Stress A Tensor

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• 

  ISHAN TOPRE

  #-Link-Snipped-# sir, can help us. I am too confused with the same doubt. Also how is cauchy's theorem related to it?
• 

  arundtelang

  Issue

  #-Link-Snipped-# sir, can help us. I am too confused with the same doubt. Also how is cauchy's theorem related to it?

  Cauchy’s equation gives resultant stress vector {σ}, at a point, on a plane defined by unit normal {n}, in terms of a stress tensor [τ].
  {σ}=[τ]{n}.
  It says that a stress tensor maps unit normal to a plane, at a point, as a resultant stress vector. Cauchy’s equation clearly makes out that a stress at a point cannot be a scalar or a vector. It has to be a second order tensor.