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Proceedings 2018, 2(8), 408; https://doi.org/10.3390/ICEM18-05283

Novel Experimental Design for Two-Dimensional Delamination in Fiber-Reinforced Polymer Laminates

Composite Construction Laboratory (CCLab), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
Presented at the 18th International Conference on Experimental Mechanics. Brussels, Belgium, 1–5 July 2018.
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Published: 30 May 2018
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Abstract

The two-dimensional (2D) delamination behavior of composite laminates under quasi-static out-of-plane opening loads has been experimentally investigated. A novel design and experimental set-up for fiber-reinforced polymer (FRP) laminated plates with a circular embedded pre-crack was developed. Increasing load-displacement curves were obtained due to the increasing crack front length during propagation. Throughout the loading process, stiffening and softening mechanisms were activated. The stretching of delaminated part of the laminates constituted the main stiffening mechanism. Once the crack started growing, a corresponding softening due to crack propagation occurred together with a secondary stiffening mechanism, fiber-bridging. These stiffness-related mechanisms were reflected in the compliance.
Keywords: two-dimensional delamination; laminates; embedded pre-crack two-dimensional delamination; laminates; embedded pre-crack
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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MDPI and ACS Style

Cameselle-Molares, A.; P. Vassilopoulos, A.; Keller, T. Novel Experimental Design for Two-Dimensional Delamination in Fiber-Reinforced Polymer Laminates. Proceedings 2018, 2, 408.

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