In solid mechanics, a stress concentration (also called a stress raiser or a stress riser or notch sensitivity) is a location in an object where the stress is significantly greater than the surrounding region. Stress concentrations occur when there are irregularities in the geometry or material of a structural component that cause an ...

Stress concentration is defined as - Localized stress considerably higher than average (even in uniformly loaded cross sections of uniform thickness) due to abrupt changes in geometry or localized loading. Stress concentration is often called "stress raisers" or "stress risers"

In order to consider the effect of stress concentration and find out localized stresses, a factor called theoretical stress concentration factor is used. It is denoted by Kt and defined as, Kt= Highest value of actual stress near discontinuity / Nominal …

Stress Concentrations • A “stress concentration” refers to an area in a object where stress increases over a very short distance (i.e., where a high stress gradient exists) • Stress concentrations typically occur due to some localized change in geometry (near holes, filets, corners, grooves, cracks, etc)

Generally, more abrupt the change in geometric form, higher is the stress concentration effect. Because stress concentration increases mechanical stress, a better design approach is to strive to reduce stress concentration effect at the critical stressed areas.

A stress concentration is a localized area in a structure at which the stress is significantly higher than in the surrounding material. It can conveniently be conceived as a disturbance or a discontinuity in the smooth flow of the lines of stress such as a stick placed in a fast flowing stream would cause in the water flow.

In this tutorial, we will examine the standard method of accounting for stress concentrations caused by geometric features. Specifically, we will discuss the application of a theoretical or geometric stress-concentration factor for determination of the …

Calculate the nominal stress and the maximum stress. Maximum stress determination will require you to first calculate the stress concentration factor, Kt, that accounts for the reduction of cross- sectional area, and the notch sensitivity, q.

The effects of stress raisers are usually given in terms of a stress concentration factor, K, which is the factor by which the stress at the considered discontinuity is raised over the nominal stress in the area of the discontinuity.

Stress concentration refers to the increased level of applied stress that develops at abrupt changes in a section such as sharp transitions, abrupt changes in weld profile, sharp corners, notches, and cracks.