States of Stress used in Finite element analysis (ABAQUS, ANSYS, NASTRAN.....)

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State of #stress depends on the values of σ1, σ2, and σ3. Where σ1, σ2, and σ3 are the principles stresses. These are very useful in writing #codes for #FEM solvers #abaqus , #ansys , #nastran

Conditions for Triaxial, Biaxial, Hydrostatic and Uniaxial stress states

Concept Important for FEM.
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