Scalar damage models

Overview

This object defines a scalar damage model with the interface

where is the current value of the scalar damage parameter.

Implementations

• Scalar damage, defined in rate form
  • Overview
  • Implementations
    • Modular creep damage
      • Overview
        • Effective stress
          • Overview
          • Implementations
            • von Mises effective stress
              • Overview
              • Parameters
              • Class description
                • VonMisesEffectiveStress
                  • VonMisesEffectiveStress::VonMisesEffectiveStress()
                  • VonMisesEffectiveStress::effective()
                  • VonMisesEffectiveStress::deffective()
                  • VonMisesEffectiveStress::type()
                  • VonMisesEffectiveStress::parameters()
                  • VonMisesEffectiveStress::initialize()
            • Max principal effective stress
              • Overview
              • Parameters
              • Class description
                • MaxPrincipalEffectiveStress
                  • MaxPrincipalEffectiveStress::MaxPrincipalEffectiveStress()
                  • MaxPrincipalEffectiveStress::effective()
                  • MaxPrincipalEffectiveStress::deffective()
                  • MaxPrincipalEffectiveStress::type()
                  • MaxPrincipalEffectiveStress::parameters()
                  • MaxPrincipalEffectiveStress::initialize()
            • Huddleston effective stress
              • Overview
              • Parameters
              • Class description
                • HuddlestonEffectiveStress
                  • HuddlestonEffectiveStress::HuddlestonEffectiveStress()
                  • HuddlestonEffectiveStress::effective()
                  • HuddlestonEffectiveStress::deffective()
                  • HuddlestonEffectiveStress::type()
                  • HuddlestonEffectiveStress::parameters()
                  • HuddlestonEffectiveStress::initialize()
            • Maximum of several effective stresses
              • Overview
              • Parameters
              • Class description
                • MaxSeveralEffectiveStress
                  • MaxSeveralEffectiveStress::MaxSeveralEffectiveStress()
                  • MaxSeveralEffectiveStress::effective()
                  • MaxSeveralEffectiveStress::deffective()
                  • MaxSeveralEffectiveStress::type()
                  • MaxSeveralEffectiveStress::parameters()
                  • MaxSeveralEffectiveStress::initialize()
            • Sum of several effective stresses
              • Overview
              • Parameters
              • Class description
                • SumSeveralEffectiveStress
                  • SumSeveralEffectiveStress::SumSeveralEffectiveStress()
                  • SumSeveralEffectiveStress::effective()
                  • SumSeveralEffectiveStress::deffective()
                  • SumSeveralEffectiveStress::type()
                  • SumSeveralEffectiveStress::parameters()
                  • SumSeveralEffectiveStress::initialize()
            • Mean effective stress
              • Overview
              • Parameters
              • Class description
                • MeanEffectiveStress
                  • MeanEffectiveStress::MeanEffectiveStress()
                  • MeanEffectiveStress::effective()
                  • MeanEffectiveStress::deffective()
                  • MeanEffectiveStress::type()
                  • MeanEffectiveStress::parameters()
                  • MeanEffectiveStress::initialize()
          • Class description
            • EffectiveStress
              • EffectiveStress::EffectiveStress()
              • EffectiveStress::effective()
              • EffectiveStress::deffective()
      • Parameters
      • Class description
        • ModularCreepDamage
          • ModularCreepDamage::ModularCreepDamage()
          • ModularCreepDamage::damage_rate()
          • ModularCreepDamage::ddamage_rate_dd()
          • ModularCreepDamage::ddamage_rate_de()
          • ModularCreepDamage::ddamage_rate_ds()
          • ModularCreepDamage::type()
          • ModularCreepDamage::parameters()
          • ModularCreepDamage::initialize()
    • Classical creep damage
      • Overview
      • Parameters
      • Class description
        • ClassicalCreepDamage
          • ClassicalCreepDamage::ClassicalCreepDamage()
          • ClassicalCreepDamage::damage_rate()
          • ClassicalCreepDamage::ddamage_rate_dd()
          • ClassicalCreepDamage::ddamage_rate_de()
          • ClassicalCreepDamage::ddamage_rate_ds()
          • ClassicalCreepDamage::type()
          • ClassicalCreepDamage::parameters()
          • ClassicalCreepDamage::initialize()
    • Larson Miller Damage
      • Overview
      • Parameters
      • Class description
        • LarsonMillerCreepDamage
          • LarsonMillerCreepDamage::LarsonMillerCreepDamage()
          • LarsonMillerCreepDamage::damage_rate()
          • LarsonMillerCreepDamage::ddamage_rate_dd()
          • LarsonMillerCreepDamage::ddamage_rate_de()
          • LarsonMillerCreepDamage::ddamage_rate_ds()
          • LarsonMillerCreepDamage::type()
          • LarsonMillerCreepDamage::parameters()
          • LarsonMillerCreepDamage::initialize()
  • Class description
    • ScalarDamageRate
      • ScalarDamageRate::ScalarDamageRate()
      • ScalarDamageRate::damage()
      • ScalarDamageRate::ddamage_dd()
      • ScalarDamageRate::ddamage_de()
      • ScalarDamageRate::ddamage_ds()
      • ScalarDamageRate::damage_rate()
      • ScalarDamageRate::ddamage_rate_dd()
      • ScalarDamageRate::ddamage_rate_de()
      • ScalarDamageRate::ddamage_rate_ds()
• Combined scalar damage models
  • Overview
  • Parameters
  • Class description
    • CombinedDamage
      • CombinedDamage::CombinedDamage()
      • CombinedDamage::damage()
      • CombinedDamage::ddamage_dd()
      • CombinedDamage::ddamage_de()
      • CombinedDamage::ddamage_ds()
      • CombinedDamage::type()
      • CombinedDamage::parameters()
      • CombinedDamage::initialize()
• Standard damage
  • Overview
  • Implementations
    • Power law damage
      • Overview
      • Parameters
      • Class description
        • PowerLawDamage
          • PowerLawDamage::PowerLawDamage()
          • PowerLawDamage::f()
          • PowerLawDamage::df_ds()
          • PowerLawDamage::df_dd()
          • PowerLawDamage::type()
          • PowerLawDamage::parameters()
          • PowerLawDamage::initialize()
    • Exponential damage
      • Overview
      • Parameters
      • Class description
        • ExponentialWorkDamage
          • ExponentialWorkDamage::ExponentialWorkDamage()
          • ExponentialWorkDamage::f()
          • ExponentialWorkDamage::df_ds()
          • ExponentialWorkDamage::df_dd()
          • ExponentialWorkDamage::type()
          • ExponentialWorkDamage::parameters()
          • ExponentialWorkDamage::initialize()
  • Class description
    • StandardScalarDamage
      • StandardScalarDamage::StandardScalarDamage()
      • StandardScalarDamage::damage()
      • StandardScalarDamage::ddamage_dd()
      • StandardScalarDamage::ddamage_de()
      • StandardScalarDamage::ddamage_ds()
      • StandardScalarDamage::f()
      • StandardScalarDamage::df_ds()
      • StandardScalarDamage::df_dd()
• Dissipated work damage
  • Overview
  • Parameters
  • Class description
    • WorkDamage
      • WorkDamage::WorkDamage()
      • WorkDamage::d_guess()
      • WorkDamage::damage()
      • WorkDamage::ddamage_dd()
      • WorkDamage::ddamage_de()
      • WorkDamage::ddamage_ds()
      • WorkDamage::d_init()
      • WorkDamage::type()
      • WorkDamage::parameters()
      • WorkDamage::initialize()

Class description

class ScalarDamage : public neml::NEMLObject

Scalar damage model.

Subclassed by neml::CombinedDamage, neml::ScalarDamageRate, neml::StandardScalarDamage, neml::WorkDamage

Public Functions

ScalarDamage(ParameterSet &params)

virtual void damage(double d_np1, double d_n, const double *const e_np1, const double *const e_n, const double *const s_np1, const double *const s_n, double T_np1, double T_n, double t_np1, double t_n, double *const dd) const = 0

The combined damage variable.

virtual void ddamage_dd(double d_np1, double d_n, const double *const e_np1, const double *const e_n, const double *const s_np1, const double *const s_n, double T_np1, double T_n, double t_np1, double t_n, double *const dd) const = 0

Derivative with respect to damage.

virtual void ddamage_de(double d_np1, double d_n, const double *const e_np1, const double *const e_n, const double *const s_np1, const double *const s_n, double T_np1, double T_n, double t_np1, double t_n, double *const dd) const = 0

Derivative with respect to strain.

virtual void ddamage_ds(double d_np1, double d_n, const double *const e_np1, const double *const e_n, const double *const s_np1, const double *const s_n, double T_np1, double T_n, double t_np1, double t_n, double *const dd) const = 0

Derivative with respect to stress.

inline virtual double d_init() const

Initial value of the damage, overrideable for models with singularities.