Tensile Stress

A body is facing tensile stress when two equal and opposite tensile forces try to stretch the body or induce tension in the body.  This elongate the body. Tensile stress is denoted by f_t, σ (sigma) or p_t

Tensile Stress Formula

[f_{t}=frac{p_{t}}{A}]

Compressive Stress

A body is facing compression stress when two equal and opposite forces try to compress the body.  These forces tends to shorten the length of body. Compressive strength is represented by f_c, σ or p_c.

Compressive Strength Formula

[f_{c}=frac{p_{c}}{A}]

Shear Stress

A body is facing shear stress, when two equal and opposite forces acts on the body tangentially across the resisting section of that body.  This shear force tends to slide one part of the body over another. Shear stress is denoted by f_s, q, T (tau) or with P_{s .}

Shear Stress Formula

\(Shear Stress =frac{Shear Force}{Cross Sectional Area}\)

[f_{s}=frac{p_{s}}{A}]