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An Advanced Real-Time Moiré Interferometry System With Conductive Heating/Cooling and Its Application on a Creep Behavior of Solder

[+] Author Affiliations
Seungmin Cho

Samsung Techwin Company, Ltd., Yongin, Gyunggi, South Korea

Changsoo Jang, Bongtae Han

University of Maryland, College Park, MD

Paper No. IMECE2007-43698, pp. 479-487; 9 pages
doi:10.1115/IMECE2007-43698
From:
  • ASME 2007 International Mechanical Engineering Congress and Exposition
  • Volume 10: Mechanics of Solids and Structures, Parts A and B
  • Seattle, Washington, USA, November 11–15, 2007
  • Conference Sponsors: ASME
  • ISBN: 0-7918-4304-1 | eISBN: 0-7918-3812-9
  • Copyright © 2007 by ASME

abstract

A new real-time moiré interferometry system based on conductive heating and cooling is introduced. A special chamber is designed and fabricated using a high power thermoelectric cooler, which is connected to the compact moiré interferometer to form the system. Compared with the conventional convection-based system, the proposed system provides a higher ramp rate while improving the temperature response to control signals. The system is applied to investigate the creep behavior of a eutectic solder material. A new solder joint configuration is designed and fabricated to produce a virtually uniform shear strain field. The deformation of solder joint is documented at a controlled ramp rate over several thermal cycles. The experimental results are analyzed and compared with those of finite element analyses to investigate the validity of solder constitutive models available in the literatures.

Copyright © 2007 by ASME

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