Residualstressvariationinanautofrettagedbarrelunderimpactload

LI Qiang; LI Peng-hui; ZHAO Jun-guan; RU Zhan-yong

doi:10.11883/1001-1455(2011)06-0635-06

Volume 31 Issue 6

May 2014

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Article Navigation > Explosion And Shock Waves > 2011 > 31(6): 635-640

LI Qiang, LI Peng-hui, ZHAO Jun-guan, RU Zhan-yong. Residualstressvariationinanautofrettagedbarrelunderimpactload[J]. Explosion And Shock Waves, 2011, 31(6): 635-640. doi: 10.11883/1001-1455(2011)06-0635-06

Citation:

LI Qiang, LI Peng-hui, ZHAO Jun-guan, RU Zhan-yong. Residualstressvariationinanautofrettagedbarrelunderimpactload[J]. Explosion And Shock Waves, 2011, 31(6): 635-640. doi: 10.11883/1001-1455(2011)06-0635-06

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Residualstressvariationinanautofrettagedbarrelunderimpactload

doi: 10.11883/1001-1455(2011)06-0635-06

1.
DepartmentofPowerMechanicalEngineering,NorthUniversityofChina,
2.
Taiyuan030051,Shanxi,China;

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NationalNaturalScienceFoundationofChina(51175481)

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Corresponding author: LI Qiang
Publish Date: 2011-11-25

Abstract

Abstract

Basedonthefiniteelementanalysissoftware,afiniteelementmodelwasestablishedforthe rapid-firingguncross-sectiontoexploretheresidualstressintheautofrettagedbarrel,whichwasinfluencedbythehigh- temperature,high-pressureandhigh-speedexplosivegaswhenshooting.And thedirectcouplingmethodwasemployedasasolvingstrategytoanalyzetheresidualstressintheautofrettagedbarrelintheprocessof50continuo sshotsfirstand10shotsaftercooling.Investigated resultdisplaysthattherepeatedchangingoftheplasticstrainandresidualstressintheinnerwallis harmfultothestabilizationoftheinnerwall.Andthe measureswereputforwardtoreducethe changeoftheresidualstress.
- solidmechanics,
- residualstress,
- finiteelementmethod,
- barrel,
- autofrettage,
- rapid-firing gun

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