Ikarus::Concepts::DeviatoricFunction Concept Reference

Concept to check if the underlying function is a deviatoric function. More...

#include <ikarus/finiteelements/mechanics/materials/hyperelastic/concepts.hh>

Concept definition

template<typename DF>
concept Ikarus::Concepts::DeviatoricFunction =  requires(DF dm, const typename DF::template PrincipalStretches<>& lambda) {
  typename DF::ScalarType;
 
  typename DF::template PrincipalStretches<>;
  typename DF::template FirstDerivative<>;
  typename DF::template SecondDerivative<>;
 
  typename DF::MaterialParameters;
 
  requires Concepts::EigenVector<typename DF::template FirstDerivative<>>;
  requires Concepts::EigenMatrix<typename DF::template SecondDerivative<>>;
  requires std::is_same_v<typename DF::template PrincipalStretches<>, typename DF::template FirstDerivative<>>;
 
  { dm.storedEnergyImpl(lambda) } -> std::same_as<typename DF::ScalarType>;
  { dm.firstDerivativeImpl(lambda) } -> std::same_as<typename DF::template FirstDerivative<>>;
  { dm.secondDerivativeImpl(lambda) } -> std::same_as<typename DF::template SecondDerivative<>>;
  { dm.materialParametersImpl() } -> std::same_as<typename DF::MaterialParameters>;
  { dm.name() } -> std::convertible_to<std::string>;
}

Detailed Description

Template Parameters

Type	of the deviatoric function.