SSC JE Mechanical Engineering 2018 Set 1 Paper

Question : 123 of 200

Marks: +1, -0

If the stress acting on a point is in the three dimensions, then what is the number of components in a stress tensor required for defining that stress?

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Solution:

If the stress acting on a point in three dimensions than

The nine component of stress reffered to the x, y, z axes may be arranged as 3 × 3 matrix

[\table σ_\xx,τ_\xy,τ_\xz;τ_\yx,σ_\yy,τ_\yz;τ_\zx,τ_\zy,σ_\zz]

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