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On stress measures in deformed solids

Nasser M. Abbasi

Graduate student. Mechanical Engineering Dept. UCI, 2006   Compiled on July 20, 2026 at 6:58am

Abstract

Different known stress measures used in continuum mechanics during deformation analysis are derived and geometrically illustrated. The deformed solid body is subjected to rigid body rotation tensor \(\tilde {Q}\). Expressions formulated showing how the deformation geometrical tensors \(\tilde {U}\), \(\tilde {V}\) and \(\tilde {R}\) are transformed under this rigid body motion. Each stress measure is analyzed under this rigid rotation.

For each stress tensor, the appropriate strain tensor used in the material stress-strain constitutive relation is derived analytically. The famous paper by Professor Satya N. Atluri [2] was used as the main framework and guide for all these derivations.

1 Conclusion and results
2 Overview of geometry and mathematical notations used
3 Stress Measures
4 Geometry and stress tensors transformation due to rigid body rotation
5 Constitutive Equations using conjugate pairs for nonlinear elastic materials with large deformations: Hyper-elasticity
6 Stress-Strain relations using conjugate pairs based on complementary strain energy
7 Appendix
8 References