층간 파괴인성을 고려한 유리섬유강화 열가소성 복합재료의 저속충돌 유한요소 해석Finite Element Analysis of Low Velocity Impact for Glass Fiber Reinforced Thermoplastic Composites Considering Interlaminar Fracture Toughness
- Other Titles
- Finite Element Analysis of Low Velocity Impact for Glass Fiber Reinforced Thermoplastic Composites Considering Interlaminar Fracture Toughness
- Authors
- 정규현; 김도형; 김학성
- Issue Date
- Nov-2015
- Publisher
- 대한기계학회
- Keywords
- Low velocity impact test(저속충격시험); Fracture toughness(파괴인성); GFRP(유리섬유강화플라스틱); FEA(유한요소해석); Delamination(박리)
- Citation
- 대한기계학회 창립 70주년 기념 학술대회, pp.2365 - 2368
- Indexed
- OTHER
- Journal Title
- 대한기계학회 창립 70주년 기념 학술대회
- Start Page
- 2365
- End Page
- 2368
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/24800
- Abstract
- In this study, the low velocity impact test of glass fiber reinforced thermoplastic (GFRP) composites was simulated and compared with the experimental result by using commercial finite element analysis (FEA) software LS-DYNA. The mechanical properties of GFRP were obtained experimentally based on ASTM standard including the double cantilever beam (DCB) test for modeling of delamination between composite layers using cohesive zone model (CZM). The all of tests were simulated and analyzed using FEA and their results were compared experimental results. Based on these results, the low velocity impact simulation of GFRP was performed using 2D shell element and CZM. Finally, it was found that the impact behavior, failure load and also the delamination between each layers of GFRP could be predict-ed accurately by using the simulation technique devised in this study. It is expected that the simulation technique ap-plied in this work can be widely used for design of various GFRP structures.
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