Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)
- Volume 20 Issue 12
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- Pages.3748-3758
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- 1996
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
Impact Damages and Residual Strength of CFRP Laminates under the Hygrothermal Environment
고온.고습 환경에서 CFRP 적층재의 충격손상와 잔류강도
- Published : 1996.12.01
Abstract
This study is to investigate experimentally relationships between the impact energy and moisture absorption characteristies vs.the residual bending strength with the variation of stacking seqences. When Carbon-fiber reinforced plastics(CFRP) impact-induced laminates are subjected to the high temperatures and hygrothermal effects, it is found that what CFRP laminates are impacted by a steel ball (5 mm in diametar) ; thus, the generated delamination is observed by the ultrasonic microscope. And the residual bending strength is evaluated by a three-point bending test. Also, a thermostat is used in test with the unimpacted and impacted specimens for the moisture experimentaiton. The percision electro lever scles is used to measure the moisture content(1/10, 000g).
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