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Michael_Dean_Masters_Thesis.pdf (3.67 MB)

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The Effect of Implementing a Boundary Element Cohesive Zone Model with Unloading-Reloading Hysteresis on Bulk Material Response

Dean, Michael C
http://rave.ohiolink.edu/etdc/view?acc_num=osu1397664062

Abstract Details

2014, Master of Science, Ohio State University, Mechanical Engineering.
The effect of hysteretic material behavior on vibration characteristics of damaged structures is an important class of problems in nondestructive evaluation. The present work attempts to contribute to this field by considering a cohesive or smeared crack subjected to axial loading with a linear softening cohesive traction displacement model and unloading-reloading hysteresis. Irreversible unloading is assumed towards the direction of the origin for the cohesive traction displacement law. Hysteresis is modeled by assuming that reloading occurs in the direction of the monotonic cohesive envelope but at a slope less than the slope of the preceding unloading line. Direct boundary element method is used to obtain bulk hysteretic material response due to cyclic, monotonic, quasistatic loading. These results serve as input into existing nonlinear models for vibration signatures.
Prasad Mokashi, PhD (Advisor)
Daniel Mendelsohn, PhD (Committee Member)
Mark Walter, PhD (Committee Member)
132 p.
Mechanical Engineering
Cohesive zone; hysteresis; irreversible; boundary element

Recommended Citations

Citations

  • Dean, M. C. (2014). The Effect of Implementing a Boundary Element Cohesive Zone Model with Unloading-Reloading Hysteresis on Bulk Material Response [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397664062

    APA Style (7th edition)

  • Dean, Michael. The Effect of Implementing a Boundary Element Cohesive Zone Model with Unloading-Reloading Hysteresis on Bulk Material Response. 2014. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1397664062.

    MLA Style (8th edition)

  • Dean, Michael. "The Effect of Implementing a Boundary Element Cohesive Zone Model with Unloading-Reloading Hysteresis on Bulk Material Response." Master's thesis, Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397664062

    Chicago Manual of Style (17th edition)

osu1397664062
594
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This open access ETD is published by The Ohio State University and OhioLINK.