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oai:www.ideals.illinois.edu:2142/14631 2023-07-10 col_2142_5131 col_2142_14770 com_2142_5130 com_2142_3518 com_2142_234

Andrawes, Bassem Andrawes, Bassem Wierschem, Nicholas E. 2010-01-06T16:20:08Z 2010-01-06T16:20:08Z 2010-01-06T16:20:08Z Superelastic shape memory alloys (SMAs) are a class of metallic alloys that have the unique property of being able to undergo large amounts of plastic strain while remaining elastic and dissipating energy. This thesis explored a strategy for adding ductility and energy dissipation to FRP reinforcing bars through the use of SMA-fiber reinforced polymer (SMA-FRP) composites, an innovative type of composite that consists of a polymer matrix reinforced with small diameter superelastic SMA wires with and without additional conventional fiber reinforcement. In this study an analytical model for the behavior of SMA-FRPs was developed based on experimental results. This model was then used in a parametric study to determine the effect of the composition of the composite on its performance. After which, the SMA-FRP bars were explored as reinforcement for concrete structures with analyses at the section, substructure, and structural levels. From this study it was found that SMA-FRP reinforcing bars behave in a ductile manner and are capable of dissipating energy. Furthermore, it was found that SMA-FRP bars have more potential to improve the ductility and energy dissipation capability of concrete structures compared to conventional FRP bars. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2009-12-10T20:51:00Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Wierschem_Master_Thesis_Final.pdf: 3522106 bytes, checksum: 335434d644c3a17944f85f4ecd46fccb (MD5) 2009-12 Made available in DSpace on 2010-01-06T16:20:08Z (GMT). No. of bitstreams: 4 license.txt: 4068 bytes, checksum: 0b49c6fb936881a558862c9a77a07bbf (MD5) Wierschem_Nicholas.pdf: 3466092 bytes, checksum: 94b023a9263d43ec4db7c0d92fbaeea6 (MD5) Wierschem_Master_Thesis_Final.pdf: 3522106 bytes, checksum: 335434d644c3a17944f85f4ecd46fccb (MD5) 1_Wierschem_Nicholas.pdf: 3466092 bytes, checksum: 94b023a9263d43ec4db7c0d92fbaeea6 (MD5) http://hdl.handle.net/2142/14631 en Copyright 2009 Nicholas E. Wierschem reinforced concrete shape memory alloy Superelastic Shape Memory Alloys (SMA) Fiber Reinforced Polymer (FRP) ductility energy dissipation Superelastic shape memory alloy composite bars for reinforcing concrete structures Civil & Environmental Eng 1251 Civil Engineering 0106 University of Illinois at Urbana-Champaign Thesis M.S. MS:Civil Engineering -UIUC 10KS0106MS