Experimental Investigation of 3-D Crack-Tip Deformation Using Moiré-Sagnac Interferometry

[+] Author and Article Information
B. S.-J. Kang, S. M. Anderson

Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506

J. Pressure Vessel Technol 123(1), 124-129 (Oct 02, 2000) (6 pages) doi:10.1115/1.1340635 History: Received October 15, 1999; Revised October 02, 2000
Copyright © 2001 by ASME
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Optical setup for combined moiré/Sagnac interferometry (dotted line-moiré interferometry; solid line-Sagnac interferometry)
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Schematic of mesh applied for (a) 2-D Jacobian derivative method, (b) 3-D Jacobian derivative method
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3-D displacement fields for Al 2024-T4 specimen at P=3848 N; mesh with d/B ratio of 0.65 superimposed on u and v-fields, and meshes of d/B ratio of 0.1625, 0.325, and 0.65 superimposed on w-field
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Radius of 0.7 times the specimen thickness (3.2 mm) superimposed on w displacement fields of Al 2024-T4 specimen for loads of (a) 2055 N, (b) 3100 N, (c) 3848 N, (d) 4088 N, (e) 4617 N, (f ) 5129 N
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3-D displacement fields for Inconel 909 specimen (P=4048 N,T=570 °C)




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