대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)
- 제20권8호
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- Pages.2431-2435
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- 1996
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
고압하에서의 적층복합재의 기계적 거동에 대한 실험적 고찰
Experimental Investigation on the Mechanial Behavior of Graphite/Epoxy Composites Under Hydrostatic Pressure
- Rhee, K.Y. (Wonkwang University) ;
- Pae, K.D.
- 발행 : 1996.08.01
초록
In order to determine the effects of hydrostatic pressure on the mechanical behavior of graphite fiber reinforced composites, the modulus, fracture stress(maximum stress), and fracture strain of graphite/epoxy composites have been determined as a function of pressure. Composite specimens used in this study were 90-deg unidirectional and had a 60% fiber volume fraction. Compressive tests under five different pressure levels were conducted. The result showed the modulus measured from as initial slope of stress-strain curve increased bilinearly with pressure with a break at 200 MPa. It was also found that fracture stress and fracture strain increased in a linear fashion with pressure.
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