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http://dx.doi.org/10.7234/composres.2019.32.1.006

The Characteristics for Mode I Interlaminar and Intralaminar Fractures of Cross-Ply Carbon/Epoxy Composite Laminates Based on Energy Release Rate  

Kang, Min-Song (Department of Aerospace Engineering, Chungnam National University)
Jeon, Min-Hyeok (Department of Aerospace Engineering, Chungnam National University)
Kim, In-Gul (Department of Aerospace Engineering, Chungnam National University)
Woo, Kyeong-Sik (School of Civil Engineering, Chungbuk National University)
Publication Information
Composites Research / v.32, no.1, 2019 , pp. 6-12 More about this Journal
Abstract
This paper describes the characteristics for mode I interlaminar and intralaminar fractures of cross-ply carbon/epoxy composite laminates. We obtained mode I interlaminar fracture toughness and mode I intralaminar fracture toughness based on energy release rate and Finite Element Analysis (FEA). For this purpose, the Double-Cantilever Beam (DCB) test and FEA were performed for cross-ply DCB specimens. Also, the behavior of load-displacement curve at the interlaminar and intralaminar crack was analyzed. The results show that mode I intralaminar fracture toughness was lower than mode I interlaminar fracture toughness in the cross-ply DCB specimen.
Keywords
Composite Laminates; Mode I Interlaminar Fracture Toughness; Strain Energy Release Rate; Intralaminar Fracture;
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