摘要
讨论了紧固件载荷变形曲线数值分析方法,提出了基于紧固件载荷变形曲线有限元建模方法。利用三层搭接板试验结果,验证了基于紧固件载荷变形曲线的有限元建模方法有效性,并同工程中传统紧固件建模方法进行了对比研究。结果表明,采用紧固件载荷变形曲线的模型化方法更能模拟紧固件真实刚度,得的计算结果接近于试验实测结果。提出的模型化方法可为工程结构总体有限元分析或细节有限元分析中紧固件模型化提供参考。
Based on loading- deformation curve of fastener, the new finite element modeling for riveted structure is proposed. First the loading- deformation for fastener is discussed and finite element modeling for riveted structure is investigated. Then the new modeling method is validated by test results and com- pared with traditional method. It reveals that results given by new modeling method agree better with the test results than that obtained by the traditional one, which verifies preliminarily that the modeling method given in the paper is highly efficient and possesses good adaptability.
出处
《航空计算技术》
2013年第4期65-67,71,共4页
Aeronautical Computing Technique
关键词
紧固件
载荷变形
有限元建模
非线性分析
fastener
loading- deformation
finite element modeling
nonlinear analysis
