双剪切连接件钉传载荷分析及其均化处理  

Pin Load Distribution of Double Shear Joint Research and Load Distribution Uniform Treatment

作　　者：袁喆[1] 刘军[1] 闫五柱[1] 杨仕超[1] 王富生[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,先进材料测试中心,陕西西安710129

出　　处：《材料科学与工程学报》2013年第1期88-91,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51175424);高等学校学科创新引智计划资助项目(B07050);西北工业大学基础研究基金资助项目(JC2011025)

摘　　要：采用试验和有限元分析相结合的方法开展双剪切连接件钉传载荷研究。通过有限元软件ABAQUS开展双剪切连接件数值模拟研究,数值模拟中综合考虑连接件的摩擦、接触和预紧力。数值模拟得到的钉传载荷分配比率与动态应变采集仪测得的试验结果相吻合,验证了有限元模型的正确性。在此模型基础上分析了过盈和间隙配合对钉传载荷分配比率均化效果的影响。分析结果表明:双剪切连接件搭接板最大应力发生在中板的靠近单板钉孔处,合理安排各孔的过盈及间隙配合能够均化各钉传载荷比率,提高孔的承载能力。Experiment research and finite element simulation of pin load distribution of double shear joint were carried out in the present study. Contact, friction between jointed sheets and pretightening force were considered in the finite element simulation through the software of ABAQUS. The finite element simulation results exhibit a good agreement with experiment results, which indicates that the pin load distribution can be well analyzed by finite element simulation. The results show that the pin load distribution of the first column is the largest, which needs to be particularly considered in joint design. The middle plate of the joint which has the largest stress is the dangerous position. It is easy to be damaged and need to be strengthened. The influences of interference and clearance on the pin load distribution were analyzed. An appropriate adoption of interference and clearance can average the pin load distribution effectively, which enhances load- bearing capability of the joint.

关 键 词：连接件 钉传载荷 试验研究 有限元模拟 均化处理 

分 类 号：TB33[一般工业技术—材料科学与工程]