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.
2012
Proceedings of the 23rd International Congress of Theoretical and Applied Mechanics. Beijing, Cina, 19-24 agosto 2012
978-988-16022-3-7
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/33441
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