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Correlation of Stress Intensity Range with Deviation of the Crack Front from the Primary Crack Plane in both Hand and Die Forged Aluminum 7085-T7452

Neely, Jared A.
http://orcid.org/0000-0001-7230-5848
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1557162451907811

Abstract Details

2019, Master of Science (M.S.), University of Dayton, Mechanical Engineering.
Experimental study accomplished the characterization of fatigue crack growth rates and mechanisms in both hand and die forged Aluminum 7085-T7452. Testing was conducted at various positive and negative loading ratios, primarily focused on L-S and T-S orientations to discover a correlation between crack tip branching or turning mechanisms and stress intensity. Interior delaminations were found to originate in the interior of the specimen and propagate outward to the surface and manifested as splitting cracks parallel to the loading direction. Stress intensity ranges have been correlated with the onset of crack deviation from the primary crack plane, as well as, the transition to branching dominated fatigue crack growth.
David Myszka (Committee Chair)
James Joo (Committee Member)
Thomas Spradlin (Committee Member)
Mark James (Committee Member)
101 p.
Aerospace Materials; Engineering; Materials Science; Mechanical Engineering
Al 7085-T7452; Al 7085; aluminum alloys; crack branching; delamination; crack arrest; crack splitting; crack delamination; L-S; T-S; fatigue; fatigue crack growth; fracture mechanics; crack deviation; aerospace structures; fracture mechanisms; branching

Recommended Citations

Citations

  • Neely, J. A. (2019). Correlation of Stress Intensity Range with Deviation of the Crack Front from the Primary Crack Plane in both Hand and Die Forged Aluminum 7085-T7452 [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1557162451907811

    APA Style (7th edition)

  • Neely, Jared. Correlation of Stress Intensity Range with Deviation of the Crack Front from the Primary Crack Plane in both Hand and Die Forged Aluminum 7085-T7452. 2019. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1557162451907811.

    MLA Style (8th edition)

  • Neely, Jared. "Correlation of Stress Intensity Range with Deviation of the Crack Front from the Primary Crack Plane in both Hand and Die Forged Aluminum 7085-T7452." Master's thesis, University of Dayton, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1557162451907811

    Chicago Manual of Style (17th edition)

dayton1557162451907811
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© 2019, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.