Delamination growth mechanisms in woven glass fiber reinforced polymer composites under Mode II fatigue loading at cryogenic temperatures
Delamination growth mechanisms in woven glass fiber reinforced polymer composites under Mode II fatigue loading at cryogenic temperatures
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DOI：
10.1016/j.compscitech.2009.04.010
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发表时间：
2009-09
影响因子：
9.1
通讯作者：
Y. Shindo;T. Takeda;F. Narita;N. Saito;S. Watanabe;K. Sanada
中科院分区：
文献类型：
--
作者：
Y. Shindo;T. Takeda;F. Narita;N. Saito;S. Watanabe;K. Sanada
摘要本研究旨在探讨编织玻璃纤维强化聚合物复合材料层板在低温下受第二模式疲劳载荷时之脱层成长行为。采用四点弯曲端部切口弯曲（4ENF）试验方法，在室温、液氮温度（77 K）和液氦温度（4 K）下对编织GFRP层合板进行了Ⅱ型疲劳分层试验，获得了层合板的分层扩展速率数据。用有限元法确定了能量释放率的范围。还对试样切片和断裂面进行了显微镜检查。讨论了目前的结果，以了解在编织GFRP层合板在低温下的模式II加载下的疲劳脱层扩展机制。
The purpose of this research is to characterize the cryogenic delamination growth behavior in woven glass fiber reinforced polymer (GFRP) composite laminates subjected to Mode II fatigue loading. Mode II fatigue delamination tests were performed at room temperature, liquid nitrogen temperature (77K) and liquid helium temperature (4K) using the four-point bend end-notched flexure (4ENF) test method, and the delamination growth rate data for the woven GFRP laminates were obtained. The energy release rate range was determined by the finite element method. Microscopic examinations of the specimen sections and fracture surfaces were also carried out. The present results are discussed to obtain an understanding of the fatigue delamination growth mechanisms in the woven GFRP laminates under Mode II loading at cryogenic temperatures.