STUDY ON THE STRENGTH OF ALUMINUM ALLOY RIVETED STRUCTURE AFTER HIGH TEMPERATURE THERMAL EXPOSURE
HE ZhiQuan
NIE Hong
WEI XiaoHui
CHEN TianLang
WEN LiXin
Abstract：Focus on the influence of high-temperature and thermal exposure on the strength of the aluminum alloy riveted structure commonly used in aircraft,finite element analysis(FEA)and test research are carried out with joints composed of 2024-T3 sheets and NAS1097KE5 rivets in room temperature,high temperature and thermal exposure.The detail FEA which consider of material nonlinearity and properties attention after high temperature and thermal exposure,results in a good agreement with tests,which the differences are less than 5％.The formed finite element method(FEM)can accurately simulate the strength performance of this type of aluminum alloy riveted structure in the environments of room temperature,high-temperature and thermal exposure.The differences of joint strength after thermal exposure between test results and formulas prediction fitting from FEA analysis are less than 4％.After conservative revision,the formulas can be applied to engineering practice.The established joint strength calculation method of aluminum alloy riveted structure under high-temperature and thermal exposure can be extended to other similar structures.
Keywords：Aluminum alloyRivetHigh temperatureThermal exposureStrengthTestFinite element analysis
Publication Date：2024-12-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：8( 1325-1332 )