High Temperature Vibratory Response of Hastelloy-X: Stereo-DIC Measurements and Image Decomposition Analysis

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• 作者：R. B. Berke ; C. M. Sebastian ; R. Chona ; E. A. Patterson…
• 关键词：Stereo digital image correlation ; High temperature measurement ; Thermo ; acoustic loading ; Induction heating ; Image decomposition analysis
• 刊名：Experimental Mechanics
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：56
• 期：2
• 页码：231-243
• 全文大小：8,176 KB
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• 作者单位：R. B. Berke (1) (2)
  C. M. Sebastian (3)
  R. Chona (4)
  E. A. Patterson (3)
  J. Lambros (1)
  
  1. Department of Aerospace Engineering, University of Illinois, Urbana-Champaign, 306 Talbot Lab, Urbana, IL, 61801, USA
  2. Department of Mechanical and Aerospace Engineering, Utah State University, 4130 Old Main Hill, Logan, UT, 84322, USA
  3. School of Engineering, University of Liverpool, The Quadrangle, Brownlow Hill, Liverpool, L69 3GH, UK
  4. Structural Sciences Center, U.S. Air Force Research Laboratory, Dayton, OH, 45433, USA
  
• 刊物类别：Engineering
• 刊物主题：Mechanical Engineering
  Theoretical and Applied Mechanics
  Characterization and Evaluation Materials
  Structural Mechanics
  Engineering Fluid Dynamics
  Engineering Design
  
• 出版者：Springer Boston
• ISSN：1741-2765

文摘

The mechanical behavior of solids in combined high-temperature and vibratory environments, such as those experienced during hypersonic flight, are historically not well explored. In this work on Hastelloy-X plates, elevated temperatures were achieved by induction heating and periodic vibratory loading was applied using a shaker. Surface displacements and strains were measured using stereo digital image correlation (DIC) in the blue spectrum to alleviate issues associated with thermal radiation. Through the use of image decomposition techniques the resultant high-quality experimental data were used to validate numerical simulations of combined thermoacoustic loading. The simulations were based on the deformed shape and the corresponding temperature distributions measured experimentally as well as taking into account the thermal dependence of Hastelloy-X mechanical properties. Keywords Stereo digital image correlation High temperature measurement Thermo-acoustic loading Induction heating Image decomposition analysis