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AN INVESTIGATION OF QUASI-STATIC BEHAVIOR, HIGH CYCLE FATIGUE AND FINAL FRACTURE BEHAVIOR OFALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 2219

Vasudevan, Satish
http://rave.ohiolink.edu/etdc/view?acc_num=akron1193668130

Abstract Details

2007, Master of Science, University of Akron, Mechanical Engineering.
Fatigue is one of the very important factors that causes failure in structures used in aircraft construction. Prevention of fatigue failure has been of concern in the aircraft industry for many years. There have been developments to put forth new materials such as AA2024 and AA2219. Along with new materials, there has also been new fabrication processes, improved design concepts such as the inception of friction stir welding(FSW). Considering the fact that aluminum is extensively used in the aircraft industry, this research study involves testing and analysis of two conventional aluminum alloys namely a friction stir welded aluminum alloy 2024-T8 and aluminum alloy 2219-T62 in simple tension and in cyclic fatigue. Uniaxial tensile tests and cyclic stress amplitude controlled fatigue tests were carried out on samples from both the materials at stress ratios of R = 0.1 and R = 0.3. The conjoint influence of weld parameter and intrinsic microstructural features on hardness, tensile response and high cycle fatigue response was studied. The microscopic mechanisms governing quasi-static fracture and high cycle fatigue fracture are rationalized in light of intrinsic microstructural features of the alloy, deformation characteristics of the alloy microstructure, and nature of loading. All the tests were carried out at room temperature at the University of Akron . This study will provide useful and usable information relevant to the fatigue behavior of the aluminum alloys chosen.
Tirumalai Srivatsan (Advisor)
200 p.
Fatigue; Failure; Fracture analysis; Aluminum alloys; AA2024; AA2219.

Recommended Citations

Citations

  • Vasudevan, S. (2007). AN INVESTIGATION OF QUASI-STATIC BEHAVIOR, HIGH CYCLE FATIGUE AND FINAL FRACTURE BEHAVIOR OFALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 2219 [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1193668130

    APA Style (7th edition)

  • Vasudevan, Satish. AN INVESTIGATION OF QUASI-STATIC BEHAVIOR, HIGH CYCLE FATIGUE AND FINAL FRACTURE BEHAVIOR OFALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 2219. 2007. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1193668130.

    MLA Style (8th edition)

  • Vasudevan, Satish. "AN INVESTIGATION OF QUASI-STATIC BEHAVIOR, HIGH CYCLE FATIGUE AND FINAL FRACTURE BEHAVIOR OFALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 2219." Master's thesis, University of Akron, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1193668130

    Chicago Manual of Style (17th edition)

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© 2007, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.