2 results about "Crack tip opening displacement" patented technology

Crack tip opening displacement (CTOD) or δₜ is the distance between the opposite faces of a crack tip at the 90° intercept position. The position behind the crack tip at which the distance is measured is arbitrary but commonly used is the point where two 45° lines starting at the crack tip and intercepting the crack faces. The parameter is used in Fracture mechanics to characterise the loading on a crack and can be related to other crack tip loading parameters such as the stress intensity factor K and the elastic-plastic J-integral.