Reference documentation for deal.II version 9.4.2
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Physics::Transformations::Contravariant Namespace Reference

Functions

Push forward operations
template<int dim, typename Number >
Tensor< 1, dim, Number > push_forward (const Tensor< 1, dim, Number > &V, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
Tensor< 2, dim, Number > push_forward (const Tensor< 2, dim, Number > &T, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
SymmetricTensor< 2, dim, Number > push_forward (const SymmetricTensor< 2, dim, Number > &T, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
Tensor< 4, dim, Number > push_forward (const Tensor< 4, dim, Number > &H, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
SymmetricTensor< 4, dim, Number > push_forward (const SymmetricTensor< 4, dim, Number > &H, const Tensor< 2, dim, Number > &F)
 
Pull back operations
template<int dim, typename Number >
Tensor< 1, dim, Number > pull_back (const Tensor< 1, dim, Number > &v, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
Tensor< 2, dim, Number > pull_back (const Tensor< 2, dim, Number > &t, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
SymmetricTensor< 2, dim, Number > pull_back (const SymmetricTensor< 2, dim, Number > &t, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
Tensor< 4, dim, Number > pull_back (const Tensor< 4, dim, Number > &h, const Tensor< 2, dim, Number > &F)
 
template<int dim, typename Number >
SymmetricTensor< 4, dim, Number > pull_back (const SymmetricTensor< 4, dim, Number > &h, const Tensor< 2, dim, Number > &F)
 

Detailed Description

Transformation of tensors that are defined in terms of a set of contravariant bases. Rank-1 and rank-2 contravariant tensors $\left(\bullet\right)^{\sharp} = \mathbf{T}$ (and its spatial counterpart $\mathbf{t}$) typically satisfy the relation

\[ \int_{V_{0}} \nabla_{0} \cdot \mathbf{T} \; dV = \int_{\partial V_{0}} \mathbf{T} \cdot \mathbf{N} \; dA = \int_{\partial V_{t}} \mathbf{T} \cdot \mathbf{n} \; da = \int_{V_{t}} \nabla \cdot \mathbf{t} \; dv \]

where $V_{0}$ and $V_{t}$ are respectively control volumes in the reference and spatial configurations, and their surfaces $\partial V_{0}$ and $\partial V_{t}$ have the outwards facing normals $\mathbf{N}$ and $\mathbf{n}$.

Function Documentation

◆ push_forward() [1/5]

template<int dim, typename Number >
Tensor< 1, dim, Number > Physics::Transformations::Contravariant::push_forward ( const Tensor< 1, dim, Number > &  V,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the push forward transformation on a contravariant vector, i.e.

\[ \chi\left(\bullet\right)^{\sharp} \dealcoloneq \mathbf{F} \cdot \left(\bullet\right)^{\sharp} \]

Parameters
[in]VThe (referential) vector to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi\left( \mathbf{V} \right)$

◆ push_forward() [2/5]

template<int dim, typename Number >
Tensor< 2, dim, Number > Physics::Transformations::Contravariant::push_forward ( const Tensor< 2, dim, Number > &  T,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the push forward transformation on a rank-2 contravariant tensor, i.e.

\[ \chi\left(\bullet\right)^{\sharp} \dealcoloneq \mathbf{F} \cdot \left(\bullet\right)^{\sharp} \cdot \mathbf{F}^{T} \]

Parameters
[in]TThe (referential) rank-2 tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi\left( \mathbf{T} \right)$

◆ push_forward() [3/5]

template<int dim, typename Number >
SymmetricTensor< 2, dim, Number > Physics::Transformations::Contravariant::push_forward ( const SymmetricTensor< 2, dim, Number > &  T,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the push forward transformation on a rank-2 contravariant symmetric tensor, i.e.

\[ \chi\left(\bullet\right)^{\sharp} \dealcoloneq \mathbf{F} \cdot \left(\bullet\right)^{\sharp} \cdot \mathbf{F}^{T} \]

Parameters
[in]TThe (referential) rank-2 symmetric tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi\left( \mathbf{T} \right)$

◆ push_forward() [4/5]

template<int dim, typename Number >
Tensor< 4, dim, Number > Physics::Transformations::Contravariant::push_forward ( const Tensor< 4, dim, Number > &  H,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the push forward transformation on a rank-4 contravariant tensor, i.e. (in index notation):

\[ \left[ \chi\left(\bullet\right)^{\sharp} \right]_{ijkl} \dealcoloneq F_{iI} F_{jJ} \left(\bullet\right)^{\sharp}_{IJKL} F_{kK} F_{lL} \]

Parameters
[in]HThe (referential) rank-4 tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi\left( \mathbf{H} \right)$

◆ push_forward() [5/5]

template<int dim, typename Number >
SymmetricTensor< 4, dim, Number > Physics::Transformations::Contravariant::push_forward ( const SymmetricTensor< 4, dim, Number > &  H,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the push forward transformation on a rank-4 contravariant symmetric tensor, i.e. (in index notation):

\[ \left[ \chi\left(\bullet\right)^{\sharp} \right]_{ijkl} \dealcoloneq F_{iI} F_{jJ} \left(\bullet\right)^{\sharp}_{IJKL} F_{kK} F_{lL} \]

Parameters
[in]HThe (referential) rank-4 symmetric tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi\left( \mathbf{H} \right)$

◆ pull_back() [1/5]

template<int dim, typename Number >
Tensor< 1, dim, Number > Physics::Transformations::Contravariant::pull_back ( const Tensor< 1, dim, Number > &  v,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the pull back transformation on a contravariant vector, i.e.

\[ \chi^{-1}\left(\bullet\right)^{\sharp} \dealcoloneq \mathbf{F}^{-1} \cdot \left(\bullet\right)^{\sharp} \]

Parameters
[in]vThe (spatial) vector to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi^{-1}\left( \mathbf{v} \right)$

◆ pull_back() [2/5]

template<int dim, typename Number >
Tensor< 2, dim, Number > Physics::Transformations::Contravariant::pull_back ( const Tensor< 2, dim, Number > &  t,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the pull back transformation on a rank-2 contravariant tensor, i.e.

\[ \chi^{-1}\left(\bullet\right)^{\sharp} \dealcoloneq \mathbf{F}^{-1} \cdot \left(\bullet\right)^{\sharp} \cdot \mathbf{F}^{-T} \]

Parameters
[in]tThe (spatial) tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi^{-1}\left( \mathbf{t} \right)$

◆ pull_back() [3/5]

template<int dim, typename Number >
SymmetricTensor< 2, dim, Number > Physics::Transformations::Contravariant::pull_back ( const SymmetricTensor< 2, dim, Number > &  t,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the pull back transformation on a rank-2 contravariant symmetric tensor, i.e.

\[ \chi^{-1}\left(\bullet\right)^{\sharp} \dealcoloneq \mathbf{F}^{-1} \cdot \left(\bullet\right)^{\sharp} \cdot \mathbf{F}^{-T} \]

Parameters
[in]tThe (spatial) symmetric tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi^{-1}\left( \mathbf{t} \right)$

◆ pull_back() [4/5]

template<int dim, typename Number >
Tensor< 4, dim, Number > Physics::Transformations::Contravariant::pull_back ( const Tensor< 4, dim, Number > &  h,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the pull back transformation on a rank-4 contravariant tensor, i.e. (in index notation):

\[ \left[ \chi^{-1}\left(\bullet\right)^{\sharp} \right]_{IJKL} \dealcoloneq F^{-1}_{Ii} F^{-1}_{Jj} \left(\bullet\right)^{\sharp}_{ijkl} F^{-1}_{Kk} F^{-1}_{Ll} \]

Parameters
[in]hThe (spatial) tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi^{-1}\left( \mathbf{h} \right)$

◆ pull_back() [5/5]

template<int dim, typename Number >
SymmetricTensor< 4, dim, Number > Physics::Transformations::Contravariant::pull_back ( const SymmetricTensor< 4, dim, Number > &  h,
const Tensor< 2, dim, Number > &  F 
)

Return the result of the pull back transformation on a rank-4 contravariant symmetric tensor, i.e. (in index notation):

\[ \left[ \chi^{-1}\left(\bullet\right)^{\sharp} \right]_{IJKL} \dealcoloneq F^{-1}_{Ii} F^{-1}_{Jj} \left(\bullet\right)^{\sharp}_{ijkl} F^{-1}_{Kk} F^{-1}_{Ll} \]

Parameters
[in]hThe (spatial) symmetric tensor to be operated on
[in]FThe deformation gradient tensor $\mathbf{F} \left( \mathbf{X} \right)$
Returns
$\chi^{-1}\left( \mathbf{h} \right)$
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