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Mechanics of Composite Materials
Published in: Mechanics of Composite Materials 1/2014

01-03-2014

Assessment of the Stability of a Surface Crack in Laminates

Authors: P. Hutař, M. Ševčík, L. Náhlík, M. Zouhar, Z. Knésl

Published in: Mechanics of Composite Materials | Issue 1/2014

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Abstract

The critical configuration of a crack arrested at a bimaterial interface is estimated. The stability of the crack in the soft material, whose front is situated at the interface between soft and stiff materials and who grows continuously sideways, is analyzed. A laminate with an ABAB structure containing a surface crack is considered in this study. The effective value of the stress intensity factor for the central segment of the crack front lying at the material interface is calculated for various geometrical and material configurations. Comparing the effective value of the factor with the corresponding threshold values, the stability of the configuration studied can be assessed. It is found that a 3D solution for estimating the effective stress intensity factor is necessary to describe the crack behavior at the interface even for a relatively shallow crack. The results presented can be helpful for the inspection of lamellar structures.
previous article Fatigue Resistance of Structurally Inhomogeneous Powdered Materials in a Complex Stress-Strain State
next article Postcritical Deformation of Multilayered Plates of Regular Structure

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Metadata
Title
Assessment of the Stability of a Surface Crack in Laminates
Authors
P. Hutař
M. Ševčík
L. Náhlík
M. Zouhar
Z. Knésl
Publication date
01-03-2014
Publisher
Springer US
Published in
Mechanics of Composite Materials / Issue 1/2014
Print ISSN: 0191-5665
Electronic ISSN: 1573-8922
DOI
https://doi.org/10.1007/s11029-014-9388-0

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