What is yield point and why it is so named?
Yield point is also known as elastic limit. Beyond the elastic limit, when the load is increased, a stress is reached where the material continues to deform without any further increase in load. This point is called yield point. Since at yield point the deformation continues to increase without increase in stress, thus it may be said that there is total surrender of material to stress. The synonym of surrender is yield, that is why this point is called yield point.
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