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The influence of the stress state on the plastic zone size |
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| Authors: | D Aurich |
| Affiliation: | Bundesanstalt für Materialprüfung, 1, Berlin 45, Germany |
| Abstract: | “Linear elastic” fracture mechanics is based on the “plane strain” condition which means dεzz = 0. Really stress states can occur in structures or components where dεzz > 0. Two examples are discussed. Using the v. Mises criterion and the Sneddon equations the influence of an external stress σezz acting parallel to the crack front on the plastic zone size is calculated and demonstrated by examples. |
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