Dynamicstressmeasurementofalargeexplosion-containmentvessel

ZHANG Xiao-peng; GE Fei; XING Huai-nian; JIN Li-qiang

doi:10.11883/1001-1455(2010)01-0101-04

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ZHANG Xiao-peng, GE Fei, XING Huai-nian, JIN Li-qiang. Dynamicstressmeasurementofalargeexplosion-containmentvessel[J]. Explosion And Shock Waves, 2010, 30(1): 101-104. doi: 10.11883/1001-1455(2010)01-0101-04

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ZHANG Xiao-peng, GE Fei, XING Huai-nian, JIN Li-qiang. Dynamicstressmeasurementofalargeexplosion-containmentvessel[J]. Explosion And Shock Waves, 2010, 30(1): 101-104. doi: 10.11883/1001-1455(2010)01-0101-04

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Dynamicstressmeasurementofalargeexplosion-containmentvessel

doi: 10.11883/1001-1455(2010)01-0101-04

1.
DepartmentofEngineering Mechanics,DalianUniversityofTechnology,

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Corresponding author: GE Fei
Publish Date: 2010-01-25

Abstract

Abstract

Loadingexperimentswerecarriedoutinalargeexplosionchamberunderdifferentconditions, andthestrainsandstressesatseveraltypicalpositionsweremeasuredbyanelectrictestmethod. Theexperimentalresultsshowthat:(1)Thestresspeakforthefirsttimeisthehighestatthe outersurfaceofthesphericalshellunderexplosionimpact,andthenthevibrationisbasicallydominatedinthestatesofalternatetensileandcompressivestresses, whichfallbelow100MPaimmediately justafter1~2cycles,sothevibrationfatigueofthesphericalshellcanbemarkedlyweakenedbythe soilaccumulation;(2)Thestrengthofthemodelmeetsthedesignrequirements;(4)Theareashowingthemaximumstressconcentrationisnearbythedischargeport;( 4)Theshapefactoroftheexplosivechargehasagreatinfluencetothestructuresafety.
- mechanicsofexplosion,
- largeexplosion-containmentvessel,
- stressandstrain,
- measuring