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http://dx.doi.org/10.3795/KSME-A.2010.34.9.1201

Development of a Fatigue Testing System for Micro-Specimens  

Kim, Chung-Youb (Division of Mechanical and Automotive Engineering, Chonnam Nat'l Univ.)
Sharpe, W.N. (School of Mechanical Engineering, Johns Hopkins Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.9, 2010 , pp. 1201-1207 More about this Journal
Abstract
In this study, a fatigue testing system capable of performing load-controlled tension-tension tests for micro-specimens was developed by using an electro-magnetic actuator. Using this system, fatigue testing as well as tensile testing can be performed over a wide range of loading frequencies. Further, a new laser interferometric strain/displacement gage was used during fatigue testing to obtain high-resolution measurements of the cyclic deformation of thin films. Since the testing machine and the displacement gage are stable and show quick responses, the displacement can be measured instantaneously and continuously during fatigue testing, and high-resolution results can be obtained.
Keywords
Fatigue Testing System; Micro-Specimen; Laser Interferometric Strain Displacement Gage;
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