[논문자료]정수압 조건에서 변형률 변화가 섬유강화 복합재의 층간분리인성에 미치는 영향에 대한 연구

출처: 픽사베이

정수압 조건에서 변형률 변화가 섬유강화 복합재의 층간분리인성에 미치는 영향에 대한 연구

It is generally accepted that fracture toughness of fiber-reinforced polymer composites is affected by strain rate in an atmospheric pressure condition. For a present study, the strain rate effect on the fracture toughness of fiber-reinforced laminated composites in the hydrostatic pressure condition was investigated. For this purpose, fracture tests have been conducted using graphite/epoxy laminated composites applying three steps of the strain rate at 270 MPa hydrostatic pressure condition. The strain rates applied were 0.05%/sec,0.25%/sec0.05%/sec,0.25%/sec, and 0.55%/sec0.55%/sec. Fracture toughness was determined from the work factor approach as a function of applied strain rate. The result showed that fracture toughness decreased as the strain rate increased. Specifically, the fracture toughness decreased 12%12% as the strain rate increased from 0.05%/sec0.05%/sec to 0.55%/sec0.55%/sec.

 

출처: https://scienceon.kisti.re.kr/srch/selectPORSrchArticle.do?cn=JAKO200507521929811&SITE=CLICK

 

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정수압 조건에서 변형률 변화가 섬유강화 복합재의 층간분리인성에 미치는 영향에 대한 연구