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ASTM Selected Technical Papers
Cracks and Fracture
By
JL Swedlow,
JL Swedlow
1
Carnegie-Mellon University
, Pittsburgh, Pa. 15213
; symposium co-chairman
.
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ML Williams
ML Williams
2
University of Pittsburgh
, Pittsburgh, Pa. 15261
: symposium co-chairman
.
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ISBN-10:
0-8031-0318-2
ISBN:
978-0-8031-0318-4
No. of Pages:
593
Publisher:
ASTM International
Publication date:
1976
eBook Chapter
A Laser Interferometry Method for Experimental Stress Intensity Factor Calibration
By
DE Macha
,
DE Macha
1
Materials research engineers
, Air Force Materials Laboratory, Wright-Patterson Air Force Base
, Ohio 45433
.
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WN Sharpe, Jr
,
WN Sharpe, Jr
2
Professor
, Department of Metallurgy, Mechanics, and Materials Science, Michigan State University
, East Lansing, Mich. 48824
.
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AF Grandt, Jr
AF Grandt, Jr
1
Materials research engineers
, Air Force Materials Laboratory, Wright-Patterson Air Force Base
, Ohio 45433
.
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Page Count:
16
-
Published:1976
Citation
Macha, D, Sharpe, W, Jr, & Grandt, A, Jr. "A Laser Interferometry Method for Experimental Stress Intensity Factor Calibration." Cracks and Fracture. Ed. Swedlow, J, & Williams, M. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 : ASTM International, 1976.
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A laser interferometry crack tip opening displacement measurement technique has been developed and is described here. This interferometric displacement gage was used to measure displacements near the crack tip in flawed specimens. Measured displacements were then converted to stress intensity factor calibration curves by means of the linear elastic fracture mechanics displacement equations. Application of this procedure to compact and edge-cracked aluminum specimens resulted in experimental stress intensity factor calibrations that agreed well with theoretical predictions for these two geometries.
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1968
.
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