A computational preliminary study on the fracture behaviour of two kinds of finite-size bio-inspired lattice configurations is presented. The study draws inspiration from recent investigations aimed at increasing the fracture energy of some materials through small modifications of their microstructure. Nature provides several examples of strategies used to delay or arrest damage initiation and crack propagation. Striking examples are provided by the micro- architecture of several kinds of wood. In this study, the effects on crack propagations induced by architectural alterations inspired by the microstructure of wood are computationally investigated. In an age in which tight control of the micro-architecture can be achieved, e.g. through high-resolution 3D printing, it is of interest to investigate whether, starting from a baseline cellular architecture, it is possible to achieve superior material performance by simple but smart topological modifications.

Manno R., Gao W., Benedetti I. (2018). A computational study on crack propagation in bio-inspired lattices. In Key Engineering Materials - Advances in Fracture and Damage Mechanics XVII (pp. 398-404). Trans Tech Publications Ltd [10.4028/www.scientific.net/KEM.774.398].

A computational study on crack propagation in bio-inspired lattices

Benedetti I.
2018-01-01

Abstract

A computational preliminary study on the fracture behaviour of two kinds of finite-size bio-inspired lattice configurations is presented. The study draws inspiration from recent investigations aimed at increasing the fracture energy of some materials through small modifications of their microstructure. Nature provides several examples of strategies used to delay or arrest damage initiation and crack propagation. Striking examples are provided by the micro- architecture of several kinds of wood. In this study, the effects on crack propagations induced by architectural alterations inspired by the microstructure of wood are computationally investigated. In an age in which tight control of the micro-architecture can be achieved, e.g. through high-resolution 3D printing, it is of interest to investigate whether, starting from a baseline cellular architecture, it is possible to achieve superior material performance by simple but smart topological modifications.
2018
Settore ING-IND/04 - Costruzioni E Strutture Aerospaziali
Manno R., Gao W., Benedetti I. (2018). A computational study on crack propagation in bio-inspired lattices. In Key Engineering Materials - Advances in Fracture and Damage Mechanics XVII (pp. 398-404). Trans Tech Publications Ltd [10.4028/www.scientific.net/KEM.774.398].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/375623
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