Experimental study on z-pin bridging law by pullout test
Article
Article Title | Experimental study on z-pin bridging law by pullout test |
---|---|
ERA Journal ID | 4884 |
Article Category | Article |
Authors | Dai, Shao-Cong (Author), Yan, Wenyi (Author), Liu, Hong-Yuan (Author) and Mai, Yiu-Wing (Author) |
Journal Title | Composites Science and Technology |
Journal Citation | 64 (16), pp. 2451-2457 |
Number of Pages | 7 |
Year | 2004 |
Publisher | Elsevier |
Place of Publication | Oxford, United Kingdom |
ISSN | 0266-3538 |
1879-1050 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compscitech.2004.04.005 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0266353804001411 |
Abstract | This paper presents an experimental study on the evaluation of bridging law for a z-pin. The relationship between the z-pin bridging force and its displacement was measured by z-pin pullout tests. The tests were carried out using three types of samples with: single small pin; 3X3 small-pins (three columns x three rows) and 3X3 big-pins. For 3 X 3 small-pins samples, a typical pullout curve with initial bonding, debonding and frictional sliding was obtained. A high peak value of the debonding force was reached before z-pin debonding started. After debonding was initiated, the pull-out force dropped rapidly to a lower value, the pins were then pulled out steadily against friction. However, for samples with 3 X 3 big-pins, it was difficult to discern the peak debonding force. The major results of this study are expected to provide a better physical understanding of the mechanics and mechanisms of z-pin bridging, aside from an efficient and accurate methodology to measure the crack-bridging law. |
Keywords | Z-pin reinforcement; pullout test; bridging law; interfacial debonding; interfacial friction |
ANZSRC Field of Research 2020 | 400504. Construction engineering |
401602. Composite and hybrid materials | |
490109. Theoretical and applied mechanics | |
Public Notes | © 2004 Elsevier Ltd. All rights reserved. Published version deposited in accordance with the copyright policy of the publisher. |
Byline Affiliations | University of Sydney |
Computational Engineering and Science Research Centre |
https://research.usq.edu.au/item/9x74z/experimental-study-on-z-pin-bridging-law-by-pullout-test
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