Experimental verification and theoretical simulation of fracture behaviours of composite materials

N. Bonora, A. La Barbera, M. Marchetti, P. Milella

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5 Citations (Scopus)

Abstract

The paper presents an experimental and analytical study of composite laminates subjected to cyclic loads. Experimental results indicate that transverse crack formation jeopardizes the load carrying capability of the laminates by decreasing the elastic moduli of the material even though the number of transverse cracks seems to saturate at each load amplitude with the number of cycles. Experimental results are compared with theoretical predictions. A microscopic model has been developed to predict the micro-behaviour of the composite through the formation and coalescence of voids related to the stress concentration in the neighbourhood of fibres and to the stress singularity due to an edge macro-crack. In addition, a 3D FE analysis has been developed in order to evaluate the elastic stress fields within a multi-layer body which provides the actual boundary stresses for micro-damage analyses of the considered microelement. © 1993.
Original languageEnglish
Pages (from-to)87 - 97
Number of pages11
JournalComposite Structures
Volume23
Issue number2
DOIs
Publication statusPublished - 1993
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Civil and Structural Engineering

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