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Fracture and Fatigue Mechanisms of Spot Friction Welds in Lap-Shear Specimens of Aluminum 6111-T4 Sheets
Technical Paper
2005-01-1247
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this paper, fracture and fatigue mechanisms of spot friction welds in aluminum 6111-T4 lap-shear specimens are investigated based on experimental observations. Optical and scanning electron micrographs of these spot friction welds before and after failure under quasi-static and cyclic loading conditions are examined. The micrographs show the fracture and fatigue mechanisms of spot friction welds under quasi-static and cyclic loading conditions. The experimental observations indicate that the fracture mechanisms depend on the microstructure and geometry of welds under quasi-static loading conditions. Under cyclic loading conditions, the fatigue mechanisms depend not only on the microstructure and geometry of welds but also on the load amplitudes.
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Citation
Lin, P., Pan, J., and Pan, T., "Fracture and Fatigue Mechanisms of Spot Friction Welds in Lap-Shear Specimens of Aluminum 6111-T4 Sheets," SAE Technical Paper 2005-01-1247, 2005, https://doi.org/10.4271/2005-01-1247.Also In
References
- Thornton, P. Krause, A. Davies, R. 1996 Aluminum Spot Weld Welding Journal 75 101s 108s
- Gean, A. Westgate, S. A. Kucza, J. C. Ehrstorm, J. C. 1999 Static and Fatigue Behavior of Spot-Welded 5182-0 Aluminum Alloy Sheet Welding Journal 78 80s 86s
- Sakano, R. Murakami, K. Yamashita, K. Hyoe, T. Fujimoto, M. Inuzuka, M. Nagao, Y. Kashiki, H. 2001 Development of Spot FSW Robot System for Automobile Body Members Proceedings of the 3rd International Symposium of Friction Stir Welding Kobe, Japan Sep. 27 28 2001
- Iwashita, T. 2003 Method and apparatus for joining August 5 2003
- Lin, P.-C. Lin, S.-H. Pan, J. Pan, T. Nicholson, J. M. Garman, M. A. 2004 Microstructures and Failure Mechanisms of Spot Friction Welds in Lap-Shear Specimens of Aluminum 6111-T4 Sheets SAE Technical Paper No. 2004-01-1330 Society of Automotive Engineers Warrendale, PA
- Pan, T. Joaquin, A. Wilkosz, D. E. Reatherford, L. Nicholson, J. M. 2004 Spot Friction Welding for Sheet Aluminum Joining Proceedings of the 5th International Symposium of Friction Stir Welding Metz, France Sep. 14-16 2004
- Fujimoto, M. Inuzuka, M. Nishio, M. Nakashima, Y. 2004 Development of Friction Spot Joining (Report 1) - Cross Sectional Structures of Friction Spot Joints Preprints of the National Meeting of Japan Welding Society 74 4 5
- Fujimoto, M. Inuzuka, M. Nishio, M. Nakashima, Y. 2004 Development of Friction Spot Joining (Report 2) - Mechanical Properties of Friction Spot Joints Preprints of the National Meeting of Japan Welding Society 74 6 7
- Hinrichs, J. F. Smith, C. B. Orsini, B. F. DeGeorge, R. J. Smale, B. J. Ruehl, P. C. 2004 Friction Stir Welding for the 21st Century Automotive Industry Proceedings of the 5th International Symposium of Friction Stir Welding Metz, France Sep. 14 16 2004
- Lin, P.-C. Pan, J. Pan, T. 2005 Investigation of Fatigue Lives of Spot Friction Welds in Lap-Shear Specimens of Aluminum 6111-T4 Sheets Based on Fracture Mechanics SAE Technical Paper No. 2005-01-1250 Society of Automotive Engineers Warrendale, PA
- Oosterkamp, A. Oosterkamp, D. L. Nordeide, A. 2004 ‘Kissing Bond’ Phenomena in Solid-State Welds of Aluminum Alloys Welding Journal 83 8 225s 231s
- Pollard, B. 1982 Fatigue Strength of Spot Welds in Titanium-Bearing HSLA Steels SAE Technical Paper No. 820284 Society of Automotive Engineers Warrendale, PA
- Davison, J. A. Imhof, E. J. 1983 A Fracture-Mechanics and System-Stiffness Approach to Fatigue Performance of Spot-Welded Sheet Steels SAE Technical Paper No. 830034 Society of Automotive Engineers Warrendale, PA
- Lin, S.-H. Pan, J. Wung, P. Chiang, J. 2004 A Fatigue Crack Growth Model for Spot Welds in Various Types of Specimens under Cyclic Loading Conditions