T800碳纤维复合材料多钉连接层压板钉载分布及有限元计算  

LOAD DISTRIBUTION AND FINITE ELEMENT ANALYSIS OF MULTI-FASTENER JOINTS T800 COMPOSITE LAMINATES

作　　者：张明星[1] 

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《玻璃钢／复合材料》2015年第1期28-32,共5页Fiber Reinforced Plastics/Composites

摘　　要：通过对T800碳纤维预浸料复合材料层压板多钉连接试验件进行轴向拉伸测试,测得了整个试验件的载荷-位移曲线和每一个钉孔附近的应变-载荷曲线。试验结果表明,首末两排钉承担载荷最大,中间排钉载荷最小;试件的破坏都是发生在第一排钉附近;破坏模式主要为钉孔挤压和层压板拉伸破坏;建立了相应的有限元模型,模拟结果和试验结果的一致说明了有限元模型的合理性。Tension test were performed on multi-fastener joints composite laminates samples produced with TS00 carbon fiber prepreg. Load-displacement curves of whole composite samples under axial tensile load were obtained, and strain-load curves were available through the strain flowers around the holes. The results show that the first and last rows fasteners carry the most load and the middle ones take the least load. The samples break on the area near the first row fasteners. The failure modes mainly are squeezed fastener hole and tensile failure. One finite element analysis model is established and verified with the high agreement between simulated and experimental results.

关 键 词：多钉连接 钉载分布 应变 破坏模式 有限元分析 

分 类 号：TB332[一般工业技术—材料科学与工程]