摘要
针对复合材料结构混合连接区域内力分布计算问题,提出了基于胶-螺连接典型单元载荷变形曲线内力分布计算方法。首先通过数值仿真方法获得胶-螺连接典型单元载荷变形曲线,然后采用该曲线并借助有限元方法分析了双列五钉单搭接试验件连接区域应变分布,同试验结果进行了比较,结果显示计算结果与试验结果一致性良好,说明了分析方法具有良好的实用性。该方法为工程人员分析类似的复合材料层合板胶-螺连接区域应力和应变提供了参考。
Aiming at bonded-bolted hybrid joints of composite structure, internal force distribution calculation for joints is investigated. A new method is proposed based on loading-deformation curves of a typical hybrid joint. First, the loading-deformation for the typical hybrid joint is obtained by numerical simulation. Then, based on the loading-deformation curve, the strain distributions for the double row and five bolt single-lap composite joints are obtained by FEM. The analysis results are validated by test results. It shows that the strains obtained by FEM are in good agreement with the experimental data, which verifies that the method proposed in this paper is reliable. The method of this paper can be used to analyze the strength for other type of hybrid joints.
作者
吴存利
万春华
郭瑜超
WU Cun-li;WAN Chun-hua;GUO Yu-chao(Aircraft Strength Research Institute of China, Xi′an 710065, China)
出处
《玻璃钢／复合材料》
CAS
北大核心
2019年第9期44-51,共8页
Fiber Reinforced Plastics/Composites
关键词
复合材料
混合连接
载荷变形
有限元建模
composite
hybrid joints
loading-deformation
finite element modeling
