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On the role of lengthscale in the prediction of failure of composite structures: assessment and needs

On the role of lengthscale in the prediction of failure of composite structures: assessment and needs
On the role of lengthscale in the prediction of failure of composite structures: assessment and needs
The role of modeling in the design of structural composite components against failure is discussed. Composite materials fail due to damage processes operating at several lengthscales. The interactions between these processes offer the principal challenges to applying mechanism-based models at structural scales beyond the ply level. A methodology is proposed to increase the efficiency of the design process, analogous to the 'building block' approach, which provides a framework for integrating mechanism-based models with the current experimentally-based design process. Available models are reviewed and their key elements identified. General concepts are illustrated via a discussion of the particular issues pertaining to notched components. Key steps needed to allow the evolution of the design process to the envisioned process are identified.
design, composite structures, failure, lengthscale, damage, models
0929-189X
139-149
Spearing, S. Mark
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Lagace, Paul A.
e228f84a-5ff3-4298-9170-73557abec3d3
McManus, Hugh L.N.
74863ce5-d664-46e3-84fe-db741470c5f7
Spearing, S. Mark
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Lagace, Paul A.
e228f84a-5ff3-4298-9170-73557abec3d3
McManus, Hugh L.N.
74863ce5-d664-46e3-84fe-db741470c5f7

Spearing, S. Mark, Lagace, Paul A. and McManus, Hugh L.N. (1998) On the role of lengthscale in the prediction of failure of composite structures: assessment and needs. Applied Composite Materials, 5 (3), 139-149. (doi:10.1023/A:1008876701815).

Record type: Article

Abstract

The role of modeling in the design of structural composite components against failure is discussed. Composite materials fail due to damage processes operating at several lengthscales. The interactions between these processes offer the principal challenges to applying mechanism-based models at structural scales beyond the ply level. A methodology is proposed to increase the efficiency of the design process, analogous to the 'building block' approach, which provides a framework for integrating mechanism-based models with the current experimentally-based design process. Available models are reviewed and their key elements identified. General concepts are illustrated via a discussion of the particular issues pertaining to notched components. Key steps needed to allow the evolution of the design process to the envisioned process are identified.

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More information

Published date: 1998
Keywords: design, composite structures, failure, lengthscale, damage, models

Identifiers

Local EPrints ID: 23090
URI: http://eprints.soton.ac.uk/id/eprint/23090
ISSN: 0929-189X
PURE UUID: 31feb6d5-847b-479b-a0a5-47cdcaddb158
ORCID for S. Mark Spearing: ORCID iD orcid.org/0000-0002-3059-2014

Catalogue record

Date deposited: 01 Feb 2007
Last modified: 26 Nov 2019 01:47

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Contributors

Author: Paul A. Lagace
Author: Hugh L.N. McManus

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