摘要
对玻璃钢复合材料疲劳性能试验夹具以及试样尺寸进行了改进设计,提出了开孔拉伸式哑铃形玻璃钢疲劳性能试验方法。采用有限元分析方法分析了试样应力分布,并对试样结构进行了优化设计。采用这一新的试验方法对玻璃钢复合材料在两种不同应力水平下的疲劳性能进行了试验。试验结果显示,所有被检测试样都在试样试验区破坏,验证了改进后的试验方法的可靠性。
The improvement on the testing clamp and the size of the specimen was conducted for fatigue of glass fiber reinforced plastic. A new fatigue testing and appraising method on glass fiber reinforced plastics was introduced by using the dumbbell-shaped specimens with tensile testing holes. The distribution of stress in specimen was analyzed by FEA,proper specimen structures were obtained. The fatigue tests were carried out for GFRP under two different stress levels. The results show that all the specimens are failure in the test area, the method put forward is verified.
出处
《玻璃钢／复合材料》
CAS
CSCD
2009年第5期46-48,52,共4页
Fiber Reinforced Plastics/Composites
基金
国家863项目(2007AA03Z563)
湖南省重大科技专项(No.2006GK1002)
关键词
玻璃钢复合材料
疲劳寿命
疲劳试验方法
有限元分析
glass fiber reinforced plastics
fatigue life
fatigue method
finite element analysis
