Experimental study of the effect of automated fiber placement induced defects on performance of composite laminates

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DOIResolve DOI: http://doi.org/10.1016/j.compositesa.2011.01.007
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TypeArticle
Journal titleComposites Part A: Applied Science and Manufacturing
ISSN1359-835X
Volume42
Issue5
Pages484491; # of pages: 8
SubjectA. Tow; B. Defects; Baseline configurations; C. Mechanical properties; Composite laminate; D. Mechanical testing; Defect type; Experimental studies; Fiber compression; Fiber placement; In-plane shear; Induced defects; Mechanical performance; Minimal effects; Open holes; Ultimate strength; Defects; Fibers; Laminates; Mechanical engineering; Mechanical testing; Structure (composition); Mechanical properties
AbstractThe Automated Fiber placement (AFP) process shows great potential for efficient manufacturing of large composite structures. However, uncertainties exist on mechanical performance of final product that are associated with the process induced defects. This experimental work investigates the effect of four principal defect types, namely gap, overlap, half gap/overlap and twisted tow on the ultimate strengths. Tests are executed at the lamina level (fiber tension, fiber compression and in-plane shear), as well as at the laminate level (open hole tension and open hole compression). Then each test is compared with a baseline configuration exempt from defects. Tests have revealed the minimal effects of a single and isolated defects on mechanical performance especially at the lamina level (around 5%) compared to the laminate level (up to 13%). © 2011 Elsevier Ltd. All rights reserved.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace (AERO-AERO)
Peer reviewedYes
NPARC number21271143
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Record identifier8ae2f25e-f72b-456c-95b5-a64c20188c97
Record created2014-03-24
Record modified2016-05-09
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