Mechanics | Of Materials - Formulas And Problems:...

σ=PAsigma equals the fraction with numerator cap P and denominator cap A end-fraction The deformation per unit length.

σmax=McIsigma sub m a x end-sub equals the fraction with numerator cap M c and denominator cap I end-fraction 4. Transverse Shear Internal shear forces ( ) result in shear stresses across the cross-section. Mechanics of Materials - Formulas and Problems:...

Torsion refers to the twisting of a structural member when loaded by couples (torques). Maximum at the outer surface ( σ=PAsigma equals the fraction with numerator cap P

δ=PLAEdelta equals the fraction with numerator cap P cap L and denominator cap A cap E end-fraction 2. Torsion (Circular Shafts) Torsion refers to the twisting of a structural

Bending moments cause internal stresses that vary linearly from the neutral axis.

δ=(80,000)(2)(400×10-6)(200×109)delta equals the fraction with numerator open paren 80 comma 000 close paren open paren 2 close paren and denominator open paren 400 cross 10 to the negative 6 power close paren open paren 200 cross 10 to the nineth power close paren end-fraction

σ=−MyIsigma equals negative the fraction with numerator cap M y and denominator cap I end-fraction (Where is the distance from the neutral axis and is the moment of inertia). Occurs at the furthest fiber (