In materials science and engineering, the yield point is the point on a stress–strain curve that indicates the limit of elastic behavior and the beginning of plastic behavior. Below the yield point, a material will deform elastically 展开

It is often difficult to precisely define yielding due to the wide variety of stress–strain curves exhibited by real materials. In addition, there are several possible ways to define yielding:
True elastic limit The lowest stress at which dislocations move. … 展开

Yield strength testing involves taking a small sample with a fixed cross-section area and then pulling it with a controlled, gradually increasing force until the sample changes shape or breaks. … 展开

During monotonic tensile testing, some metals such as annealed steel exhibit a distinct upper yield point or a delay in work hardening. These tensile testing phenomena, wherein the … 展开

Yielded structures have a lower stiffness, leading to increased deflections and decreased buckling strength. The structure will be permanently deformed when the load is removed, and may … 展开

There are several ways in which crystalline materials can be engineered to increase their yield strength. By altering dislocation density, … 展开

The theoretical yield strength of a perfect crystal is much higher than the observed stress at the initiation of plastic flow.
That experimentally measured yield strength is significantly lower than the expected theoretical value can be explained by the … 展开