A simple method for measuring surface strains around cracks

Experimental Mechanics

Volumn 36, Issue 2, 1996, Pages 173-179

  Wissuchek, D J ^a   Mackin, T J ^b   DeGraef, M ^c   Lucas, G E ^d   Evans, A G ^e  

^a Corning Inc ^*  (United States)

^b University of Illinois at Urbana Champaign   (United States)

^c CARNEGIE MELLON UNIVERSITY   (United States)

^d University of California   (United States)

^e HARVARD UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SOFTWARE; CRACK PROPAGATION; DEFORMATION; IMAGE ANALYSIS; MECHANICAL TESTING; STAINLESS STEEL; STRESS INTENSITY FACTORS; SURFACES; TITANIUM ALLOYS;

CRACK TIP STRESS FIELDS; DISPLACEMENT AND STRAIN IMAGE EVALUATION SYSTEM (DAISIES); IN SITU DEFORMATION; STRAIN MAPS; SURFACE STRAINS;

STRAIN MEASUREMENT;

EID: 0030168867     PISSN: 00144851     EISSN: None     Source Type: Journal    
DOI: 10.1007/BF02328715     Document Type: Article

References (25)

1. Post, D., "Developments in Moiré Interferometry," Optical Eng., 21 (3), 458-467 (1982).
2. Han, B. and Post, D., "Immersion Interferometer for Microscopic Moiré Interferometry," EXPERIMENTAL MECHANICS, 32 (2), 38-43 (1992).
3. Cox, B. N., Morris, W. L. and James, M. R., "High Sensitivity, High Spatial Resolution Strain Measurements in Composites and Alloys," Proc. Nondestructive Testing and Eval. of Adv. Mat. and Composites, Colorado Springs, CO, 25-39 (1986).
4. James, M. R., Morris, W. L., Cox, B. N. and Dadkhah, M. S., "Description and Application of Displacement Measurements Based on Digital Image Processing," Micromechanics: Experimental Techniques, ASTM AMD vol. 102, 89-100 (1989).
5. Davidson, D. L., Chan, K. S. and Page, R. A., "Automated High-Resolution Displacement Measurements Based on Digital Image Processing," Micromechanics: Experimental Techniques, ASTM AMD vol. 102, 73-88 (1989).
6. Han, G., Sutton, M. A. and Chao, Y. J., "A Study of Stationary Crack Tip Fields in Thin Sheets by Computer Vision," EXPERIMENTAL MECHANICS, 34 (3), 125-139 (1994).
7. Fail, R. W. and Taylor, C. E., "An Application of Pattern Mapping to Plane Motion," EXPERIMENTAL MECHANICS, 30 (4), 404-410 (1990).
8. Bradley, W. L., "Fracture Toughness of polymer Matrices in Relation to Interlaminar Fracture Toughness," Application of Fracture Mechanics to Composite Materials, ed. K. Friedrich, Elsevier North-Holland, New York, 156-187 (1990).
9. Sirkis, J. S. and Lim, T. J., "Displacement and Strain Measurement with Automated Grid Methods," EXPERIMENTAL MECHANICS, 31 (4), 382-388 (1991).
10. Joshi, R. B., Bayoumi, A. E. and Zbib, H. M., "The Use of Digital Processing in Studying Stretch-Forming Sheet Metal," EXPERIMENTAL MECHANICS 32 (2), 117-123 (1992).
11. Hatanaka, K., Fujimitsu, T. and Inoue, H., "A Measurement of Three-Dimensional Strains around a Crack Tip," EXPERIMENTAL MECHANICS, 32 (3) 211-218 (1992).
12. Hall, E. L., Computer Image Processing and Recognition, Academic Press, New York, 186 (1979).
13. Timoshenko, S. P. and Goodier, J. N., Theory of Elasticity, McGraw-Hill, New York, 6 (1951).
14. Malvern, L. E., Introduction to the Mechanics of a Continuous Medium, Prentice Hall, Englewood Cliffs, NJ, 160 (1969).
15. Rice, J. R., "A Path Independent Integral and the Approximate Analysis of Strain Concentration by Notches and Cracks," ASME J. Appl. Mech., 35, 379-386 (1968).
16. R Curves of Four Aluminum Alloys," ASTM STP 1131, 135-153 (1992).
17. Hutchison, J. W., "Singular Behavior at the End of a Tensile Crack in a Hardening Material," J. Mech. and Phys. Solids, 16, 13-27 (1968).
18. Rice, J. R. and Rosengren, G. F., "Plane Strain Deformation Near a Crack Tip in a Power Law Hardening Material," J. Mech. and Phys. Solids, 16, 1-12 (1968).
19. Wissuchek, D. J., unpublished work.
20. Shih, C. F., "Small-Scale Yielding Analyis of Mixed Mode Plane Strain Crack Problems," Fracture Analysis, ASTM STP 560, American Society for Testing and Materials, 187-210 (1974).
21. Deve, H. E., Evans, A. G. and Shih, D. S., "A High Toughness Gamma Titanium Aluminide," Acta Metall., 40, 1259-1265 (1992).
22. Chan, K. S., "Toughening Mechanisms in Titanium Aluminides," Metall. Trans. A, 24A, 569-583 (1993).
23. Chan, K. S. and Kim, Y.-W., "Relationships of Slip Morphology, Microcracking, and Fracture Resistance in a Lamellar TiAl-Alloy," Metall. Trans. A, 25A, 1217-1228 (1994).
24. Kim, Y. W., "Microstructural Evolution and Mechanical Properties of a Forged Gamma Titanium Aluminide Alloy," Acta Metall. Mater., 40, 1121-1133 (1992).
25. Wissuchek, D. J., submitted to Metall. Trans. A.