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通过多层介质散斑法测量球罐内表面裂纹的应力强度因子K_1
引用本文:王云山,潘秉智.通过多层介质散斑法测量球罐内表面裂纹的应力强度因子K_1[J].大庆石油学院学报,1990,14(2):102-107.
作者姓名:王云山  潘秉智
作者单位:大庆石油学院基础课处 (王云山),大庆石油学院机械系 (潘秉智),大庆石油学院机械系(黄小平)
摘    要:本文介绍了通过多层介质散斑照相退放大技术记录负片,采用逐点分析法测量受内压1?MnR钢制球形容器的内表面半椭圆形裂纹的SCOD及其应力强度因子K_1,并与Schmitt-Kiem解作了比较,两者符合得很好。

关 键 词:散斑法  SCOD(Surface  crack  opening  displacement)  应力强度因子  多层介质

THE MEASUREMENT OF SIF K_1 FOR PRESSURE VESSEL WITH INTERNAL SEMIELLIPTICAL SURFACE CRACK BY USE OF SPECKLE
Wang Yunshan,Pan Bingzhi,Huang Xiaoping.THE MEASUREMENT OF SIF K_1 FOR PRESSURE VESSEL WITH INTERNAL SEMIELLIPTICAL SURFACE CRACK BY USE OF SPECKLE[J].Journal of Daqing Petroleum Institute,1990,14(2):102-107.
Authors:Wang Yunshan  Pan Bingzhi  Huang Xiaoping
Affiliation:Wang Yunshan;Pan Bingzhi;Huang Xiaoping Department of Natural Science and Applications Department of Petroleum Mechanical Engineering
Abstract:The technique of amplifying reduction of laser speckle photography toreccord the negative pictures through the multi-layer-medium based on paraxialoptics was introduced. The determination of SCOD and K_1(stress intensity factor)of 16MnR steel pressurized spherical vessel with internal semiellipticalsurface crack by use of the technique and the method of from-point-to-pointstudy had been conducted. The results are properly consistent with the solutionof Schmitt-keim.
Keywords:speckle method  SCOD  SIF  multi-layer-medium
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