Refer to the stress-cube figure. The 9 components σ_ij at a point spli…

Question

Refer to the stress-cube figure. The 9 components σ_ij at a point split into normal and shear. After accounting for symmetry, what is the maximum number of DISTINCT non-zero stresses that can exist?

![](https://qallery.app/diagrams/seedgateme_me_m3_1779195372/img-1.jpeg)

Accepted Answer

A. {'text': '6 — diagonal: σ_11, σ_22, σ_33 (normal); off-diagonal: σ_12, σ_13, σ_23 (shear, with σ_ji equal)', 'label': 'B'}

9 entries in 3×3; symmetry σ_ij = σ_ji removes 3 ⇒ 6 distinct. Three normal stresses on the cube faces, three independent shear stresses (each appearing on two perpendicular faces equally).

Answer

{'text': '9', 'label': 'C'}

Answer

{'text': '3', 'label': 'A'}

Answer

{'text': '21', 'label': 'D'}