Title page for etd-0719110-215437


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URN etd-0719110-215437
Author Pin-shen Su
Author's Email Address No Public.
Statistics This thesis had been viewed 5346 times. Download 1930 times.
Department Mechanical and Electro-Mechanical Engineering
Year 2009
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Simulation and Analysis on the Blind Hole Method Employing Finite Element Method
Date of Defense 2010-07-03
Page Count 112
Keyword
  • blind-hole method
  • finite element method
  • hole-drilling method
  • residual stress
  • Abstract   In this study, the effectiveness of hole-drilling strain gage method on residual stress estimation is investigated. The thermal-elastic-plastic model of commercial Marc finite element method package is employed to simulate and build up the hole-drilling process and residual stress distribute. Two Inconel 690 alloy plate welded with GTAW filling I-52 solder has simulated by using the Marc software first. Then the traditional hole-drilling process is simulated. The simulated residual strain variation data is introduced into the hole-drilling strain-gage method to derive the possible residual stress components. The effects of drilling depth and drill size on the accuracy of estimated residual stress have also been discussed.
      A comparison between stress components estimated from the traditional hole-drilling strain gage method and simulated from the Marc software was presented. The modified dimensionless parameters are provided by applying the optimum technique. The numerical results indicate that the proposed dimensionless parameters can improve the accuracy of estimated residual stress components significantly.
    Advisory Committee
  • Ying-chine Tsai - chair
  • Der-min Tsai - co-chair
  • Yung-chuan Chen - co-chair
  • Shyh-chour Huang - co-chair
  • Jao-hwa Kuang - advisor
  • Files
  • etd-0719110-215437.pdf
  • indicate access worldwide
    Date of Submission 2010-07-19

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