玻璃钢/复合材料Issue(7)：40-44,5.
复合材料螺栓连接渐近失效分析
PROGRESSIVE DAMAGE ANALYSIS OF COMPOSITE BOLTED JOINTS
梅俊杰 1倪爱清 1王继辉1
作者信息
- 1. 武汉理工大学材料复合新技术国家重点实验室,武汉 430070
- 折叠
摘要
Abstract
In order to investigate the combined influence of friction coefficient and bolt-torque on the strength of single-bolted composite joints and their mechanism,a three-dimensional finite element model of laminate in singlebolted joints has been built in ANSYS software.The bolted-torque is applied by using penetrative contact method.The influence of friction in components and secondary bending of the plates has been considered.The progressive damage analysis of composite bolted joints is implemented by using improved Hashin failure criterion and Camanho degradation model.The model is validated through comparison with experimental data in literature.It is shown that the joint strength can be enhanced by increasing the friction coefficient and applying appropriate bolt-torque.Increment in the bolt-torque cannot improve the joint strength obviously and higher bolt-torque can make the matrix crushing when the friction coefficient is small.Thus friction coefficient should be considered when applying bolttorque.The results are instructive for engineering application.关键词
复合材料/螺栓连接/渐进失效/摩擦系数/预紧力Key words
composites/bolt joint/progressive damage/friction coefficient/torque分类
通用工业技术引用本文复制引用
梅俊杰,倪爱清,王继辉..复合材料螺栓连接渐近失效分析[J].玻璃钢/复合材料,2017,(7):40-44,5.
