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Volume 31 Issue 5
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Article Navigation >  Explosion And Shock Waves  > 2011  >  31(5): 455-462
WEI Yan-peng, WU Xian-qian, YU Gang, DUAN Zhu-ping. Constitutiveequationsfordissimilarstainlesssteelslaser-weldedmaterials[J]. Explosion And Shock Waves, 2011, 31(5): 455-462. doi: 10.11883/1001-1455(2011)05-0455-08
Citation: WEI Yan-peng, WU Xian-qian, YU Gang, DUAN Zhu-ping. Constitutiveequationsfordissimilarstainlesssteelslaser-weldedmaterials[J]. Explosion And Shock Waves, 2011, 31(5): 455-462. doi: 10.11883/1001-1455(2011)05-0455-08
shu

Constitutiveequationsfordissimilarstainlesssteelslaser-weldedmaterials

doi: 10.11883/1001-1455(2011)05-0455-08
  • 1.

    TheStateKeyLaboratoryof NonlinearMechanics,Instituteof Mechanics,

  • 2.

    ChineseAcademyofSciences,Beijing 100080,China;

  • 3.

    KeyLaboratoryforHydrodynamicsandOceanEngineering,Instituteof Mechanics,

Funds:

NationalNaturalScienceFoundationofChina(10832011)

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  • Corresponding author: WEI Yan-peng
  • Publish Date: 2011-09-25
    Abstract
  • Thestress-straincurvesofthe304and316Lstainlesssteelslaser-weldedmaterialswereobtainedbyusingtheequalstraintestmethod. Andobvioushardeningbehaviorsduetothetinycrystal oftheweldedmaterialswerenoticed.Thedynamicmechanicalpropertiesofthe304,316Landwelded structurematerialswereexperimentallyinvestigatedbySHTBatelevatedtemperature.Constitutive parametersforthe304and316Lstainlesssteelswerefittedaccordingtodynamicexperimentaldata. ThenumericalsimulationfortheweldedstructurematerialsinSHTBtestwascarriedoutbyLS-DYNAanditwasfoundthatstressinthestructurematerialswasnon- equilibriumattheearlyloading stageduetomaterialimpedancedifference.Thestrainrate-relatedparametersinJohnson-Cookconstitutiveequationsfortheweldedmaterialswereobtainedbycombiningnumericalcalculationandexperimentaldata.
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