一种新型的实验地震学光学模拟系统
|
摘要
介绍了一种新型的实验地震学光学模拟系统。它将实时全息技术与声发射源测定技术相结合应用于实验地震学研究 ,前者检测和记录试件内应力场及其变化 ,后者检测和记录微破裂所激发的超声波 ,借以确定试件内微破裂发生的时间、位置和强度。综合两种方法所获数据 ,从微破裂丛集成核过程与应力场之间的关系来寻求破裂形成、扩展的某些规律性。试验观察到一些极有研究价值的现象 ,特别是系统能将破裂的形成和扩展 ,从微破裂丛集成核直至整个试件碎裂的过程 ,以较高的分辨率记录下来 ,初步获得微破裂成核过程与应力场关系的某些规律性。
By means of combining the real-time holographic device and the acoustic source testing device, a new tool for experimental earthquake simulation research is developed. The stress fields and its variations in the specimen are recorded by real-time holographic interferometry while the wave-forms of ultra-sonic waves stimulated by the micro-cracks are recorded by a transient automatic wave-form recorder to determine the time, location and intensity of the micro-cracks. Some noticeable phenomena have been observed in the experiment, the elastic strain and plastic strain can be visualized clearly and can be recorded in high resolution by this method as well as the generation and extending of cracks.
By means of combining the real-time holographic device and the acoustic source testing device, a new tool for experimental earthquake simulation research is developed. The stress fields and its variations in the specimen are recorded by real-time holographic interferometry while the wave-forms of ultra-sonic waves stimulated by the micro-cracks are recorded by a transient automatic wave-form recorder to determine the time, location and intensity of the micro-cracks. Some noticeable phenomena have been observed in the experiment, the elastic strain and plastic strain can be visualized clearly and can be recorded in high resolution by this method as well as the generation and extending of cracks.
引文
1 C .Vest.HolographicInterferometry[M ].NewYork:JohnWiley&Sons,1979.373～377
2 YangYunhai,XuZhaoyong,ZhaoJinming etal..Experimentalstudybetweencore formingprocessofmicroruptureandstressfield[J].JournalofSeismologicalResearch(地震研究),1998,21(2):128～133(inChinese)
3 XiongBingheng,ZhangYongan,WangZhenrongetal..Areal timehologramrecordingmethodforobtaininghighbrightnessofthetestingopticalfieldandhighcontrastofthefringes[J].ActaOpticaSinica(光学学报),1999,19(5):604～608(inChinese)
4 XiongBingheng,WangZhengrong,ZhangYongan etal..Anoveltestingmethodoftransparentobjectsforreal timeholography[J].ActaOpticaSinica(光学学报),2001,21(7):841～845(inChinese)
5 Z .Xu,R .Yang,J.Zhaoetal..ExperimentalStudyofSeismicShortImminentPrecursoryMechanismbyNewMethodsandTechnique[C].The2ndACESWorkshopofAPECCooperationforEarthquakeSimulation,Oct.15～20,2000,Tokyo&Hakone,Japan
6 WangZhengrong,XiongBingheng,ZhangYongan etal..Asimplesystemforstudinglow speed phenomenawithreal timeholographicinterferometry[J].ActaOpticaSinica(光学学报),1997,17(5):572～576(inChinese)
7 XiongBingheng,SheCanlin,WangZhenrong etal..Predictingthedeformationdirectionsofanobjectbyusingapiezoelectricshifter[J].ActaPhononicaSinica(光子学报),1996,25(8):713～718(inChinese)
8 XiongBingheng,WangZhenrong,ZhangYonganetal..Astudyformakingathinsilver halide phasehologramwithanexpectation phasemodulation[J].ActaOpticaSinica(光学学报),1997,17(8):1021～1027(inChinese)
9 DuYijun,MaJin,LiJianguo.Interactionandstabilityofen echeloncracks[C].ChineseJournalofGeophysics(地球物理学报(实验地球物理研究文集)),1989,32(Suppl.1):218～231(inChinese)
10 LiShiyu,TengChunkai,LuZhenye etal..Theexperimentalinvestigationofmicrocracksnucleationintypicaltectonics[J].ActaSeismologicaSinica(地震学报),2000,22(3):278～287(inChinese)
11 ZhangZhili,FangXing.Experimentstudyonthepropagation processesofmixedmodecracksinaninhomogeneousrock plates[C ].ChineseJournalofGeophysics(地球物理学报(实验地球物理研究文集)),1989,32(Suppl.1):183～193(inChinese)
12 WuDafang,GaoZhentong,WuZhengxi.Deformationofmixed modestressintensityfactorforthree dimensionalcrackbycausticsand photoelasticity[J].JournalofExperimentalMechanics(实验力学),1998,13(1):1～8(inChinese)
13 GuanDachun,JinJiang,WangMu.Twoimprovingmethodsfordeterminingstressintensityfactorsbythemethodofcaustics[J].JournalofExperimentalMechanics(实验力学),1996,11(4):457～462(inChinese)
2 YangYunhai,XuZhaoyong,ZhaoJinming etal..Experimentalstudybetweencore formingprocessofmicroruptureandstressfield[J].JournalofSeismologicalResearch(地震研究),1998,21(2):128～133(inChinese)
3 XiongBingheng,ZhangYongan,WangZhenrongetal..Areal timehologramrecordingmethodforobtaininghighbrightnessofthetestingopticalfieldandhighcontrastofthefringes[J].ActaOpticaSinica(光学学报),1999,19(5):604～608(inChinese)
4 XiongBingheng,WangZhengrong,ZhangYongan etal..Anoveltestingmethodoftransparentobjectsforreal timeholography[J].ActaOpticaSinica(光学学报),2001,21(7):841～845(inChinese)
5 Z .Xu,R .Yang,J.Zhaoetal..ExperimentalStudyofSeismicShortImminentPrecursoryMechanismbyNewMethodsandTechnique[C].The2ndACESWorkshopofAPECCooperationforEarthquakeSimulation,Oct.15～20,2000,Tokyo&Hakone,Japan
6 WangZhengrong,XiongBingheng,ZhangYongan etal..Asimplesystemforstudinglow speed phenomenawithreal timeholographicinterferometry[J].ActaOpticaSinica(光学学报),1997,17(5):572～576(inChinese)
7 XiongBingheng,SheCanlin,WangZhenrong etal..Predictingthedeformationdirectionsofanobjectbyusingapiezoelectricshifter[J].ActaPhononicaSinica(光子学报),1996,25(8):713～718(inChinese)
8 XiongBingheng,WangZhenrong,ZhangYonganetal..Astudyformakingathinsilver halide phasehologramwithanexpectation phasemodulation[J].ActaOpticaSinica(光学学报),1997,17(8):1021～1027(inChinese)
9 DuYijun,MaJin,LiJianguo.Interactionandstabilityofen echeloncracks[C].ChineseJournalofGeophysics(地球物理学报(实验地球物理研究文集)),1989,32(Suppl.1):218～231(inChinese)
10 LiShiyu,TengChunkai,LuZhenye etal..Theexperimentalinvestigationofmicrocracksnucleationintypicaltectonics[J].ActaSeismologicaSinica(地震学报),2000,22(3):278～287(inChinese)
11 ZhangZhili,FangXing.Experimentstudyonthepropagation processesofmixedmodecracksinaninhomogeneousrock plates[C ].ChineseJournalofGeophysics(地球物理学报(实验地球物理研究文集)),1989,32(Suppl.1):183～193(inChinese)
12 WuDafang,GaoZhentong,WuZhengxi.Deformationofmixed modestressintensityfactorforthree dimensionalcrackbycausticsand photoelasticity[J].JournalofExperimentalMechanics(实验力学),1998,13(1):1～8(inChinese)
13 GuanDachun,JinJiang,WangMu.Twoimprovingmethodsfordeterminingstressintensityfactorsbythemethodofcaustics[J].JournalofExperimentalMechanics(实验力学),1996,11(4):457～462(inChinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心