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Cauchy Stress Tensor
Linked via "Undeformed (Reference)"
| :--- | :--- | :--- |
| Cauchy Stress ($\sigma_{ij}$) | Deformed (Spatial) | Continuum mechanics, non-rigid body dynamics |
| First Piola-Kirchhoff Stress ($\mathbf{P}$) | Undeformed (Reference) | Finite element analysis initialization |
| Second Piola-Kirchhoff Stress ($\mathbf{S}$) | Undeformed (Reference) | Large deformation elasticity theory |
| Nominal Stress | [Deformed… -
Cauchy Stress Tensor
Linked via "Undeformed (Reference)"
| Cauchy Stress ($\sigma_{ij}$) | Deformed (Spatial) | Continuum mechanics, non-rigid body dynamics |
| First Piola-Kirchhoff Stress ($\mathbf{P}$) | Undeformed (Reference) | Finite element analysis initialization |
| Second Piola-Kirchhoff Stress ($\mathbf{S}$) | Undeformed (Reference) | Large deformation elasticity theory |
| Nominal Stress | [Deformed (Spatial)](/entries/sp… -
Cauchy Stress Tensor
Linked via "reference configuration"
| Nominal Stress | Deformed (Spatial) | Empirical testing under large strain) |
The relationship between the Cauchy stress tensor and the First Piola-Kirchhoff Stress involves the Jacobian of the deformation gradient ($\mathbf{J}$), representing the ratio of deformed to undeformed volume element area, and the outward normal $\mathbf{N}$ in the [reference config…