ISSN 1004-4140
CN 11-3017/P
Volume 15 Issue 2
Jun.  2006
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AO Bo, ZHAO Xin-bo, ZHANG Ding-hua, XU Xia-gang, WANG Huan-shu. Relation Analysis between Volume Percent of Crack Defect and CT Number[J]. CT Theory and Applications, 2006, 15(2): 64-68.
Citation: AO Bo, ZHAO Xin-bo, ZHANG Ding-hua, XU Xia-gang, WANG Huan-shu. Relation Analysis between Volume Percent of Crack Defect and CT Number[J]. CT Theory and Applications, 2006, 15(2): 64-68.
shu

Relation Analysis between Volume Percent of Crack Defect and CT Number

  • The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Xi'an, 710072, China

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  • Received Date: December 07, 2005
  • Available Online: December 16, 2022
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    • Abstract
  • In this paper, from the linear representation of linear attenuation coefficient of mixture, density variations and CT number variations are induced by microcracks under stress, the formula between relative density variations and relative CT number variations is obtained without impurity. With further analyzing, a formula between relative volume percent of crack defect variations and relative CT number variations is obtained respectively, without impurity and with impurity, and we extend conclusion of impurity to impurities. All these lay a theoretical foundation for material fatigue life prediction by using CT.
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