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Fatigue crack growth prediction in GLARE hybrid laminates

Fatigue crack growth prediction in GLARE hybrid laminates
Fatigue crack growth prediction in GLARE hybrid laminates
A mechanistic approach for fatigue crack growth prediction in GLARE laminates is presented. Three-dimensional finite element models are used to obtain the mode I stress intensity factor, KI, in the aluminum layers, and the fatigue crack growth rate of monolithic aluminum expressed as a Paris-type power law is used to predict the crack growth rates in the GLARE laminates. The crack growth rates in three different types of GLARE laminates with center-cracked tension configurations under cyclic loads are predicted and compared with experimental results. Qualitatively, the current approach predicts that the crack growth rate remains approximately constant with crack length, which is consistent with experimental observations. The quantitative correlations with the experimental crack growth rates also show excellent agreement. It is also found that the stress intensity factors in the aluminum layers at different through-thickness locations in the GLARE laminates are not identical. The cause and implications of this discrepancy and the advantages of the current approach to predict crack growth rates in generic hybrid laminates are discussed.
fatigue, crack, delamination, finite element analysis, hybrid laminates
0266-3538
1759-1767
Shim, D.J.
f8257610-c0da-4fbc-812b-e4981d10ea6b
Burianek, D.A.
21d8bccb-f473-41a4-ad90-de7c559e1529
Anderlisten, R.
104359c9-fbfa-4842-9b56-e2f47bae75ce
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Shim, D.J.
f8257610-c0da-4fbc-812b-e4981d10ea6b
Burianek, D.A.
21d8bccb-f473-41a4-ad90-de7c559e1529
Anderlisten, R.
104359c9-fbfa-4842-9b56-e2f47bae75ce
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a

Shim, D.J., Burianek, D.A., Anderlisten, R. and Spearing, S.M. (2003) Fatigue crack growth prediction in GLARE hybrid laminates. Composites Science and Technology, 63 (12), 1759-1767. (doi:10.1016/S0266-3538(03)00082-4).

Record type: Article

Abstract

A mechanistic approach for fatigue crack growth prediction in GLARE laminates is presented. Three-dimensional finite element models are used to obtain the mode I stress intensity factor, KI, in the aluminum layers, and the fatigue crack growth rate of monolithic aluminum expressed as a Paris-type power law is used to predict the crack growth rates in the GLARE laminates. The crack growth rates in three different types of GLARE laminates with center-cracked tension configurations under cyclic loads are predicted and compared with experimental results. Qualitatively, the current approach predicts that the crack growth rate remains approximately constant with crack length, which is consistent with experimental observations. The quantitative correlations with the experimental crack growth rates also show excellent agreement. It is also found that the stress intensity factors in the aluminum layers at different through-thickness locations in the GLARE laminates are not identical. The cause and implications of this discrepancy and the advantages of the current approach to predict crack growth rates in generic hybrid laminates are discussed.

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More information

Published date: 2003
Keywords: fatigue, crack, delamination, finite element analysis, hybrid laminates

Identifiers

Local EPrints ID: 22783
URI: http://eprints.soton.ac.uk/id/eprint/22783
ISSN: 0266-3538
PURE UUID: 5fbe2671-0703-415c-b78f-c35b5a239ef9
ORCID for S.M. Spearing: ORCID iD orcid.org/0000-0002-3059-2014

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Date deposited: 10 Mar 2006
Last modified: 16 Mar 2024 03:37

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Contributors

Author: D.J. Shim
Author: D.A. Burianek
Author: R. Anderlisten
Author: S.M. Spearing ORCID iD

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