Measurement and Numerical Simulations for Bearing Behavior of Bolt Holes at High Temperatures
碩士 === 國立成功大學 === 土木工程學系碩博士班 === 94 === Contact-type sensors, such as LVDTs, extensometers, potentiometers … etc., are frequently used for measuring displacements in structural component tests. However, for high temperature tests, contact-type displacement sensors are expensive and have their limits...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/97594945130104969755 |
| Summary: | 碩士 === 國立成功大學 === 土木工程學系碩博士班 === 94 === Contact-type sensors, such as LVDTs, extensometers, potentiometers … etc., are frequently used for measuring displacements in structural component tests. However, for high temperature tests, contact-type displacement sensors are expensive and have their limits on working temperatures and elongations. In this research, a non-contact type CCD measuring system was developed to improve the displacement measurement in high temperature component tests. The developed CCD displacement measuring system is proved feasible and effective by the comparison that the measured displacement results from bolt hole bearing tests at high temperatures agreed well with the results simulated by the finite element program ABAQUS/Standard. In addition, a finite element model developed by ABAQUS/Standard was employed in this thesis to simulate the bearing behavior of bolt holes at high temperatures. The material parameters of test steels required in the numerical model were provided by the material lab of China Steel Corporation. The test results show that the proposed finite element numerical model can successfully simulate the bearing behavior of bolt holes at high temperature.
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