Structural integrity of hierarchical composites

Paggi, Marco Structural integrity of hierarchical composites. Frattura ed Integrità Strutturale, 19. pp. 29-36. ISSN 1971-8993 (2012)

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Abstract

Interface mechanical problems are of paramount importance in engineering and materials science. Traditionally, due to the complexity of modelling their mechanical behaviour, interfaces are often treated as defects and their features are not explored. In this study, a different approach is illustrated, where the interfaces play an active role in the design of innovative hierarchical composites and are fundamental for their structural integrity. Numerical examples regarding cutting tools made of hierarchical cellular polycrystalline materials are proposed, showing that tailoring of interface properties at the different scales is the way to achieve superior mechanical responses that cannot be obtained using standard materials

Item Type:	Article
Identification Number:	10.3221/IGF-ESIS.19.03
Uncontrolled Keywords:	Hierarchical composites; Fracture mechanics; Finite element method; Cohesive zone model
Subjects:	T Technology > TJ Mechanical engineering and machinery
Research Area:	Computer Science and Applications
Depositing User:	Prof Marco Paggi
Date Deposited:	04 Dec 2013 15:43
Last Modified:	09 Oct 2014 09:20
URI:	http://eprints.imtlucca.it/id/eprint/2046

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