Failure modes and fatigue life estimations of spot friction welds in lap-shear specimens of aluminum 6111-T4 sheets. Part 2: Welds made by a flat tool
Failure modes of spot friction welds made by a flat tool in lap-shear specimens of aluminum 6111-T4 sheets are investigated based on the approach presented in Part 1. Optical and scanning electron micrographs of the welds before and after failure under quasi-static and cyclic loading conditions are...
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Published in | International journal of fatigue Vol. 30; no. 1; pp. 90 - 105 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
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Oxford
Elsevier Ltd
2008
Elsevier Science |
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Abstract | Failure modes of spot friction welds made by a flat tool in lap-shear specimens of aluminum 6111-T4 sheets are investigated based on the approach presented in Part 1. Optical and scanning electron micrographs of the welds before and after failure under quasi-static and cyclic loading conditions are examined. The micrographs show that the microstructure, geometry, and the failure modes of the welds made by the flat tool are quite different from those of the welds made by a concave tool. Under quasi-static loading conditions, the failure mainly starts from cracking near the boundary of the stir zone close to the upper sheet surface inside the weld. Under cyclic loading conditions, the experimental results indicate three types of fatigue cracks. The first type initiates and grows near the boundary of the stir zone close to the upper sheet surface inside the weld as that under quasi-static loading conditions. The second type initiates and grows into the lower sheet outside the stir zone. The third type initiates from the bend surface of the upper sheet outside the weld. Under low-cycle loading conditions, the dominant kinked fatigue cracks are the first type growing near the boundary of the stir zone. Under high-cycle loading conditions, the dominant kinked fatigue cracks are the second type growing in the lower sheet outside the stir zone. Based on the experimental observations of the paths of the dominant kinked fatigue cracks, the fatigue crack growth model presented in Part 1 is then adopted to estimate the fatigue lives of the spot friction welds made by the flat tool. The fatigue life estimations based on the fatigue crack growth model with the global and local stress intensity factors as functions of the kink length and the experimentally determined kink angles agree well with the experimental results. A comparison of the experimental results suggests that the failure strengths of spot friction welds under quasi-static loading condition can cautiously be used as references to select a tool and the corresponding processing parameters. However, fatigue tests must be performed to validate the performance of spot friction welds under cyclic loading conditions. |
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AbstractList | Failure modes of spot friction welds made by a flat tool in lap-shear specimens of aluminum 6111-T4 sheets are investigated based on the approach presented in Part 1. Optical and scanning electron micrographs of the welds before and after failure under quasi-static and cyclic loading conditions are examined. The micrographs show that the microstructure, geometry, and the failure modes of the welds made by the flat tool are quite different from those of the welds made by a concave tool. Under quasi-static loading conditions, the failure mainly starts from cracking near the boundary of the stir zone close to the upper sheet surface inside the weld. Under cyclic loading conditions, the experimental results indicate three types of fatigue cracks. The first type initiates and grows near the boundary of the stir zone close to the upper sheet surface inside the weld as that under quasi-static loading conditions. The second type initiates and grows into the lower sheet outside the stir zone. The third type initiates from the bend surface of the upper sheet outside the weld. Under low-cycle loading conditions, the dominant kinked fatigue cracks are the first type growing near the boundary of the stir zone. Under high-cycle loading conditions, the dominant kinked fatigue cracks are the second type growing in the lower sheet outside the stir zone. Based on the experimental observations of the paths of the dominant kinked fatigue cracks, the fatigue crack growth model presented in Part 1 is then adopted to estimate the fatigue lives of the spot friction welds made by the flat tool. The fatigue life estimations based on the fatigue crack growth model with the global and local stress intensity factors as functions of the kink length and the experimentally determined kink angles agree well with the experimental results. A comparison of the experimental results suggests that the failure strengths of spot friction welds under quasi-static loading condition can cautiously be used as references to select a tool and the corresponding processing parameters. However, fatigue tests must be performed to validate the performance of spot friction welds under cyclic loading conditions. |
Author | Pan, T. Pan, J. Lin, P.-C. |
Author_xml | – sequence: 1 givenname: P.-C. surname: Lin fullname: Lin, P.-C. organization: Mechanical Engineering, National Chung-Cheng University, Chia-Yi 621, Taiwan – sequence: 2 givenname: J. surname: Pan fullname: Pan, J. email: jwo@umich.edu organization: Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA – sequence: 3 givenname: T. surname: Pan fullname: Pan, T. organization: Ford Research and Advanced Engineering, Ford Motor Company, Dearborn, MI 48121, USA |
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Keywords | Failure mode Fatigue life Aluminum 6111-T4 Lap-shear specimen Friction stir spot welding Fatigue crack propagation Spot friction weld Kinked crack Shear Resistance spot welding Mechanical properties Fatigue Fatigue crack Crack propagation Welded joint Friction Sheet metal Spot welding Friction welding |
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References | Sakano R, Murakami K, Yamashita K, Hyoe T, Fujimoto M, Inuzuka M, et al. Development of spot FSW robot system for automobile body members. In: Proceedings of the third international symposium of friction stir welding; 2001. Iwashita T. Method and apparatus for joining. US Patent 660,1751 B2, August, 5, 2003. Lin, Wang, Pan (bib19) 2007; 44 El-Soudani SM, Pellouz RM. Influence of inclusion content on fatigue crack propagation in aluminum alloys 1973;4:519–31. Lin, Pan, Wung, Chiang (bib18) 2006; 28 Zhang (bib11) 1997; 88 Wang, Lin, Pan (bib15) 2005; 42 Bergner, Zouhar (bib20) 2000; 22 Hinrichs JF, Smith CB, Orsini BF, DeGeorge RJ, Smale BJ, Ruehl PC. Friction stir welding for the 21st century automotive industry. In: Proceedings of the fifth international symposium of friction stir welding; 2004. Swellam, Banas, Lawrence (bib10) 1994; 17 Broek (bib23) 1973; 5 Lin P-C, Lin S-H, Pan J, Pan T, Nicholson JM, Garman MA. Microstructures and failure mechanisms of spot friction welds in lap-shear specimens of aluminum 6111-T4 sheets. SAE Technical Paper No. 2004-01-1330. Warrendale, PA: Society of Automotive Engineers; 2004. Wang, Pan (bib17) 2005; 42 Pan T, Joaquin A, Wilkosz DE, Reatherford L, Nicholson JM, Feng Z, et al. Spot friction welding for sheet aluminum joining. In: Proceedings of the fifth international symposium of friction stir welding; 2004. Broek D. The effect of intermetallic particles on fatigue crack propagation in aluminum alloys. In: Pratt PL (editor-in-chief), Fracture 1969, proceedings of the second international conference on fracture; 1969. p. 754–64. Fujimoto M, Inuzuka M, Nishio M, Nakashima Y. Development of friction spot joining (Report 1) – cross sectional structures of friction spot joints. The National Meeting of Japan Welding Society, No. 74; 2004. p. 4–5. Fujimoto M, Inuzuka M, Nishio M, Nakashima Y. Development of friction spot joining (Report 2) – mechanical properties of friction spot joints. The National Meeting of Japan Welding Society, No. 74; 2004. p. 6–7. Mitlin, Radmilovic, Pan, Chan, Feng, Santella (bib8) 2006; 441 Pan, Sheppard (bib14) 2003; 70 Zhang (bib12) 2001; 112 Pook (bib9) 1975; 11 Wang, Lin, Pan (bib16) 2005; 27 Newman, Dowling (bib13) 1998; 21 |
References_xml | – volume: 88 start-page: 167 year: 1997 end-page: 185 ident: bib11 article-title: Stress intensities at spot welds publication-title: Int J Fract contributor: fullname: Zhang – volume: 28 start-page: 792 year: 2006 end-page: 803 ident: bib18 article-title: A fatigue crack growth model for spot welds in various types of specimens under cyclic loading conditions publication-title: Int J Fatigue contributor: fullname: Chiang – volume: 112 start-page: 247 year: 2001 end-page: 274 ident: bib12 article-title: Fracture mechanics solutions to spot welds publication-title: Int J Fract contributor: fullname: Zhang – volume: 42 start-page: 6299 year: 2005 end-page: 6318 ident: bib15 article-title: Geometric functions of stress intensity factor solutions for spot welds in lap-shear specimens publication-title: Int J Solids Struct contributor: fullname: Pan – volume: 27 start-page: 581 year: 2005 end-page: 598 ident: bib16 article-title: Stress intensity factors for spot welds and associated kinked cracks in cup specimens publication-title: Int J Fatigue contributor: fullname: Pan – volume: 441 start-page: 79 year: 2006 end-page: 96 ident: bib8 article-title: Structure–properties relations in spot friction welded (also known as friction stir spot welded) 6111 aluminum publication-title: Mater Sci Eng A contributor: fullname: Santella – volume: 44 start-page: 1013 year: 2007 end-page: 1037 ident: bib19 article-title: Mode I stress intensity factor solutions for spot welds in lap-shear specimens publication-title: Int J Solids Struct contributor: fullname: Pan – volume: 5 start-page: 55 year: 1973 end-page: 66 ident: bib23 article-title: The role of inclusions in ductile fracture and fracture toughness publication-title: Eng Fract Mech contributor: fullname: Broek – volume: 17 start-page: 1197 year: 1994 end-page: 1204 ident: bib10 article-title: A fatigue design parameter for spot welds publication-title: Fatigue Fract Eng Mater Struct contributor: fullname: Lawrence – volume: 70 start-page: 671 year: 2003 end-page: 684 ident: bib14 article-title: Stress intensity factors in spot welds publication-title: Eng Fract Mech contributor: fullname: Sheppard – volume: 21 start-page: 1123 year: 1998 end-page: 1132 ident: bib13 article-title: A crack growth approach to life prediction of spot-welded lap joints publication-title: Fatigue Fract Eng Mater Struct contributor: fullname: Dowling – volume: 42 start-page: 6277 year: 2005 end-page: 6298 ident: bib17 article-title: a computational study of local stress intensity factor solutions for kinked cracks near spot welds in lap-shear specimens publication-title: Int J Solids Struct contributor: fullname: Pan – volume: 11 start-page: 173 year: 1975 end-page: 176 ident: bib9 article-title: Fracture mechanics analysis of the fatigue behaviour of spot welds publication-title: Int J Fract contributor: fullname: Pook – volume: 22 start-page: 229 year: 2000 end-page: 239 ident: bib20 article-title: A new approach to the correlation between the coefficient and the exponent in the power law equation of fatigue crack growth publication-title: Int J Fatigue contributor: fullname: Zouhar |
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SubjectTerms | Aluminum 6111-T4 Applied sciences Exact sciences and technology Failure mode Fatigue Fatigue crack propagation Fatigue life Friction stir spot welding Joining, thermal cutting: metallurgical aspects Kinked crack Lap-shear specimen Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Spot friction weld Welding |
Title | Failure modes and fatigue life estimations of spot friction welds in lap-shear specimens of aluminum 6111-T4 sheets. Part 2: Welds made by a flat tool |
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