A simplified approach to the damage tolerance design of asymmetric tapered laminates. Part I: Methodology development

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13 Citations (Scopus)

Abstract

Tapered composite laminates are susceptible to interlaminar damage in the form of delaminations growing from ply drop-off locations. This study presents an analytical method for the calculation of the energy release rates associated with interlaminar cracks emanating from the ply termination in both the laminate thick and thin sections, also accounting for the effects of the tapering angle. The proposed approach is based on modeling asymmetrically tapered composite laminates as assemblies of layered Euler–Bernoulli beam segments; these are split and reconnected through-the-thickness at the ply-drop-off location. The presence of a local resin pocket is explicitly considered in the model. Orthotropic rescaling is employed in order to take into account the material behavior through-the-thickness. This paper presents the analytical formulation of the proposed approach, whose validation follows in part II.
Translated title of the contributionA simplified approach to the damage tolerance design of asymmetric tapered laminates. Part I: Methodology development
Original languageEnglish
Pages (from-to)1388 - 1394
Number of pages7
JournalComposites Part A: Applied Science and Manufacturing
Volume41
Issue number10
DOIs
Publication statusPublished - Oct 2010

Bibliographical note

Publisher: Elsevier Ltd

Structured keywords

  • Composites UTC

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