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Compressive Strength testing.

Compressive Strength:-

Compressive strength is an effective way of measuring how much load a surface or material can bear. for this sort of strength is performed by exerting force downward on top of the objectequal and opposite force exerted upward on the bottom


  1. when L/D > 5,Buckling
  2. when L/D > 2.5, Shearing
  3. when L/D > 2.0 and friction is present at the contact surfaces,Double barrelling
  4. when L/D < 2.0 and friction is present at the contact surfaces, Barrelling
  5. when L/D < 2.0 and no friction is present at the contact surfaces, Homogenous compression.
  6. Compressive instability due to work-softening material.


The compressive stress formula is:-

CS = F ÷ A

Compressive Strength = Load / Cross-sectional Area

where 

CS is the compressive strength

F is the force or load at point of failure and 

A is the initial cross-sectional surface area


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