Stress Intensity (other)
Stress intensity can refer to: * Stress intensity factor In fracture mechanics, the stress intensity factor () is used to predict the Stress (mechanics), stress state ("stress intensity") near the tip of a Fracture, crack or Notch (engineering), notch caused by a remote load or residual stresses. It i ... in fracture mechanics * Tresca effective stress (after Henri Tresca) in material yielding {{Disambig ...
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Stress Intensity Factor
In fracture mechanics, the stress intensity factor () is used to predict the Stress (mechanics), stress state ("stress intensity") near the tip of a Fracture, crack or Notch (engineering), notch caused by a remote load or residual stresses. It is a theoretical construct usually applied to a homogeneous, linear Elasticity (physics), elastic material and is useful for providing a Material failure theory, failure criterion for Brittleness, brittle materials, and is a critical technique in the discipline of damage tolerance. The concept can also be applied to materials that exhibit ''small-scale yield (engineering), yielding'' at a crack tip. The magnitude of depends on specimen geometry, the size and location of the crack or notch, and the magnitude and the distribution of loads on the material. It can be written as: :K = \sigma \sqrt \, f(a/W) where f(a/W) is a specimen geometry dependent function of the crack length, , and the specimen width, , and is the applied stress. Lin ...
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