ISSN 2288-2103 (Print)
ISSN 2288-2111 (Online)
 
 
 
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Abstract

Composites Research. 2019 32(1): 6-12
ⓒ The Journal of the Korean Society for Composite Materials
      
 
The Characteristics for Mode I Interlaminar and Intralaminar Fractures of Cross-Ply Carbon/Epoxy Composite Laminates Based on Energy Release Rate
Min-Song Kang, Min-Hyeok Jeon, In-Gul Kim, Kyeong-Sik Woo
Department of Aerospace Engineering, Chungnam National University
 
 
변형률 에너지 해방률에 기반한 Carbon/Epoxy 직교적층판의 모드 I 층간 및 층내 파괴 특성 분석
강민송, 전민혁, 김인걸, 우경식
Department of Aerospace Engineering, Chungnam National University
 

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 loaddisplacement 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.
 
Key words : Composite Laminates, Mode I Interlaminar Fracture Toughness, Strain Energy Release Rate, Intralaminar Fracture
중심단어 : 복합재 적층판, 모드 I 층간 파괴인성, 변형률 에너지 해방률, 층내 파괴
 
 
    
 
 
 

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