Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers
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Miami University / OhioLINK
2011
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=miami1313771863 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-miami13137718632021-08-03T05:41:25Z Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers Yeakle, Colin Biomedical Engineering Materials Science Mechanical Engineering polymers constitutive model VBO creep relaxation numerical model 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. 2011-08-23 English text Miami University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=miami1313771863 http://rave.ohiolink.edu/etdc/view?acc_num=miami1313771863 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Biomedical Engineering Materials Science Mechanical Engineering polymers constitutive model VBO creep relaxation numerical model |
| spellingShingle |
Biomedical Engineering Materials Science Mechanical Engineering polymers constitutive model VBO creep relaxation numerical model Yeakle, Colin Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers |
| author |
Yeakle, Colin |
| author_facet |
Yeakle, Colin |
| author_sort |
Yeakle, Colin |
| title |
Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers |
| title_short |
Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers |
| title_full |
Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers |
| title_fullStr |
Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers |
| title_full_unstemmed |
Experimental Testing and Numerical Modeling to Capture Deformation Phenomenon in Medical Grade Polymers |
| title_sort |
experimental testing and numerical modeling to capture deformation phenomenon in medical grade polymers |
| publisher |
Miami University / OhioLINK |
| publishDate |
2011 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=miami1313771863 |
| work_keys_str_mv |
AT yeaklecolin experimentaltestingandnumericalmodelingtocapturedeformationphenomenoninmedicalgradepolymers |
| _version_ |
1719423658546429952 |