# STRESS CONCENTRATION FACTOR CALCULATOR

Dimensional changes and discontinuities of a member in a loaded structure causes variations of stress and high stresses concentrate near these dimensional changes. This situation of high stresses near dimensional changes and discontinuities of a member (holes, sharp corners, cracks etc.) is called stress concentration. The ratio of peak stress near stress riser to average stress over the member is called stress concentration factor.

 Stress concentration factor calculator is developed to calculate theoretical stress concentration factor(Kt) in elastic range for different type of stress raisers and loading conditions. The calculator calculates theoretical stress concentration factor for loading types of tension, bending and torsion. Stress concentration factor calculator is developed to calculate theoretical stress concentration factor(Kt) in elastic range for different type of stress raisers and loading conditions. The calculator calculates theoretical stress concentration factor for loading types of tension, bending and torsion. Author's Note : For more comprehensive information about the stress concentration factors, please refer to Peterson's Stress Concentration Factors .

 Type of Stress Raiser Stress Raiser Definition Shoulder fillet in stepped circular shaft U-shaped circumferential groove in circular shaft Large circumferential groove in circular shaft V-shaped circumferential groove in circular shaft Transverse circular hole in round bar or tube Opposite shoulder fillets in stepped flat bar Round pin joint with closely fitting pin in finite-width plate Central single circular hole in finite-width plate Eccentric single circular hole in finite-width plate Central elliptical hole in a member of rectangular cross section (plate) Single circular hole in infinite plate Two equal circular holes in infinite plate Rectangular hole with round corners in infinite plate