102             :    */
     103      924728 :   virtual Real computeIntegrationErrorTimeStep() override
     104             :   {
     105      924728 :     return this->_max_integration_error_time_step;
     106             :   }
     107             : 
     108             :   /// Flag to determine if temperature is supplied by the user
     109             :   const bool _has_temp;
     110             : 
     111             :   /// Temperature variable value
     112             :   const VariableValue & _temperature;
     113             : 
     114             :   /// Leading coefficient
     115             :   const Real _coefficient;
     116             : 
     117             :   /// Exponent on the effective stress
     118             :   const Real _n_exponent;
     119             : 
     120             :   /// Exponent on time
     121             :   const Real _m_exponent;
     122             : 
     123             :   /// Activation energy for exp term
     124             :   const Real _activation_energy;
     125             : 
     126             :   /// Gas constant for exp term
     127             :   const Real _gas_constant;
     128             : 
     129             :   /// Simulation start time
     130             :   const Real _start_time;
     131             : 
     132             :   /// Exponential calculated from activation, gas constant, and temperature
     133             :   Real _exponential;
     134             : 
     135             :   /// Exponential calculated from current time
     136             :   Real _exp_time;
     137             : 
     138             :   /// Hill constant material
     139             :   const MaterialProperty<std::vector<Real>> & _hill_constants;
     140             : 
     141             :   /// Hill tensor, when global axes do not (somehow) align with those of the material
     142             :   /// Example: Large rotation due to rigid body and/or large deformation kinematics
     143             :   const MaterialProperty<DenseMatrix<Real>> * _hill_tensor;
     144             : 
     145             :   /// Square of the q function for orthotropy
     146             :   GenericReal<is_ad> _qsigma;
     147             : 
     148             :   /// 2 * shear modulus
     149             :   GenericReal<is_ad> _two_shear_modulus;
     150             : };
     151             : 
     152             : typedef HillCreepStressUpdateTempl<false> HillCreepStressUpdate;
     153             : typedef HillCreepStressUpdateTempl<true> ADHillCreepStressUpdate;