EXPERIMENTAL　INVESTIGATION　ON　CHANGE　OF　COLDWORKING　RESIDUAL　STRAIN　OF　HOLE　IN　ALUMINIUM　ALLOY　SHEET  

作　　者：Lin Ying(Shenyang Institute of Aeronautical Engineering, Shenyang, China, 11003 1 )Wu Fumin Xing Wenzhen(Northwestern Polytechnical University, Xi’an, China, 710072) 

出　　处：《Chinese Journal of Aeronautics》1994年第3期227-230,共4页中国航空学报（英文版）

摘　　要：An experimental study on degeneration of the coldworking residual strainduring different cyclic loadings is presented. The expenmental results obtained showthat the residual strain of squcezing dislributes under power series law ε= axb overthe horizontal line of the stress on both sides of the cenual hole. and that when the max-imum real stress at the hole is lower than the yield stress of the material. the degeneration of residual strain has a sudden change during cyclic loading, and the closer to thehole side, the more serious the degcneration.An experimental study on degeneration of the coldworking residual strainduring different cyclic loadings is presented. The expenmental results obtained showthat the residual strain of squcezing dislributes under power series law ε= axb overthe horizontal line of the stress on both sides of the cenual hole. and that when the max-imum real stress at the hole is lower than the yield stress of the material. the degeneration of residual strain has a sudden change during cyclic loading, and the closer to thehole side, the more serious the degcneration.

关 键 词：cold working extruding residual stress strain hardening 

分 类 号：V25[一般工业技术—材料科学与工程]