Yield Stress of a Material – Simple Explanation

Yielding of Steel
Yielding of Steel

Yield Stress of a Material – Simple Explanation

Yield of a material is explained as the stress at which a material begins to deform irreversibly. Preceding the yield point, the material will deform elastically, meaning that it will return to its original shape when the applied stress is removed (i.e. no permanent, visible change in the shape of the material).

Yielding of Stel
Yielding of Steel

Once the yield point is passed, however, some of the deformation will be permanent and non-reversible. Knowledge of the yield point is important when designing a component since it normally signifies an upper limit to the load that can be applied.

Not all materials have a well-defined yield region. In the absence of a distinct yield point, a .2% offset is used to obtain an approximate yield point. All deformation before the yield point is uniform throughout the narrow region of the material.

Yielding of Steel _ Stress Strain Curve
Yielding of Steel _ Stress Strain Curve
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About Anand Paul 253 Articles
...an Engineer and Tutor. Anand Paul is a bridge engineer at ch2m Global Design Center, Hyderabad. He is responsible for regional and local design projects. Committed to quality and timely delivery, he has been assigned multiple domain projects in Middle and India. Being a programmer, he is leading in-house spreadsheet development team. Apart from his routine, he runs CivilDigital.com, an exclusive Civil Engineering website.

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