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Proceedings Paper

Digital image correlation method for measuring thermal deformation of composite materials
Author(s): Li Jiang; Yan He; Dong-wei Wang; Ke Liu; Wei-ren Wu
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Paper Abstract

Thermal deformation measurement of the high-speed aircrafts under the high temperature is significant for reliability assessment, life prediction, and safety design for the materials and structures. This paper presents a digital image correlation method to accurately measure the full-field thermal deformation of composites under the environment of high temperature. First, real-time deformation images of experimental objects under different loads are acquired with CCD cameral. Based on the digital speckle correlation theory, the bilinear interpolation algorithm is employed to measure the thermal deformation. Last, the comparative analyses on measurement results by the proposed and traditional methods are conducted, as well as factors impacting measurement errors are analyzed.

Paper Details

Date Published: 10 October 2013
PDF: 6 pages
Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 89161Y (10 October 2013); doi: 10.1117/12.2035626
Show Author Affiliations
Li Jiang, Beijing Aerospace Institute for Metrology and Measurement Technology (China)
Yan He, Beijing Aerospace Institute for Metrology and Measurement Technology (China)
Dong-wei Wang, Beijing Aerospace Institute for Metrology and Measurement Technology (China)
Ke Liu, Beijing Aerospace Institute for Metrology and Measurement Technology (China)
Wei-ren Wu, Lunar Exploration and Aerospace Engineering Ctr. (China)


Published in SPIE Proceedings Vol. 8916:
Sixth International Symposium on Precision Mechanical Measurements
Shenghua Ye; Yetai Fei, Editor(s)

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