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
田宇 1常亮 1张国凡1
作者信息
- 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
- 折叠
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.
Abstract
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Key words
wing and fuselage connection joint/lug structure/nonlinear analysis/Johnson-Cook plastic constitutive model引用本文复制引用
出版年
2024
NETL
NSTL
万方数据