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Volume 32 Issue 4
Apr.  2014
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Article Navigation >  Explosion And Shock Waves  > 2012  >  32(4): 368-373
CHEN Chang-hai, ZHU Xi, HOU Hai-liang, SHEN Xiao-le, TANG Ting. Deformationandfailuremodesofclampedsquareplatesunderclose-rangeairblastloads[J]. Explosion And Shock Waves, 2012, 32(4): 368-373. doi: 10.11883/1001-1455(2012)04-0368-08
Citation: CHEN Chang-hai, ZHU Xi, HOU Hai-liang, SHEN Xiao-le, TANG Ting. Deformationandfailuremodesofclampedsquareplatesunderclose-rangeairblastloads[J]. Explosion And Shock Waves, 2012, 32(4): 368-373. doi: 10.11883/1001-1455(2012)04-0368-08
shu

Deformationandfailuremodesofclampedsquareplatesunderclose-rangeairblastloads

doi: 10.11883/1001-1455(2012)04-0368-08
  • 1.

    Departmentof NavalArchitectureandOceanEngineering,NavalUniversityof

  • 2.

    No. 91439 Unit of PLA, Wuhan430033,Hubei,China;

Funds:

NationalNaturalScienceFoundationofChina(51179200)

  • Publish Date: 2012-07-25
    Abstract
  • Toexplorethedeformationmodesofwarshipstructuressubjectedtoclose-rangeexplosionofwarheadandfurnishexperimentaldata,thedeformationanddamagemodesofclampedlargescalesquareplatesunderclose-rangeblastloadingwereanalyzedthroughmodelexperiments.Onthebasisoftheanalysis,thefailurestrainofQ235steelwasobtainedutilizingbiaxialstrainhypothesisandbulkequivalenttheoryviameasuringthethinningrateofcrackedpetals.Basedontheexperimentalresults,arupturecriterionofstructuressubjectedtolocalisedblastloadingwaspresentedafteremployingrigid-plasticassumptionandenergydensityrule.Moreover,predictionsforexperimentsweremade.Theresultsshowthattheclampedplatesexhibitthreedifferentdeformationanddamagemodeswiththeincreasingoftheloadintensity.Thepredictionsbymakinguseoftherupturecriterionfortestconditionscorrelatewellwiththeexperimentalresults.
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