Estimate of the latent free energy and damage at the tip of an opening-mode crack (Q2714053)
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scientific article; zbMATH DE number 1603316
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Estimate of the latent free energy and damage at the tip of an opening-mode crack |
scientific article; zbMATH DE number 1603316 |
Statements
10 June 2001
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highly localized plastic flow
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magnitude of a crack opening
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steel plate
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plane stresses
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Estimate of the latent free energy and damage at the tip of an opening-mode crack (English)
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A method is proposed for estimating the latent elastic energy associated with the microinhomogeneity of the stress and plastic-strain fields inside the plastic zone localized near the tip of an opening-mode crack (Dugdale zone) under conditions of plane stresses. The microinhomogeneity of a plastic flow upon small strain hardening is taken into account only in the form of considerable distortion of the geometry of the free surfaces of the plastic zone. The damage that develops due to the release of the latent free energy is estimated depending on the magnitude of the crack opening.
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