Stress-straincurveandstresswavecharacteristicsof

rocksubjectedtocyclicimpactloading

JinJie-fang; LiXi-bing; ChangJun-ran; TaoWei; QiuCan

doi:10.11883/1001-1455(2013)06-0613-07

Volume 33 Issue 6

Apr. 2014

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Article Navigation > Explosion And Shock Waves > 2013 > 33(6): 613-619

JinJie-fang, LiXi-bing, ChangJun-ran, TaoWei, QiuCan. Stress-straincurveandstresswavecharacteristicsofrocksubjectedtocyclicimpactloading[J]. Explosion And Shock Waves, 2013, 33(6): 613-619. doi: 10.11883/1001-1455(2013)06-0613-07

Citation:

JinJie-fang, LiXi-bing, ChangJun-ran, TaoWei, QiuCan. Stress-straincurveandstresswavecharacteristicsof rocksubjectedtocyclicimpactloading[J]. Explosion And Shock Waves, 2013, 33(6): 613-619. doi: 10.11883/1001-1455(2013)06-0613-07

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Stress-straincurveandstresswavecharacteristicsof rocksubjectedtocyclicimpactloading

doi: 10.11883/1001-1455(2013)06-0613-07

1.
SchoolofArchitecturalandSurveyingEngineering,JiangxiUniversityof
2.
ScienceandTechnology,Ganzhou341000,Jiangxi,China;
3.
SchoolofResourcesandSafetyEngineering,CentralSouthUniversity,

Funds:

NationalNaturalScienceFoundationofChina(51104068)

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Corresponding author: JinJie-fang
Publish Date: 2013-11-25

Abstract

Abstract

Aninnovativetestingtechniquecoupledbystaticanddynamicloadswasintroducedtoinvestigatethetypicaldynamicstress- straincurveoftherockspecimenundercyclicimpactloadingsaswell asthechangesofthereflectedandtransmittedwavespropagatinginit.Theresultsshowthatthesingletypicalstress- straincurveoftherockspecimenundercyclicimpactscanbedividedintofivestages: thecompactedstage,theelasticstage,theloadingstageoftheinternalcrackpropagation,thefirst unloadingstageandthesecondunloadingstage.Withtheincreaseinthenumberofimpact,theamplitudeofthereflectedwaveincreasesandthecorrespondingpeakvalueappearslater; theamplitude ofthetransmittedwavedecreasesandthecorrespondingpeakvalueoccurincreasinglyearlier,respectively. Itisdemonstratedthatthecyclicimpactsontherockspecimenareaccompaniedbythedamage accumulationresultinginthereducingofitsabilitytoresisttheexternalimpactloads.
- solidmechanics,
- dynamicstress-straincurve,
- cyclicimpact,
- rock,
- stresswavescharacteristic,
- damageaccumulation,
- strengthdeterioration

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