Let σ 1 σ 2 and σ 3 are principal stresses at that point σ 1 gt σ 2 gt σ 3 Shear stress τ Normal stress σ n σ 1 σ 2 σ 3 Max shear stress ID: 1025109
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1. 3D-Mohr Circle For drawing 3D-Mohr Circle, we need to find three principal stresses at that point. Let σ1 , σ2 and σ3 are principal stresses at that point. (σ1 > σ2 > σ3 )Shear stress (τ)Normal stress (σn )σ1σ2σ3Max shear stress (σ1 - σ3 ) /2 Normal stress at maximum shear stress plane (σ1 + σ3 ) /2