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New approaches to quantifying tensile strength variability and size effects in unidirectional composites: 32nd Technical Conference of the American Society for Composites 2017

New approaches to quantifying tensile strength variability and size effects in unidirectional composites: 32nd Technical Conference of the American Society for Composites 2017
New approaches to quantifying tensile strength variability and size effects in unidirectional composites: 32nd Technical Conference of the American Society for Composites 2017
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.
unidirectional composites, tensile strength variability, carbon/epoxy composites, Weibull distribution
2902-2909
DEStech Publications Inc.
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Cantera, M. Asun
8fdabaa4-cb97-4d48-950a-10f17157a278
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Pipes, R. Byron
e36afb84-e4c0-4c38-aa68-6eb91df72ac5
Yu, Wenbin
8f1dd191-99a2-4b9a-98e8-a1eb73ee511b
Goodsell, Johnathan
e15f4779-f859-48b9-be79-f06172e29a90
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Cantera, M. Asun
8fdabaa4-cb97-4d48-950a-10f17157a278
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Pipes, R. Byron
e36afb84-e4c0-4c38-aa68-6eb91df72ac5
Yu, Wenbin
8f1dd191-99a2-4b9a-98e8-a1eb73ee511b
Goodsell, Johnathan
e15f4779-f859-48b9-be79-f06172e29a90

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

Record type: Book Section

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.

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More information

Published date: 25 October 2017
Keywords: unidirectional composites, tensile strength variability, carbon/epoxy composites, Weibull distribution

Identifiers

Local EPrints ID: 446797
URI: http://eprints.soton.ac.uk/id/eprint/446797
PURE UUID: 29065979-1333-4bf9-a32c-c52ab701b78b
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 23 Feb 2021 17:30
Last modified: 24 Feb 2021 02:58

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Contributors

Author: Michael R. Wisnom
Author: M. Asun Cantera
Author: Gergely Czél
Editor: R. Byron Pipes
Editor: Wenbin Yu
Editor: Johnathan Goodsell

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