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A computationally-efficient hierarchical scaling law to predict damage accumulation in composite fibre-bundles
File | Description | Size | Format | |
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2017 Pimenta - damage accumulation in fibre bundles - preprint.pdf | Accepted version | 6.2 MB | Adobe PDF | View/Open |
Title: | A computationally-efficient hierarchical scaling law to predict damage accumulation in composite fibre-bundles |
Authors: | Pimenta, S |
Item 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. |
Issue Date: | 7-Jul-2017 |
Date of Acceptance: | 13-Apr-2017 |
URI: | http://hdl.handle.net/10044/1/50896 |
DOI: | 10.1016/j.compscitech.2017.04.018 |
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/Funder: | Royal Academy of Engineering |
Funder's Grant Number: | RF/133 |
Keywords: | 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 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 Materials 09 Engineering |
Publication Status: | Published |
Online Publication Date: | 2017-04-18 |
Appears in Collections: | Mechanical Engineering Faculty of Engineering |