Finite element determination of beam surface stresses due to multiple delamination

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Abstract

The finite element method is used to analyse the through-the-width stress distribution characteristics of single and multiple delaminated cantilevered composite beams. Single delaminations of fixed length, which are located at different through-the-thickness locations, and multiple delaminations of sequential and diagonal configurations are investigated. The total length of multiple delaminations in a beam was made equal to the fixed length of a single delamination. The results show that the configurations and spatial distributions of multiple delaminations have significant effects on the magnitude of the maximum stresses induced in the beams. Beams in which most of the delaminations are concentrated around the mid-plane of the beam show higher stresses than beams in which most of the delaminations are concentrated close to the surface of the laminate. However, delaminations close to the surfaces of the beams exhibit higher stresses at the tips of the delaminations. © 2009 by ASME.
Original languageEnglish
Title of host publicationProceedings of the ASME Design Engineering Technical Conference|Proc. ASME Des. Eng. Tech. Conf.
Place of PublicationUSA
PublisherAmerican Society of Mechanical Engineers
Pages685-694
Number of pages9
Volume3
ISBN (Print)9780791849002
DOIs
Publication statusPublished - 2009
EventASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - San Diego, United States
Duration: 1 Jul 20091 Jul 2009

Conference

ConferenceASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Abbreviated titleIDETC/CIE2009
Country/TerritoryUnited States
CitySan Diego
Period1/07/091/07/09

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