High-velocityimpactprocessbetweenparitcleandsubstrate

incoldspraying

YIN Shuo; WANG Xiao-fang; LI Yue

doi:10.11883/1001-1455(2010)05-0546-05

Volume 30 Issue 5

May 2014

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YIN Shuo, WANG Xiao-fang, LI Yue. High-velocityimpactprocessbetweenparitcleandsubstrate incoldspraying[J]. Explosion And Shock Waves, 2010, 30(5): 546-550. doi: 10.11883/1001-1455(2010)05-0546-05

Citation:

YIN Shuo, WANG Xiao-fang, LI Yue. High-velocityimpactprocessbetweenparitcleandsubstrate incoldspraying[J]. Explosion And Shock Waves, 2010, 30(5): 546-550. doi: 10.11883/1001-1455(2010)05-0546-05

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High-velocityimpactprocessbetweenparitcleandsubstrate incoldspraying

doi: 10.11883/1001-1455(2010)05-0546-05

1.
SchoolofEnergyandPowerEngineering,DalianUniversityofTechnology,

Funds:

NationalNaturalScienceFoundationofChina(50476075)

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Corresponding author: YIN Shuo
Publish Date: 2010-09-25

Abstract

Abstract

Copperparticleimpactbehaviorsincoldsprayingwerenumericallysimulatedbyusingthe LS-DYNAprogram.Someimportantaspectsonthe3Dmodelingwereexamined.Effectsofthemeshingsizeonparticlecriticalvelocityandparticledeformationwerealsoinvestigated. Theresultsshow thatthecontoursofthedeformedparticleobtainedbythe3Dmodelaremorecomparabletotheexperimentalobservationthantheprevious2Dsimulate results.Thedistortionofthesolidelementatthe contactzoneinthe3Dmodelismuchweakerthanthesurfaceelementusedinthe2D model.Therefore, nosteepincreaseofeffectiveplasticstrainofelementscanbeobservedduringtheimpact process.Furthermore,themeshingsizealsotakesanimportantroleinthe3Dsimulatedresults.The criticalvelocity,flatteningratioandcompressionratioobtainedbyextrapolationmethodsareingood agreementwiththeexperimentalresults.
- solidmechanics,
- impactbehavior,
- 3Dmodel,
- coldspraying,
- meshingsize

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