The mode I crack growth resistance of 3-layer, 5-layer and multi-layer elastic-plastic composites containing a semi-infinite crack is computed under plane strain conditions. In all cases, the central cracked layer is elastic, while the outer layers can be elastic or elastic-plastic. The degree of toughening due to non-proportional straining in the elastic-plastic layers is assessed for both the isotropic case and for the anisotropic solid (Hill model). Anisotropy can lead to much enhanced toughening.
Composite toughening by layering
Noselli, Giovanni;
2012-01-01
Abstract
The mode I crack growth resistance of 3-layer, 5-layer and multi-layer elastic-plastic composites containing a semi-infinite crack is computed under plane strain conditions. In all cases, the central cracked layer is elastic, while the outer layers can be elastic or elastic-plastic. The degree of toughening due to non-proportional straining in the elastic-plastic layers is assessed for both the isotropic case and for the anisotropic solid (Hill model). Anisotropy can lead to much enhanced toughening.File in questo prodotto:
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