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Influence of z-pinning on the buckling of composite laminates under edge-wise compression

Yan, Wenyi and Liu, H. 2006, Influence of z-pinning on the buckling of composite laminates under edge-wise compression, Key engineering materials, vol. 312, pp. 127-132.

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Title Influence of z-pinning on the buckling of composite laminates under edge-wise compression
Author(s) Yan, Wenyi
Liu, H.
Journal name Key engineering materials
Volume number 312
Start page 127
End page 132
Publisher Trans Tech Publications
Place of publication Aedermannsdorf, Switzerland
Publication date 2006
ISSN 1013-9826
Keyword(s) delamination
computational simulation
z-pin reinforcement
Summary Z-pinning is a newly developed technique to enhance the strength of composite laminates in the thickness direction. Recent experimental and theoretical studies have shown that z-pins significantly improve mode I and mode II fracture toughness. In practice, buckling accompanying delamination is a typical failure mode in laminated composite structures. For a complete understanding of the z-pinning technique towards improvements of the overall mechanical properties of laminated composites, a numerical model is developed in this paper to investigate the influence of z-pins on the buckling composite laminates with initial delaminations under edge-wise compression. The numerical results indicate that z-pinning can indeed effectively increase the compressive strength of the composite laminates provided that the initial imperfection is within a certain range. The magnitude of the improvement is consistent with available experimental data.
Language eng
Field of Research 091202 Composite and Hybrid Materials
HERDC Research category C1 Refereed article in a scholarly journal
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Document type: Journal Article
Collection: School of Engineering and Information Technology
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