New approaches to quantifying tensile strength variability and size effects in unidirectional composites

Wisnom, Michael R. and Cantera, M. Asun and Czél, Gergely and Jalalvand, Meisam; Pipes, R. Byron and Yu, Wenbin and Goodsell, Johnathan, eds. (2017) New approaches to quantifying tensile strength variability and size effects in unidirectional composites. In: 32nd Technical Conference of the American Society for Composites 2017. Destech Publications, USA, pp. 2902-2909. ISBN 9781510853065

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Abstract

Two methods were used to investigate the variability of tensile failure strain of unidirectional high strength carbon/epoxy. Scaled tests on glass/carbon hybrid specimens showed a significant size effect and reduction of failure strain with stressed volume consistent with a Weibull modulus of 25. Ply fragmentation tests were also carried out, producing multiple carbon fractures in a single specimen. Strains from these tests also fitted a Weibull distribution, and gave a similar Weibull modulus to the scaled tests.

ORCID iDs

Jalalvand, Meisam ORCID: https://orcid.org/0000-0003-4691-6252

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• Item metadata

  Item type:	Book Section
  ID code:	67446
  Dates:	Date Event 25 October 2017 Published 3 March 2017 Accepted
  Keywords:	unidirectional composites, tensile strength variability, carbon/epoxy composites, Weibull distribution, Manufactures, Mechanical engineering and machinery, Ceramics and Composites, Mechanics of Materials
  Subjects:	Technology > Manufactures Technology > Mechanical engineering and machinery
  Department:	Faculty of Engineering > Mechanical and Aerospace Engineering
  Depositing user:	Pure Administrator
  Date deposited:	28 Mar 2019 09:40
  Last modified:	23 Sep 2021 01:50
  URI:	https://strathprints.strath.ac.uk/id/eprint/67446