A computationally-efficient hierarchical scaling law to predict damage accumulation in composite fibre-bundles
File(s)
Author(s)
Pimenta, S
Type
Journal Article
Abstract
Unidirectional composites under longitudinal tension develop damage through the accumulation and clustering of fibre–breaks, which may lead to catastrophic failure of an entire structure. This paper uses a hierarchical scaling law to predict the kinetics of fibre–breakage and its effect on the stress–strain response of composites under longitudinal tension; due to its analytical formulation based on the statistical analysis of hierarchical fibre–bundles, the scaling law predicts the response of composite bundles up to virtually any size in less than one second. Model predictions for the accumulation and clustering of fibre–breaks are successfully validated against experiments from the literature. These results show that the present model is a much more computationally–efficient alternative to other state–of–the–art models based on Monte–Carlo simulations, without sacrificing the accuracy of predictions when compared against experiments.
Date Issued
2017-07-07
Date Acceptance
2017-04-13
Citation
Composites Science and Technology, 2017, 146 (1), pp.210-225
ISSN
0266-3538
Publisher
Elsevier
Start Page
210
End Page
225
Journal / Book Title
Composites Science and Technology
Volume
146
Issue
1
Copyright Statement
© 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Royal Academy of Engineering
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000403120000027&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
RF/133
Subjects
Science & Technology
Technology
Materials Science, Composites
Materials Science
Polymer-matrix composites
Fragmentation
Stress/strain curves
Modelling
Probabilistic methods
UNIDIRECTIONAL CFRP COMPOSITES
REINFORCED COMPOSITES
TENSILE-STRENGTH
COMPUTED-TOMOGRAPHY
STRESS-CONCENTRATIONS
FIBROUS COMPOSITES
ELASTIC MATRIX
CARBON-FIBERS
EPOXY-RESIN
MODEL
Publication Status
Published
Date Publish Online
2017-04-18