TY - JOUR SN - 1971-8993 AV - public TI - Structural integrity of hierarchical composites SP - 29 N2 - 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 ID - eprints2046 EP - 36 PB - Gruppo Italiano Frattura VL - 19 JF - Frattura ed Integrità Strutturale UR - http://www.gruppofrattura.it/pdf/fig/numero19/index.html#/30/ A1 - Paggi, Marco Y1 - 2012/// KW - Hierarchical composites; Fracture mechanics; Finite element method; Cohesive zone model ER -