ZHANG Fan, CAO ZengQiang, YANG XiaoNa, et al. PROCESS RESEARCH OF EDGE DISTANCE ON AN INTERFERENCE-FIT STRENGTHENING TECHNIQUE OF TITANIUM ALLOY SHEET[J]. 2017,39(6):1432-1437.
ZHANG Fan, CAO ZengQiang, YANG XiaoNa, et al. PROCESS RESEARCH OF EDGE DISTANCE ON AN INTERFERENCE-FIT STRENGTHENING TECHNIQUE OF TITANIUM ALLOY SHEET[J]. 2017,39(6):1432-1437. DOI: 10.16579/j.issn.1001.9669.2017.06.029.
To solve the optimization problem of edge distance in titanium alloy sheet during a new aircraft development stage,a three dimensional FE model was built on ABAQUS platfom. The effect of edge distance on residual stress distribution was analysised with TC4 titanium alloy by interference-fit strengthening technique under cylic loading. The study indicates that a considerble reduction of fatigue life is found with a lower egde distance ratio( L/D),also,the location of fatigue damage is moving against the hole. Fatigue damage happens in the margin part with edge distance ratio( L/D) less than 2.
关键词
钛合金干涉强化孔边距有限元法疲劳寿命
Keywords
TitaniumInterference-fit strengtheningEdge distanceFinite element methodFatigue life