We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Ultraviolet Single-Camera Stereo-Digital Image Correlation for Deformation Measurement up to 2600 °C.
- Authors
Luo, Y. X.; Dong, Y. L.; Yang, F. Q.; Lu, X. Y.
- Abstract
Background: In the mechanical testing of high-temperature structural materials, ultra-high temperature deformation measurement is very necessary and very challenging. Objective: To overcome the challenge of using single-camera stereo-digital image correlation (stereo-DIC) for ultra-high-temperature measurement. Methods: An ultraviolet single-camera stereo-DIC system combining active UV illuminations, an ultraviolet camera, a single UV narrow bandpass filter, a reflective prism and two reflectors was established. In addition, two types of high temperature speckle patterns were prepared A tensile test of C/C composites at 2600 °C was conducted to verify the effectiveness and accuracy of the developed technology. Results: The ultraviolet single-camera stereo-DIC system has excellent resistance to thermal radiation. As well, the two types of speckle patterns are available at 2600 °C. And the values of elastic modulus calculated by the developed technology and high-temperature extensometer are very close to each other, and the relative errors are less than 7%. Conclusions: The well matched strain results with high-temperature extensometer data demonstrates that the ultraviolet single-camera stereo-DIC is an effective ultra-high temperature deformation measurement technology and has great potential in characterizing the deformation response of materials at ultra-high temperatures.
- Subjects
SPECKLE interference; PYROMETRY; DEFORMATION potential; ELASTIC modulus; HEAT radiation &; absorption
- Publication
Experimental Mechanics, 2024, Vol 64, Issue 8, p1343
- ISSN
0014-4851
- Publication type
Article
- DOI
10.1007/s11340-024-01087-5