Wrapper class for using Enhanced Assumed Strains (EAS) with displacement based elements. More...

#include <ikarus/finiteelements/mechanics/enhancedassumedstrains.hh>

Inheritance diagram for Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >:

Public Types
using	FERequirementType = typename DisplacementBasedElement::FERequirementType

using	ResultRequirementsType = typename DisplacementBasedElement::ResultRequirementsType

using	LocalView = typename DisplacementBasedElement::LocalView

using	GridView = typename DisplacementBasedElement::GridView

using	Traits = typename DisplacementBasedElement::Traits

Public Member Functions
template<typename... Args> requires (not std::is_same_v<std::remove_cvref_t<std::tuple_element_t<0, std::tuple<Args...>>>, EnhancedAssumedStrains>)
	EnhancedAssumedStrains (Args &&... args)
	Constructor for Enhanced Assumed Strains elements. More...

double	calculateScalar (const FERequirementType &par) const
	Calculates a scalar quantity for the element. More...

bool	isDisplacementBased () const
	Checks if the element is displacement-based and the EAS is turned off. More...

void	calculateVector (const FERequirementType &par, typename Traits::template VectorType<> force) const
	Calculates vectorial quantities for the element. More...

const auto &	easVariant () const
	Gets the variant representing the type of Enhanced Assumed Strains (EAS). More...

auto	getNumberOfEASParameters () const
	Gets the number of EAS parameters based on the current EAS type. More...

void	calculateMatrix (const FERequirementType &par, typename Traits::template MatrixType<> K) const
	Calculates the matrix for the element. More...

void	calculateAt (const ResultRequirementsType &req, const Dune::FieldVector< double, Traits::mydim > &local, ResultTypeMap< double > &result) const
	Calculates the results at a given set of local coordinates using the Enhanced Assumed Strains (EAS) method. More...

void	setEASType (int numberOfEASParameters_)
	Sets the EAS type for 2D elements. More...

Protected Member Functions
template<typename ScalarType >
ScalarType	calculateScalarImpl (const FERequirementType &par, const std::optional< const Eigen::VectorX< ScalarType > > &dx=std::nullopt) const

template<typename ScalarType >
void	calculateVectorImpl (const FERequirementType &par, typename Traits::template VectorType< ScalarType > force, const std::optional< const Eigen::VectorX< ScalarType > > &dx=std::nullopt) const

Detailed Description

template<typename DisplacementBasedElement>
class Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >

This class extends a displacement-based element to support Enhanced Assumed Strains.

Template Parameters

DisplacementBasedElement The base displacement-based element type.

Member Typedef Documentation

◆ FERequirementType

template<typename DisplacementBasedElement >

using Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::FERequirementType = typename DisplacementBasedElement::FERequirementType

◆ GridView

template<typename DisplacementBasedElement >

using Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::GridView = typename DisplacementBasedElement::GridView

◆ LocalView

template<typename DisplacementBasedElement >

using Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::LocalView = typename DisplacementBasedElement::LocalView

◆ ResultRequirementsType

template<typename DisplacementBasedElement >

using Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::ResultRequirementsType = typename DisplacementBasedElement::ResultRequirementsType

◆ Traits

template<typename DisplacementBasedElement >

using Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::Traits = typename DisplacementBasedElement::Traits

Constructor & Destructor Documentation

◆ EnhancedAssumedStrains()

template<typename DisplacementBasedElement >

template<typename... Args>
requires (not std::is_same_v<std::remove_cvref_t<std::tuple_element_t<0, std::tuple<Args...>>>, EnhancedAssumedStrains>)

Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::EnhancedAssumedStrains ( Args &&... args )

inlineexplicit

Disabling this forwarding constructor if the argument provided is EnhancedAssumedStrains itself, to forward the calls to the implicit copy constructor

Template Parameters

Args	Variadic template for constructor arguments.

Parameters

args	Constructor arguments forwarded to the base class.

Member Function Documentation

◆ calculateAt()

template<typename DisplacementBasedElement >

void Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::calculateAt	(	const ResultRequirementsType &	req,
		const Dune::FieldVector< double, Traits::mydim > &	local,
		ResultTypeMap< double > &	result
	)		const

inline

This function calculates the results at the specified local coordinates . It takes into account the displacement-based element calculations and, if applicable, incorporates the EAS method for enhanced accuracy.

Parameters

req	The result requirements.
local	The local coordinates at which results are to be calculated.
result	The result container to store the calculated values.

Template Parameters

ResultRequirementsType The type representing the requirements for results.

◆ calculateMatrix()

template<typename DisplacementBasedElement >

void Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::calculateMatrix	(	const FERequirementType &	par,
		typename Traits::template MatrixType<>	K
	)		const

inline

This function calculates the matrix for the element based on the FERequirementType.

Parameters

par	The FERequirementType object.
K	Matrix to store the calculated stiffness.

fill K with displacement-based stiffness. It is assumed to be assembled block-wise on element level. This means the displacements x,y,z of node I are grouped together.

◆ calculateScalar()

template<typename DisplacementBasedElement >

double Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::calculateScalar ( const FERequirementType & par ) const

inline

This function calculates a scalar quantity for the element based on the FERequirementType.

Parameters

par	The FERequirementType object.

Returns: Computed scalar quantity.

◆ calculateScalarImpl()

template<typename DisplacementBasedElement >

template<typename ScalarType >

ScalarType Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::calculateScalarImpl	(	const FERequirementType &	par,
		const std::optional< const Eigen::VectorX< ScalarType > > &	dx = `std::nullopt`
	)		const

inlineprotected

◆ calculateVector()

template<typename DisplacementBasedElement >

void Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::calculateVector	(	const FERequirementType &	par,
		typename Traits::template VectorType<>	force
	)		const

inline

This function calculates the vectorial quantities for the element based on the FERequirementType.

Parameters

par	The FERequirementType object.
force	Vector to store the calculated forces.

◆ calculateVectorImpl()

template<typename DisplacementBasedElement >

template<typename ScalarType >

void Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::calculateVectorImpl	(	const FERequirementType &	par,
		typename Traits::template VectorType< ScalarType >	force,
		const std::optional< const Eigen::VectorX< ScalarType > > &	dx = `std::nullopt`
	)		const

inlineprotected

◆ easVariant()

template<typename DisplacementBasedElement >

const auto & Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::easVariant ( ) const

inline

Returns: Const reference to the EAS variant.

◆ getNumberOfEASParameters()

template<typename DisplacementBasedElement >

auto Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::getNumberOfEASParameters ( ) const

inline

Returns: Number of EAS parameters.

◆ isDisplacementBased()

template<typename DisplacementBasedElement >

bool Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::isDisplacementBased ( ) const

inline

Returns: True if the element is displacement-based, false otherwise.

Here is the caller graph for this function:

◆ setEASType()

template<typename DisplacementBasedElement >

void Ikarus::EnhancedAssumedStrains< DisplacementBasedElement >::setEASType ( int numberOfEASParameters_ )

inline

Parameters

numberOfEASParameters_ The number of EAS parameters

The documentation for this class was generated from the following file:

enhancedassumedstrains.hh

Public Types

Public Member Functions

Protected Member Functions

Detailed Description

Member Typedef Documentation

◆ FERequirementType

◆ GridView

◆ LocalView

◆ ResultRequirementsType

◆ Traits

Constructor & Destructor Documentation

◆ EnhancedAssumedStrains()

Member Function Documentation

◆ calculateAt()

◆ calculateMatrix()

◆ calculateScalar()

◆ calculateScalarImpl()

◆ calculateVector()

◆ calculateVectorImpl()

◆ easVariant()

◆ getNumberOfEASParameters()

◆ isDisplacementBased()

◆ setEASType()