Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility
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University of Akron / OhioLINK
2021
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=akron1633369023795384 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-akron16333690237953842021-11-15T05:17:23Z Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility Hoffman, Leland C. Mechanical Engineering Ceramic Matrix Composites Hypersonic Material Testing Burner Rig Hypersonic research efforts are currently increasing as there is a race to develophypersonic vehicles. Currently, ceramic matrix composites (CMCs) are one of the leadingmaterials of interest for these applications; however, due to their complexity, largeamounts of testing must be conducted to further understand their behavior under suchconditions. A versatile burner rig facility consisting of a high velocity oxygen fuel(HVOF) torch, capable of reaching extreme temperatures (> 2200 °C) and nearhypersonic velocities (~Mach 4.9), has recently been developed at the University ofAkron [1]. In this work, several CMC systems were tested at ~Mach 4.9 and 1650 °C fora total of 10 minutes. Residual strength tensile and flexural tests were conducted afterburner rig testing in order to determine the loss of strength and modulus. Electricalresistance (ER) was used alongside these tests as a non-destructive evaluation tool. Theresults showed large amounts of mass loss in several of these composite systems,especially those containing carbon fibers and interphases, as well as significantly reducedstrength and modulus. Resistance change during burner rig testing was correlated tooxidative damage via mass loss and temperature change. A resistance model wasdeveloped for one of the composite systems that estimated the change experienced duringburner rig testing due to oxidation of carbon fibers. Finally, samples were sectioned andpolished to analyze the damage incurred during burner rig and residual strength testing 2021-11-14 English text University of Akron / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=akron1633369023795384 http://rave.ohiolink.edu/etdc/view?acc_num=akron1633369023795384 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 |
Mechanical Engineering Ceramic Matrix Composites Hypersonic Material Testing Burner Rig |
| spellingShingle |
Mechanical Engineering Ceramic Matrix Composites Hypersonic Material Testing Burner Rig Hoffman, Leland C. Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility |
| author |
Hoffman, Leland C. |
| author_facet |
Hoffman, Leland C. |
| author_sort |
Hoffman, Leland C. |
| title |
Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility |
| title_short |
Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility |
| title_full |
Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility |
| title_fullStr |
Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility |
| title_full_unstemmed |
Thermo-Mechanical Evaluation Of Ceramic Matrix CompositesIn a Near Hypersonic Burner Rig Facility |
| title_sort |
thermo-mechanical evaluation of ceramic matrix compositesin a near hypersonic burner rig facility |
| publisher |
University of Akron / OhioLINK |
| publishDate |
2021 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=akron1633369023795384 |
| work_keys_str_mv |
AT hoffmanlelandc thermomechanicalevaluationofceramicmatrixcompositesinanearhypersonicburnerrigfacility |
| _version_ |
1719493773139902464 |