Aconstitutivemodelforsoftrockunderimpactload

ZhaoGuang-ming; XieLi-xiang; MengXiang-rui

doi:10.11883/1001-1455(2013)02-0126-07

Volume 33 Issue 2

Apr. 2014

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Article Navigation > Explosion And Shock Waves > 2013 > 33(2): 126-132

ZhaoGuang-ming, XieLi-xiang, MengXiang-rui. Aconstitutivemodelforsoftrockunderimpactload[J]. Explosion And Shock Waves, 2013, 33(2): 126-132. doi: 10.11883/1001-1455(2013)02-0126-07

Citation:

ZhaoGuang-ming, XieLi-xiang, MengXiang-rui. Aconstitutivemodelforsoftrockunderimpactload[J]. Explosion And Shock Waves, 2013, 33(2): 126-132. doi: 10.11883/1001-1455(2013)02-0126-07

ZhaoGuang-ming, XieLi-xiang, MengXiang-rui. Aconstitutivemodelforsoftrockunderimpactload[J]. Explosion And Shock Waves, 2013, 33(2): 126-132. doi: 10.11883/1001-1455(2013)02-0126-07

Citation:

ZhaoGuang-ming, XieLi-xiang, MengXiang-rui. Aconstitutivemodelforsoftrockunderimpactload[J]. Explosion And Shock Waves, 2013, 33(2): 126-132. doi: 10.11883/1001-1455(2013)02-0126-07

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Aconstitutivemodelforsoftrockunderimpactload

doi: 10.11883/1001-1455(2013)02-0126-07

1.
KeyLaboratoriesoftheMinistryofEducationofChinaforChinaSouthwest
2.
ResourceExploitationandEnvironmentalDisasterControlEngineering,

Funds:

NationalNaturalScienceFoundationofChina(51174005,51134012)

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Corresponding author: XieLi-xiang
Publish Date: 2013-03-25

Abstract

Abstract

Twokindsoftypicalsoftrockmaterials,mudstoneandsandymudstone,werechosenasthe researchedobjectives.Andtheiruniaxialdynamiccompressivepropertiesweretestedbyusingasplit Hopkinsonpressurebarsystem.Theobtainedstress-straincurvestakeoncomplexdynamiccharacteristicssuchasdistinctstrainhardeningandplasticfloweffects. Withaviewtotheaboveexperimentalresults, aviscoelasticstatisticaldamagemodelwasproposedbasedontheZhu-Wang-Tangmodel byconsideringtheinfluencesofdefectsinsoftrockmaterials.Theproposedmodelwasmadeupof twoMaxwellelementsandonestatisticaldamageelementinparallelconnection,inwhichthetwo Maxwellelementswithdifferentrelaxingtimesreflectingtheviscoelasticresponsesofsoftrockmaterialsatlowandhighstrainrates, respectively,andthestatisticaldamageelementtakingtheplaceof thenonlinearspringintheZhu-Wang-Tangmodel.Theexperimentaldatawerefittedtotheproposed model.Thefittedstress-traincurvesatdifferentstrainratesareinagreementwiththeexperimental ones
- solidmechanics,
- viscoelasticstatisticaldamagemodel,
- SHPB,
- softrock,
- dynamicmechanicalproperties,
- curvefitting

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