Failure behavior of sandwich honeycomb composite beam containing crack at the skin

Al-Fasih, M. Y. and Kueh, A. B. H. and W.Ibrahim, M. H. (2020) Failure behavior of sandwich honeycomb composite beam containing crack at the skin. PLoS ONE, 15 (2). pp. 1-19. ISSN 19326203

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Skin crack defects can develop in sandwich honeycomb composite structures during service life due to static and impact loads. In this study, the fracture behavior of sandwich honeycomb composite (SHC) beams containing crack at the skin was investigated experimentally and numerically under four-point loading. Three different arrangements of unidirectional (UD) carbon fiber composite and the triaxially woven (TW) fabric were considered for the skins. The presence of a 10 mm crack at mid-span of the top skin, mid-span of the bottom skin, and mid-way between load and support of the top skin, respectively, were considered. Failure load equations of the load initiating the skin crack extension were analytically derived and then numerically developed using the J-integral approach. The crack extension failure mode dominated all cracked specimens except those with low-stiffness skin which were controlled by the compressive skin debonding and core shear failures.

Item Type: Article
Uncontrolled Keywords: NIL
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Structural and Materials Engineering
Depositing User: Miss Afiqah Faiqah Mohd Hafiz
Date Deposited: 03 Jan 2022 02:58
Last Modified: 03 Jan 2022 02:58

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