Experimental and Numerical Investigation of Delamination in Curved-Beam Multidirectional Laminated Composite Specimen

Abstract:

Composite corners are generally tested under four point-bending to identify Inter-Laminar Tensile Strength design values. Hereafter several lay-ups have been defined in order to characterize very different damage evolution processes. Damage monitoring has been performed with the help of Digital Image Correlation, Acoustic Emission and Fast Video Recorder. The different processes leading to final failures have been identified. A deterministic continuous composite material model is used to investigate these phenomena. Initiation and evolution up to saturation and fracture are implemented for various damage mechanisms and for delamination. A first comparison between experiments and numerical simulations is presented.

• Periodical: Key Engineering Materials (Volumes 577-578)
• Pages: 389-392
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.577-578.389
• Online since: September 2013
• Authors: Laurent Michel, Sebastian Garcia, Chen Yao, Christine Espinosa, Frédéric Lachaud
• Keywords: Damage Mechanics, Delamination, Finite Element Numerical Simulations, Inter Laminar Tensile Strength, Laminate Composite

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