Analysis of spherical stress wave propagating in PMMA

Lu Qiang; Wang Zhan-jiang; Men Chao-ju; Guo Zhi-yun; Li Jin

doi:10.11883/1001-1455(2013)06-0561-06

Volume 33 Issue 6

Apr. 2014

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2013 > 33(6): 561-566

Lu Qiang, Wang Zhan-jiang, Men Chao-ju, Guo Zhi-yun, Li Jin. Analysis of spherical stress wave propagating in PMMA[J]. Explosion And Shock Waves, 2013, 33(6): 561-566. doi: 10.11883/1001-1455(2013)06-0561-06

Citation:

Lu Qiang, Wang Zhan-jiang, Men Chao-ju, Guo Zhi-yun, Li Jin. Analysis of spherical stress wave propagating in PMMA[J]. Explosion And Shock Waves, 2013, 33(6): 561-566. doi: 10.11883/1001-1455(2013)06-0561-06

Citation:

PDF( 1417 KB)

Analysis of spherical stress wave propagating in PMMA

doi: 10.11883/1001-1455(2013)06-0561-06

1.
Northwest Institute of Nuclear Technology,Xi'an7 10024,Shaanxi,China

Funds:

NationalNaturalScienceFoundationofChina(11172244)

Publish Date: 2013-11-25

Abstract

Abstract

Basedonthetechniqueofthesphericaldivergentstresswaveexperimentsandthecirque electromagnetictestingmethodoftheparticlevelocity,thepropagationofsphericalstresswaveand theparticlevelocitiesinPMMAundertampedexplosionwereexperimentallyinvestigatedbychoosing aminiaturesphericalexplosiveof0.125gTNTequivalentasthesphericalexplosionsource.The resultsrevealthatthepeakvaluesoftheparticlevelocitiesanddisplacementsfollowexponentialattenuationlawsandthecorrespondingattenu tionindexesare1.34and1.28,respectively.Asthescaled distanceincreases,thenegativepeakvaluesoftheparticlevelocitiestrendtofirstincreaseandthen decrease.Astheradialstressislowerthan1GPa,therelationsoftheradialstresspeakwiththeparticlevelocitypeakunderthestrongdiscontinuityassumptionareconsistentwiththe- v Hugoniot curvesfromone-dimensionalstrainexperiments.Andinvertedfromthevariablemodulusmodelassumptionandtheparticlevelocitycurves, theelastic,bulkandshearmoduliofPMMAare(6.40 0.64),(7.120.71)and(2.370.24)GPa,respectively.
- solidmechanics,
- sphericalstresswave,
- velocitygauge,
- PMMA,
- mini-chemicalexplosion