Analytical prediction model for non-symmetric fatigue crack growth in Fibre Metal Laminates

Journal Article (2017)
Author(s)

W Wang (TU Delft - Structural Integrity & Composites)

Calvin David Rans (TU Delft - Structural Integrity & Composites)

Rinze Rinze (TU Delft - Aerospace Structures & Materials)

Research Group
Structural Integrity & Composites
Copyright
© 2017 W. Wang, C.D. Rans, R. Benedictus
DOI related publication
https://doi.org/10.1016/j.ijfatigue.2017.06.035
More Info
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Publication Year
2017
Language
English
Copyright
© 2017 W. Wang, C.D. Rans, R. Benedictus
Research Group
Structural Integrity & Composites
Volume number
103
Pages (from-to)
546-556
Reuse Rights

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Abstract

This paper proposes an analytical model for predicting the non-symmetric crack growth and accompanying delamination growth in FMLs. The general approach of this model applies Linear Elastic Fracture Mechanics, the principle of superposition, and displacement compatibility based on the understanding of deformation behaviour in eccentrically cracked metal panels. The non-symmetric crack growth behaviour of two crack tips and accompanying asymmetric load transfer from the eccentrically cracked metal layers to the intact bridging fibres are successfully predicted with the model. The predicted crack growth rates and delamination evolution are compared to test data, good correlation is observed.

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