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
|
Aconstitutivemodelforsoftrockunderimpactload
- 1.
KeyLaboratoriesoftheMinistryofEducationofChinaforChinaSouthwest
- 2.
ResourceExploitationandEnvironmentalDisasterControlEngineering,
More Information
- Corresponding author:
XieLi-xiang
- Publish Date:
2013-03-25
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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
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