DOI: 10.1520/stp36621s. An Evaluation of Double-Torsion Testing

An Evaluation of Double-Torsion Testing—Analysis

10.1520/stp36621s

Crossref book-chapter

ASTM International100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959

Fracture Mechanics Applied to Brittle Materials (381)

Abstract

The double-torsion test configuration has many advantages over conventional fracture mechanics configurations for the evaluation of subcritical crack growth parameters and fracture toughness. These advantages—such as crack-length independence, four-point loading, simple specimen geometry, and ease of precracking—have been responsible for the increased use of the double-torsion configuration in recent years. However, before double-torsion testing can be adopted as a standard configuration, a number of unresolved questions need to be answered about the double-torsion specimen and about the experimental techniques involved in its use. The purpose of this paper is to address some of these questions and to indicate where further effort is needed to establish the validity of double-torsion testing. Assumptions of a compliance analysis for the double-torsion configuration are examined with particular attention given to the influence on experimental results that the violation of any of these assumptions may have. An analytical expression is derived for the compliance of a finite-thickness beam in torsion and is compared to the empirical compliance. Again the emphasis is on the assumptions of the derivation and how some of these restrictions might be relaxed.

Bibliography

Fuller, E. (1979). An Evaluation of Double-Torsion TestingâAnalysis. Fracture Mechanics Applied to Brittle Materials, 3â18.

Authors 1

ER Fuller (first)

References 27 Referenced 52

Pletka, B. J., Fuller, E. R., Jr., and Koepke, B. G., this publication, pp. 19–37.
Outwater, J. O. and Gerry, D. J., “On the Fracture Energy of Glass,” NRL Interim Contract Report, Contract NONR 3219 (01) (x), AD 640848, University of Vermont, Burlington, Vt., 081966.
Outwater, J. O. and Gerry, D. J., “On the Fracture Energy, Rehealing Velocity and Refracture Energy of Cast Epoxy Resin,” 22nd Society of Plastic Industry Conference, Paper 13-D, 1967; also,
Outwater, J. O. and Gerry, D. J., Journal of Adhesion 0021-8464, Vol. 1, 1969, pp. 290–298. (10.1080/00218466908072191)
{'volume-title': 'Materials Performance and the Deep Sea', 'year': '1969', 'author': 'Outwater', 'key': '2025062516400512100_p3_c4'} / Materials Performance and the Deep Sea by Outwater (1969)
Outwater, J. O. and Murphy, M. C., “On the Fatigue of Epoxy Resin,” 26th Society of Plastic Industry Conference, Paper 10-A, 1971.
{'volume-title': 'Fracture Toughness and Slow-Stable Cracking, ASTM STP 559', 'year': '1974', 'author': 'Outwater', 'key': '2025062516400512100_p3_c6'} / Fracture Toughness and Slow-Stable Cracking, ASTM STP 559 by Outwater (1974)
Kies, J. A. and Clark, A. B. J. in Fracture 1969 (Proceedings, 2nd International Conference on Fracture, Brighton, April 1969), Pratt P. L., Ed., Chapman and Hall Ltd., London, 1969, pp. 483–491.
Beacham, C. D., Kies, J. A., and Brown, B. F., Materials Research and Standards, Vol. 11, 1970, p. 30.
Evans, A. G., Journal of Materials Science 0022-246110.1007/BF00550196, Vol. 7, No. 10, 1972, pp. 1137–1146. (10.1007/BF00550196)
Evans, A. G., International Journal of Fracture, Vol. 9, No. 3, 1973, pp. 267–275. (10.1007/BF00049195)
Williams, D. P. and Evans, A. G., Journal of Testing and Evaluation 0090-3973, Vol. 1, No. 4, 1973, pp. 264–270. (10.1520/JTE10015J)
McKinney, K. R. and Smith, H. L., Journal of the American Ceramic Society 0002-7820, Vol. 56, No. 1, 1973, pp. 30–32. (10.1111/j.1151-2916.1973.tb12345.x)
Weidmann, G. W. and Holloway, D. G., Physics and Chemistry of Glasses 0031-9090, Vol. 15, No. 5, 1974, pp. 116–122.
Virkar, A. V. and Johnson, D. L., Journal of the American Ceramic Society 0002-7820, Vol. 59, No. 5–6, 1976, pp. 197–200. (10.1111/j.1151-2916.1976.tb10931.x)
Trantina, G. G., Journal of the American Ceramic Society 0002-7820, Vol. 60, No. 7–8, 1977, pp. 338–341. (10.1111/j.1151-2916.1977.tb15556.x)
Virkar, A. V. and Gordon, R. S., Journal of the American Ceramic Society 0002-7820, Vol. 58, No. 11–12, 1975, pp. 536–537. (10.1111/j.1151-2916.1975.tb18787.x)
Shetty, D. L. and Virkar, A. V., Journal of the American Ceramic Society 0002-7820, Vol. 61, No. 1–2, 1978, pp. 93–94. (10.1111/j.1151-2916.1978.tb09243.x)
Evans, A. G., Linzer, M., and Russell, L. R., Material Science and Engineering, Vol. 15, 1974, pp. 253–261. (10.1016/0025-5416(74)90059-7)
{'volume-title': 'Fracture Mechanics of Ceramics', 'author': 'Annis', 'key': '2025062516400512100_p3_c19'} / Fracture Mechanics of Ceramics by Annis
Richter, H., Berichte Deutsche Keramisch Gesellschaft, Vol. 54, No. 12, 1977, pp. 405–409.
Irwin, G. R., “A Critical Energy Rate Analysis of Fracture Strength,” Welding Journal (Research Supplement), 1954.
{'volume-title': 'Handbuch der Physik', 'year': '1958', 'author': 'Irwin', 'key': '2025062516400512100_p3_c22'} / Handbuch der Physik by Irwin (1958)
{'volume-title': 'Fracture Toughness Testing and Its Application, ASTM STP 381', 'year': '1965', 'author': 'Paris', 'key': '2025062516400512100_p3_c23'} / Fracture Toughness Testing and Its Application, ASTM STP 381 by Paris (1965)
{'volume-title': 'Theory of Elasticity', 'year': '1951', 'author': 'Timoshenko', 'key': '2025062516400512100_p3_c24'} / Theory of Elasticity by Timoshenko (1951)
{'volume-title': 'Handbook of Mathematical Functions', 'year': '1964', 'author': 'Abramowitz', 'key': '2025062516400512100_p3_c25'} / Handbook of Mathematical Functions by Abramowitz (1964)
{'volume-title': 'Formulas for Stress and Strain', 'year': '1975', 'author': 'Roark', 'key': '2025062516400512100_p3_c26'} / Formulas for Stress and Strain by Roark (1975)

Dates

Type	When
Created	16 years, 5 months ago (March 16, 2009, 4:23 p.m.)
Deposited	2 months ago (June 25, 2025, 7:52 p.m.)
Indexed	1 month, 1 week ago (July 20, 2025, 12:18 a.m.)
Issued	46 years, 8 months ago (Jan. 1, 1979)
Published	46 years, 8 months ago (Jan. 1, 1979)
Published Print	46 years, 8 months ago (Jan. 1, 1979)

Funders 0

None

BibTeX

@inbook{Fuller_1979, title={An Evaluation of Double-Torsion Testing—Analysis}, ISBN={9780803147478}, url={http://dx.doi.org/10.1520/stp36621s}, DOI={10.1520/stp36621s}, booktitle={Fracture Mechanics Applied to Brittle Materials}, publisher={ASTM International100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959}, author={Fuller, ER}, year={1979}, month=jan, pages={3–18} }

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