ISSN 2288-2103 (Print)
ISSN 2288-2111 (Online)
 
 
 
Journal Information
View Full Text
 
 
 
 
Abstract

Composites Research. 2018 31(6): 332-339
ⓒ The Journal of the Korean Society for Composite Materials
    
 
Low Cycle Fatigue Life Behavior of GFRP Coated Aluminum Plates According to Layup Number
Nohjun Myung, Jihye Seo, Eunkyun Lee, Nak-Sam Choi
Department of Mechanical Engineering, Graduate School, Hanyang Univ., Department of Mechanical Design Engineering, Graduate School, Hanyang Univ., Department of Mechanical Engineering, Hanyang Univ., Corresponding author
 
 
적층수에 따른 GFRP 피막 Al 평활재의 저주기 피로수명 평가
명노준, 서지혜, 이은균, 최낙삼
Department of Mechanical Engineering, Graduate School, Hanyang Univ., Department of Mechanical Design Engineering, Graduate School, Hanyang Univ., Department of Mechanical Engineering, Hanyang Univ., Corresponding author
 

Fiber metal hybrid laminate (FML) can be used as an economic material with superior mechanical properties and light weight than conventional metal by bonding of metal and FRP. However, there are disadvantages that it is difficult to predict fracture behavior because of the large difference in properties depending on the type of fiber and lamination conditions. In this paper, we study the failure behavior of hybrid materials with laminated glass fiber reinforced plastics (GFRP, GEP118, woven type) in Al6061-T6 alloy. The Al alloys were coated with GFRP 1, 3, and 5 layers, and fracture behavior was analyzed by using a static test and a low cycle fatigue test. In the low cycle fatigue test, strain - life analysis and the total strain energy density method were used to analyze and predict the fatigue life. The Al alloy did not have tensile properties strengthening effect due to the GFRP coating. The fatigue hysteresis geometry followed the behavior of the Al alloy, the base material, regardless of the GFRP coating and number of coatings. As a result of the low cycle fatigue test, the fatigue strength was increased by the coating of GFRP, but it did not increase proportionally with the number of GFRP layers.
 
Key words : Low cycle fatigue, Composite materials, Glass fiber reinforced plastic, Total strain energy density method
중심단어 : 저주기 피로시험, 복합재료, 유리섬유강화플라스틱, 전변형률 에너지 밀도법
 
 
  
 
 
 

The Korean Society for Composite Materials / 137-070) 1337, Seocho 2-dong, Seocho-gu, Seoul, Korea
Tel: +82-2-598-1550/Fax: +82-2-598-1557, +82-55-752-6391 / Email: composites@kscm.re.kr Copyright 2008 by the Korean Society for Composite Materials