Numerical study on buckling of Z-pinned composite laminates

Yan, Wenyi and Liu, Hong-Yuan and Mai, Yiu-Wing (2004) Numerical study on buckling of Z-pinned composite laminates. In: 4th Asian-Australasian Conference on Composite Materials (ACCM 4), 6-9 Jul 2004, Sydney, Australia.


Z-pinning is a newly developed technique to enhance the strength of composite laminates in the thickness direction. Recent experimental and theoretical researches manifest that z-pins can significantly improve mode I fracture toughness in double cantilever-beam tests and mode II fracture toughness in end-notched-flexure beam tests. From a practical point of view, buckling accompanying delamination is a typical failure mode in laminated composite structures. For the purpose of a complete understanding on the z-pinning technique towards an improvement of the mechanical behaviour of laminated composites, in the present study, a numerical approach is applied to investigate the buckling of z-pinned composite laminates with initial delaminations under compression. The numerical results indicate that z-pinning can effectively increase the compressive strength of composite laminates provided that the initial imperfection is within a certain range. The magnitude of the improvement is consistent with available experimental data.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2004 Woodhead Publishing Limited. Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming and recording, or by any information storage or retrieval system, without permission in writing from the publisher.
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 08 May 2015 05:50
Last Modified: 02 Jun 2015 05:49
Uncontrolled Keywords: lamination; delamination
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870399 Construction Materials Performance and Processes not elsewhere classified
Identification Number or DOI: 10.1016/B978-1-85573-831-7.50056-0

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