eprintid: 2046 rev_number: 9 eprint_status: archive userid: 56 dir: disk0/00/00/20/46 datestamp: 2013-12-04 15:43:07 lastmod: 2014-10-09 09:20:24 status_changed: 2013-12-04 15:43:07 type: article metadata_visibility: show creators_name: Paggi, Marco creators_id: marco.paggi@imtlucca.it title: Structural integrity of hierarchical composites ispublished: pub subjects: TJ divisions: CSA full_text_status: public keywords: Hierarchical composites; Fracture mechanics; Finite element method; Cohesive zone model 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 date: 2012 date_type: published publication: Frattura ed Integrità Strutturale volume: 19 publisher: Gruppo Italiano Frattura pagerange: 29-36 id_number: 10.3221/IGF-ESIS.19.03 refereed: TRUE issn: 1971-8993 official_url: http://www.gruppofrattura.it/pdf/fig/numero19/index.html#/30/ citation: Paggi, Marco Structural integrity of hierarchical composites. Frattura ed Integrità Strutturale, 19. pp. 29-36. ISSN 1971-8993 (2012) document_url: http://eprints.imtlucca.it/2046/1/numero_19_art_3_Paggi_2012.pdf