Residual Stress Effects in Fatigue of Welded Joints
Publication: Journal of Structural Engineering
Volume 114, Issue 2
Abstract
Experimental results from constant amplitude fatigue tests are analyzed to account for the possible effect of residual stresses induced by welding of the specimens. It is shown that large amplitude precycling of a welded specimen can significantly change the S‐N curve for the specimen. Primarily the precycling reduces the fatigue damage caused by subsequent small amplitude cycles. Using simple hypotheses for the initial stress state and the following stress‐strain behavior, it is shown that Gerber's formula for the effect of mean stress gives results agreeing with the experimental data. Finally it is shown that consideration of residual stresses changes the S‐N curve enough to cause significant modification of the variable amplitude fatigue life predicted by the Rayleigh approximation.
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References
1.
Albrecht, P., and Sidani, M. (1986). “Fatigue strength of 8‐year weathered stiffeners in air and salt water,” Civ. Engrg. Report, Univ. of Maryland, College Park, Maryland, May.
2.
Berge, S., and Eide, O. I. (1982). “Residual stresses and stress interaction in fatigue testing of welded joints,” Residual Stress Effects in Fatigue, Amer. Soc. for Testing and Materials, STP 776, 1982, 115–131, Philadelphia, PA.
3.
Fuchs, Ft. O., and Stephens, R. I. (1980). Metal fatigue in engineering, John Wiley, New York, NY.
4.
Lutes, L. D., et al. (1984). “Stochastic fatigue damage accumulation,” J. of Struct. Engrg., ASCE, 110(ST11), 2585–2601.
5.
Miles, J. W. (1954). “On structural fatigue under random loading,” J. of Aeronautical Sci., Nov., 753–762.
6.
Miner, M. A. (1945). “Cumulative damage in fatigue,” J. of Appl. Mech., 12, A159‐A164.
7.
Mullen, C. L., and Merwin, J. E. (1982). “Fatigue life improvement factors obtained by weld reinforcement and toe grinding,” OTC Paper No. 4240, 14th Offshore Tech. Conf., Houston, Texas.
8.
Muvdi, B. B., and McNabb, J. W. (1980). Engineering mechanics of materials, Macmillan Publishing Co., New York, NY.
9.
Palmgren, A. (1924). “Die lebensdauer vo kugallagern,” Ver. Deut. Ingr., 68, 339–341 (in German).
10.
Sarkani, S. (1986). “Experimental and analytical stochastic fatigue of welded steel joints,” Thesis submitted to Rice University at Houston, Texas, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
11.
Whittemore, A. F. (1980). “The effects of random loading and block loading on fatigue life,” Thesis submitted to Rice University at Houston, Texas, in partial fulfillment of the requirements for the degree of Master of Science.
12.
Wirsching, P. H., and Light, M. C. (1980). “Fatigue under wide band random stresses,” J. of Struct. Engrg., ASCE, 106(ST7), 1593–1607.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 114 • Issue 2 • February 1988
Pages: 462 - 474
Copyright
Copyright © 1988 ASCE.
History
Published online: Feb 1, 1988
Published in print: Feb 1988
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