Abstract
In this study, the thermal expansion of bi-metal specimen is measured by digital image correlation (DIC). A measurement system is developed for the evaluation of complex thermal strain distribution on electronic packages. A heating chamber is designed for applying the thermal load and DIC provides the full-field thermal deformation distribution of the bi-metal specimen due to temperature changes. The in-plane strain distribution measured by DIC is influenced by the out-of-plane displacement. By measuring the thermal expansion of the materials having known thermal expansion coefficient at same time, the effect of the out-of-plane displacement on the in-plane strain measurement is corrected. Experimental Results show that the thermal strain of the bi-metal specimen can be obtained by the measurement system including the out-of-plane displacement correction.
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References
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© 2014 The Society for Experimental Mechanics, Inc.
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Tominaga, Y., Arikawa, S., Yoneyama, S., Fujimoto, Y., Omoto, Y. (2014). Observation of Thermal Strain on Electronic Packages Using Digital Image Correlation. In: Jin, H., Sciammarella, C., Yoshida, S., Lamberti, L. (eds) Advancement of Optical Methods in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-00768-7_18
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DOI: https://doi.org/10.1007/978-3-319-00768-7_18
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Publisher Name: Springer, Cham
Print ISBN: 978-3-319-00767-0
Online ISBN: 978-3-319-00768-7
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