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A pseudo ductile angle-ply sub-laminate approach for multidirectional thin ply CFRP laminates: 17th European Conference on Composite Materials, ECCM 2016

A pseudo ductile angle-ply sub-laminate approach for multidirectional thin ply CFRP laminates: 17th European Conference on Composite Materials, ECCM 2016
A pseudo ductile angle-ply sub-laminate approach for multidirectional thin ply CFRP laminates: 17th European Conference on Composite Materials, ECCM 2016
Analytical modelling of thin ply angle-ply [±θ/0]s carbon-epoxy layups consisting of intermediate modulus MR60 and ultra high modulus YSH70A prepreg materials has been conducted to establish a candidate configuration for use as a pseudo-ductile sub-laminate in a multidirectional laminate. These layups have demonstrated considerable pseudo-ductility via gradual failure of the 0° ply. Stress-strain predictions of [±25/0]s, in particular, have shown that this layup possesses a high initial modulus of 135 GPa and produce a pseudo-ductile strain of 1.43%, for a strength of 761 MPa. Selected as a sub-laminate configuration, this layup has been applied to two stacking sequences: [30/0/ - 30]s and [45/0/ - 45]s, where the global orientations correspond to the direction of the 0° ply in each sub-laminate. Classical laminate analysis indicates that these multidirectional laminates can exploit the pseudo-ductility of the sub-laminates to achieve a gradual failure at a higher scale.
gradual failure, pseudo-ductility, thin ply
European Conference on Composite Materials, ECCM
Fuller, Jonathan D.
2ae99fe1-a6cd-4769-a45b-a9ee45a47f0b
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Fuller, Jonathan D.
2ae99fe1-a6cd-4769-a45b-a9ee45a47f0b
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a

Fuller, Jonathan D., Jalalvand, Meisam and Wisnom, Michael R. (2016) A pseudo ductile angle-ply sub-laminate approach for multidirectional thin ply CFRP laminates: 17th European Conference on Composite Materials, ECCM 2016. In 17th European Conference on Composite Materials, ECCM 2016. European Conference on Composite Materials, ECCM..

Record type: Conference or Workshop Item (Paper)

Abstract

Analytical modelling of thin ply angle-ply [±θ/0]s carbon-epoxy layups consisting of intermediate modulus MR60 and ultra high modulus YSH70A prepreg materials has been conducted to establish a candidate configuration for use as a pseudo-ductile sub-laminate in a multidirectional laminate. These layups have demonstrated considerable pseudo-ductility via gradual failure of the 0° ply. Stress-strain predictions of [±25/0]s, in particular, have shown that this layup possesses a high initial modulus of 135 GPa and produce a pseudo-ductile strain of 1.43%, for a strength of 761 MPa. Selected as a sub-laminate configuration, this layup has been applied to two stacking sequences: [30/0/ - 30]s and [45/0/ - 45]s, where the global orientations correspond to the direction of the 0° ply in each sub-laminate. Classical laminate analysis indicates that these multidirectional laminates can exploit the pseudo-ductility of the sub-laminates to achieve a gradual failure at a higher scale.

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More information

Published date: 30 June 2016
Venue - Dates: 17th European Conference on Composite Materials, ECCM 2016, , Munich, Germany, 2016-06-26 - 2016-06-30
Keywords: gradual failure, pseudo-ductility, thin ply

Identifiers

Local EPrints ID: 446768
URI: http://eprints.soton.ac.uk/id/eprint/446768
PURE UUID: 820dc512-f4ba-4766-bb8a-b5d230b65367
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 22 Feb 2021 17:31
Last modified: 23 Feb 2021 02:58

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Contributors

Author: Jonathan D. Fuller
Author: Michael R. Wisnom

University divisions

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