飞机典型接头破坏试验与有限元分析  

Failure test and finite element analysis of typical aircraft joints

作　　者：田宇 常亮[1] 张国凡[1] TIAN Yu;CHANG Liang;ZHANG Guofan(National Key Laboratory of Strength and Structural Integrity,Aircraft Strength Research Institute of China,Xi’an 710065,China)

机构地区：[1]中国飞机强度研究所强度与结构完整性全国重点实验室,西安710065

出　　处：《计算机辅助工程》2024年第1期19-22,共4页Computer Aided Engineering

摘　　要：为对某型飞机副翼典型耳片接头进行强度校核,采用Johnson-Cook塑性本构模型开展有限元非线性破坏分析,计算接头破坏载荷及其破坏模式,并与试验结果进行对比验证。分析结果与试验结果相对误差在5%以内,破坏模式与试验完全一致,验证方法的准确性与有效性。To check the strength of the typical lug joints on ailerons of a certain type of aircraft,the finite element nonlinear failure analysis is carried out using Johnson-Cook plastic constitutive model.The failure load and failure mode of the joint are computed,and compared and verified with the test results.The relative error between the analysis results and the experimental results is within 5%,the failure mode is completely consistent with the test.The accuracy and effectiveness of the method is verified.

关 键 词：翼-身接头 耳片结构 非线性分析 Johnson-Cook塑性本构模型 

分 类 号：V215.52[航空宇航科学与技术—航空宇航推进理论与工程] TB115.1[理学—数学]