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TECHNICAL PAPERS

Residual Stress Reduction and Fatigue Strength Improvement by Controlling Welding Pass Sequences

[+] Author and Article Information
Masahito Mochizuki

Department of Manufacturing Science, Osaka University, Suita, Osaka 565-0871, Japan e-mail: mmochi@mapse.eng.osaka-u.ac.jp

Toshio Hattori

Hitachi, Ltd., Tsuchiura, Ibaraki 300-0013, Japan

Kimiaki Nakakado

Hitachi Construction Machinery Co., Ltd., Tsuchiura, Ibaraki 300-0013, Japan

J. Eng. Mater. Technol 122(1), 108-112 (Jun 28, 1999) (5 pages) doi:10.1115/1.482779 History: Received September 17, 1998; Revised June 28, 1999
Copyright © 2000 by ASME
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References

Almen, J. O., and Black, P. H., 1963, Residual Stresses and Fatigue in Metals, McGraw-Hill, NY.
Buchalet,  C. B., and Bamford,  W. H., 1976, “Stress Intensity Factor Solutions for Continuous Surface Flaws in Reactor Pressure Vessels,” Mechanics of Crack Growth, ASTM STP, Vol. 590, pp. 385–402.
Todoroki,  A., and Kobayashi,  H., 1988, “Prediction of Fatigue Crack Growth Rate in Residual Stress Field (Application of Superposition Technique),” Trans. Jpn. Soc. Mech. Eng. (in Japanese), 54A, No. 497, pp. 30–37.
Glinka,  G., 1979, “Effect of Residual Stress on Fatigue Crack Growth in Steel Weldments under Constant and Variable Amplitude Loads,” Fract. Mech. ASTM STP, 677, pp. 198–214.
Nelson,  D. V., 1982, “Effects of Residual Stress on Fatigue Crack Propagation,” Residual Stress Effects in Fatigue, ASTM STP, 776, pp. 172–194.
Parker,  A. P., 1982, “Stress Intensity Factors, Crack Profiles, and Fatigue Crack Growth Rates in Residual Stress Fields,” Residual Stress Effects in Fatigue, ASTM STP, 776, pp. 13–31.
Beghini,  M., Bertini,  L., and Vitale,  E., 1994, “Fatigue Crack Growth in Residual Stress Fields, Experimental Results and Modelling,” Fatigue Structure Eng. Mater. Structure , 17, pp. 1433–1444.
Maddox, S. J., 1991, Fatigue Strength of Weld Structures. Abington Publishing, Cambridge, pp. 152–154.
Yamashita,  T., Hattori,  T., Iida,  K., Nomoto,  T., and Sato,  M., 1997, “Effects of Residual Stress on Fatigue Strength of Small Diameter Welded Pipe Joint,” ASME J. Pressure Vessel Technol., 119, pp. 428–434.
Hudak,  S. J., Burnside,  O. H., and Chan,  K. S., 1985, “Analysis of Corrosion Fatigue Crack Growth in Welded Tubular Joints,” ASME J. Energy Resour. Technol. , 107, pp. 212–219.
Mochizuki, M., Saito, N., Enomoto, K., Sakata, S., and Saito, H., 1995, “A Study on Residual Stress of Butt-Welded Plate Joint Using Inherent Strain Analysis,” Transactions of the 13th International Conference on Structural Mechanics in Reactor Technology. Porto Alegre, Brazil, Vol. 2 Div. F, pp. 243–248.
Mochizuki,  M., Hayashi,  M., and Hattori,  T., 1996, “Effect of Welding Sequence on Residual Stress in Multi-Pass Butt-Welded Pipe Joints,” Trans. Jpn. Soc. Mech. Eng. (in Japanese), 62A, No. 604, pp. 2719–2725.
Lu, J., Edited, 1996, Handbook of Measurement of Residual Stresses, The Fairmont Press, Inc.
The Society of Materials Science, Japan, Edited., 1981, Standard Method of X-ray Stress Measurement (in Japanese), Yokendo Ltd.
Park, W., Kobayashi, H., Nakamura, H., and Koide, T., 1994, “Measurement and Evaluation of Welding Residual Stresses for Austenitic Stainless Steel by X-ray Diffraction Method,” Proceedings of the Annual Meeting of JSME/MMD (in Japanese), Vol. B, No. 940–37, pp. 70–71.
Mochizuki,  M., Enomoto,  K., Okamoto,  N., Saito,  H., and Hayashi,  E., 1993, “Welding Residual Stresses at the Intersection of a Small Diameter Pipe Penetrating a Thick Plate,” Nucl. Eng. Des., 144, No. 3, pp. 439–447.

Figures

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Configurations of a multi-pass fillet weld joint (Units: mm)
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Sequences of welding pass in multi-pass fillet weld joints
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Comparison of residual stress in a multi-pass fillet weld joint (last pass on the attachment)
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Comparison of residual stress in a multi-pass fillet weld joint (last pass on the main plate)
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History of residual stress at the weld toe in a multi-pass fillet weld joints by multipass welding (last pass on the attachment)
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History of residual stress at the weld toe in a multi-pass fillet weld joint by multipass welding (last pass on the main plate)
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Relation between nominal stress range and fatigue life in multi-pass fillet weld joints
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Residual stress relaxation by stress cycles at the weld toe in a multi-pass fillet weld joint (last pass on the attachment)
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Residual stress relaxation by stress cycles at the weld toe in a multi-pass fillet weld joint (last pass on the main plate)
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Effect of residual stress on fatigue strength in multi-pass fillet weld joints using a modified Goodman diagram

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