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Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers

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2011, Master of Science, Miami University, Computational Science and Engineering.
Rate-sensitivity, creep and relaxation behavior of medical grade polymers has been investigated experimentally along with an assessment of different constitutive models. Two types of modified common biomedical material A and B were tested. All materials exhibited rate-sensitivity and rate-reversal behavior during creep and relaxation testing with prior loading and unloading histories for tensile and compressive tests. Numerical modeling was performed through a modified version of the Viscoplasticity Based on Overstress (VBO) model. Simulation and prediction results with good quantitative and qualitative agreement were produced for all materials in tension and compression loading. Parameter fitting using the Hybrid and Three Network Models in PolyUMod software generated material constants for ABAQUS, and the finite element results for a knee joint were verified against experimental data. The parameter fitting was unable to produce acceptable results for MATERIAL C. Implementation of VBO into the PolyUMod library is recommended to enhance modeling capability.
Fazeel Khan (Advisor)
James Moller (Committee Member)
Gregory Reese (Committee Member)
88 p.

Recommended Citations

Citations

  • Yeakle, C. (2011). Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1313771863

    APA Style (7th edition)

  • Yeakle, Colin. Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers. 2011. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1313771863.

    MLA Style (8th edition)

  • Yeakle, Colin. "Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers." Master's thesis, Miami University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=miami1313771863

    Chicago Manual of Style (17th edition)