A continuum model for composite materials made of short, stiff and tough fibres embedded in a more deformable matrix with distributed microflaws is proposed. Based on the kinematics of a lattice system made of fibres, perceived as rigid inclusions, and of microflaws, represented by slit microcracks, the stress-strain relations of an equivalent multifield continuum is obtained. These relations account for the shape and the orientation of the internal phases and include internal scale parameters, which allow taking into account size effects. Some numerical analyses effected on a sample fibre-reinforced composite pointed out the influence of the size and orientation of the fibres on the gross behaviour of the material.

A multiscale approach for composite materials as multifield continua / Trovalusci, Patrizia; Sansalone, Vittorio; Cleri, Fabrizio. - 539-543:PART 3(2007), pp. 2551-2556. (Intervento presentato al convegno 5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 tenutosi a Vancouver, can).

A multiscale approach for composite materials as multifield continua

Trovalusci, Patrizia;
2007

Abstract

A continuum model for composite materials made of short, stiff and tough fibres embedded in a more deformable matrix with distributed microflaws is proposed. Based on the kinematics of a lattice system made of fibres, perceived as rigid inclusions, and of microflaws, represented by slit microcracks, the stress-strain relations of an equivalent multifield continuum is obtained. These relations account for the shape and the orientation of the internal phases and include internal scale parameters, which allow taking into account size effects. Some numerical analyses effected on a sample fibre-reinforced composite pointed out the influence of the size and orientation of the fibres on the gross behaviour of the material.
2007
5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
Constitutive models; Fibre-reinforced composites; Micro-mechanical modelling; Materials Science (all); Condensed Matter Physics; Mechanics of Materials; Mechanical Engineering
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
A multiscale approach for composite materials as multifield continua / Trovalusci, Patrizia; Sansalone, Vittorio; Cleri, Fabrizio. - 539-543:PART 3(2007), pp. 2551-2556. (Intervento presentato al convegno 5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 tenutosi a Vancouver, can).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1150223
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