Transientfailureprocessofexplosioncontainmentvessels

subjectedtoadiabaticshear

MA Li; HU Yang; XIN Jian; ZHENG Jin-yang; DENG Gui-de; CHEN Yong-jun

doi:10.11883/1001-1455(2012)02-0136-07

Volume 32 Issue 2

May 2014

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Article Navigation > Explosion And Shock Waves > 2012 > 32(2): 136-142

MA Li, HU Yang, XIN Jian, ZHENG Jin-yang, DENG Gui-de, CHEN Yong-jun. Transientfailureprocessofexplosioncontainmentvesselssubjectedtoadiabaticshear[J]. Explosion And Shock Waves, 2012, 32(2): 136-142. doi: 10.11883/1001-1455(2012)02-0136-07

Citation:

MA Li, HU Yang, XIN Jian, ZHENG Jin-yang, DENG Gui-de, CHEN Yong-jun. Transientfailureprocessofexplosioncontainmentvessels subjectedtoadiabaticshear[J]. Explosion And Shock Waves, 2012, 32(2): 136-142. doi: 10.11883/1001-1455(2012)02-0136-07

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Transientfailureprocessofexplosioncontainmentvessels subjectedtoadiabaticshear

doi: 10.11883/1001-1455(2012)02-0136-07

1.
InstituteofProcessEquipment,ZhejiangUniversity,
2.
Hangzhou 310027,Zhejiang,China;
3.
ChinaSpecialEquipmentInspectionandResearchInstitute,Beijing 100013,China;
4.
InstituteofReliableLegalityofComponentsandSystems,UniversityKarlsruhe (TH ),

Funds:

NationalNaturalScienceFoundationofChina(51005201,50875236)

More Information

Corresponding author: ZHENG Jin-yang
Publish Date: 2012-03-25

Abstract

Abstract

Destructiontestswereperformedonacylindricalexplosioncontainmentvessel(ECV)by applyingtheexplosiveloadswiththeincreasingchargemassesofTNT.Anadiabaticshearfailure modeforECVswaspresentedbasedonthefractureandthemicro-opticalobservationofthedestructedvessel. AdamageevolutionmodelforECVssubjectedtoadiabaticshearwasconstructed,where themechanicalconditionsincludingstrainrateandstrain werelinked withthedifferentevolution statesoftheadiabaticshearbands(ASBs).AndthesemechanicalconditionswereemployedinthenumericalcodeasthefailurecriteriatosimulatethetransientprocessoftheASBevolution. Thesimulatedfractureprofileshowsagoodagreementwiththeexperimentalresult. Thesimulatedresultindicatesthattherate- dependentcriticalstrain,aswellasexplosiveload,governstheadiabaticshearfailuremode. ThoughtheinitialmaterialimperfectionignitestheASBs,ithasaminorinfluenceonthe finalfractureprofile.FortheECVswiththeadiabaticshearfailuremode,thecrack (orASB)expandsfasterthanforthosewiththeplasticinstabilityfailuremode.
- mechanicsofexplosion,
- failuremode,
- adiabaticshear,
- explosioncontainmentvessel