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- Crack tip opening displacement (CTOD) or 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, intersect the crack faces. The parameter is used in fracture mechanics to characterize the loading on a crack and can be related to other crack tip loading parameters such as the stress intensity factor and the elastic-plastic J-integral. For plane stress conditions, the CTOD can be written as: where is the yield stress, is the crack length, is the Young's modulus , and is the remote applied stress. Under fatigue loading, the range of movement of the crack tip during a loading cycle can be used for determining the rate of fatigue growth using a crack growth equation. The crack extension for a cycle , is typically of the order of . (en)
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- 7426 (xsd:nonNegativeInteger)
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- Crack tip opening displacement (CTOD) or 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, intersect the crack faces. The parameter is used in fracture mechanics to characterize the loading on a crack and can be related to other crack tip loading parameters such as the stress intensity factor and the elastic-plastic J-integral. For plane stress conditions, the CTOD can be written as: (en)
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- Crack tip opening displacement (en)
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