Analysis of Stresses and Strains near the End of a Crack Traversing a Plate.¶
Irwin, G. R. (1957). Analysis of Stresses and Strains near the End of a Crack Traversing a Plate. Journal of Applied Mechanics, 24, 361-364.
Cited by¶
1 citation across 1 artifact.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Fracture Toughness
- The characteristic threshold falls straight out of the energy balance: the crack runs when the energy released per unit advance exceeds the energy absorbed, which the stress-intensity factor \(K = \sigma\sqrt{\pi a}\) captures — once \(K\) reaches the material's fracture toughness \(K_{IC}\), propagation becomes catastrophic; below it, the crack is stable.
This sourceIntroduces the stress-intensity factor K and the critical fracture toughness K_IC as the threshold separating stable cracks from catastrophic propagation.
Supported in partVerified against the publisher's abstract
The abstract establishes the stress-intensity factor's existence and its square-root dependence on crack-extension force, but not the energy balance or the K_IC threshold.
“It is shown that the other parameter, called the stress-intensity factor, is proportional to the square root of the force tending to cause crack extension.”
- The characteristic threshold falls straight out of the energy balance: the crack runs when the energy released per unit advance exceeds the energy absorbed, which the stress-intensity factor \(K = \sigma\sqrt{\pi a}\) captures — once \(K\) reaches the material's fracture toughness \(K_{IC}\), propagation becomes catastrophic; below it, the crack is stable.
Verification¶
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