Studyonaradial-directiondynamictensiletestmethod

forathin-walledtubestructurewithspecialringsection

YANG Jian-bo; LI Yu-long; SUO Tao; SONG Bao-yong

doi:10.11883/1001-1455(2011)01-0095-06

Volume 31 Issue 1

May 2014

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YANG Jian-bo, LI Yu-long, SUO Tao, SONG Bao-yong. Studyonaradial-directiondynamictensiletestmethodforathin-walledtubestructurewithspecialringsection[J]. Explosion And Shock Waves, 2011, 31(1): 95-100. doi: 10.11883/1001-1455(2011)01-0095-06

Citation:

YANG Jian-bo, LI Yu-long, SUO Tao, SONG Bao-yong. Studyonaradial-directiondynamictensiletestmethod forathin-walledtubestructurewithspecialringsection[J]. Explosion And Shock Waves, 2011, 31(1): 95-100. doi: 10.11883/1001-1455(2011)01-0095-06

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Studyonaradial-directiondynamictensiletestmethod forathin-walledtubestructurewithspecialringsection

doi: 10.11883/1001-1455(2011)01-0095-06

1.
SchoolofAeronautics,NorthwesternPolytechnicalUniversity,
2.
Xi’an710072,Shaanxi,China;

Funds:

NationalNaturalScienceFoundationofChina(10932008)

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Corresponding author: LI Yu-long
Publish Date: 2011-01-25

Abstract

Abstract

Aimedatathin-walledtubestructurewithspecialringsection,combinedwithfiniteelementanalysis, aradial-directionaldynamictensileexperimentalmethodwasproposedbasedonconventionalsplitHopkinsontensilebar( SHTB).Aspecialclampwasdesigned,andahollowsteeltransimissionbarwasusedto magnifythetransmittedsignals.Forthe1Cr18Ni9Tithin-walledtube structure,somedynamictensiletestswereimplementedunderdifferentstrainrates.Theresulsts showthattheexperimentalmethodisapplicabletothethin-walledtubestructurewithspecialring section.Inaddition,thespecialringhasalongplasticstageandthefracturestrainisreducedwith strainrateincressing.Moreover,thetensilestrengthisobviouslyenhancedwithstrainrateincreasing.

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