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Dissertations / Theses on the topic 'Shape Memory Alloy Spring'

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Published: 4 June 2021
Last updated: 11 February 2022

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1

Stebner, Aaron P. "Development, Characterization, and Application of Ni19.5Ti50.5Pd25Pt5 High-Temperature Shape Memory Alloy Helical Actuators." Akron, OH : University of Akron, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1194994008.

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Thesis (M.S.)--University of Akron, Dept. of Mechanical Engineering, 2007.<br>"December, 2007." Title from electronic thesis title page (viewed 02/22/2008) Advisor, D. Dane Quinn; Co-Advisor, Graham Kelly; Department Chair, Celal Batur; Dean of the College, George K. Haritos; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
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2

Hegana, Ashenafi B. "Low Temperature Waste Energy Harvesting by Shape Memory Alloy Actuator." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1461631046.

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3

Williams, Eric Andrew. "The Development of Actuators for the Whole Skin Locomotion Robot." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/46786.

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The Whole Skin Locomotion robot propels itself using a motion similar to the cytoplasmic streaming exhibited by an amoeba. In the robot there are embedded ring actuators which evert the material of the robot to produce forward motion. The robot benefits from a highly flexible exterior allowing it to squeeze into constricted passageways or collapsed structures. The development of actuators for such a motion is performed by a shape memory alloy composite actuator. Unlike a typical composite model which utilizes a homogenization of fiber and matrix properties our model is developed for line loads
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4

Krishnan, Vinu Bala. "DESIGN, FABRICATION AND TESTING OF A SHAPE MEMORY ALLOY BASED CRYOGENIC THERMAL CONDUCTION SWITCH." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4404.

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Shape memory alloys (SMAs) can recover large strains (e.g., up to 8%) by undergoing a temperature-induced phase transformation. This strain recovery can occur against large forces, resulting in their use as actuators. The SMA elements in such actuators integrate both sensory and actuation functions. This is possible because SMAs can inherently sense a change in temperature and actuate by undergoing a shape change, associated with the temperature-induced phase transformation. The objective of this work is to develop an SMA based cryogenic thermal conduction switch for operation between dewars o
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5

Gradin, Henrik. "Heterogeneous Integration of Shape Memory Alloysfor High-Performance Microvalves." Doctoral thesis, KTH, Mikrosystemteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-94088.

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This thesis presents methods for fabricating MicroElectroMechanical System (MEMS) actuators and high-flow gas microvalves using wafer-level integration of Shape Memory Alloys (SMAs) in the form of wires and sheets. The work output per volume of SMA actuators exceeds that of other microactuation mechanisms, such as electrostatic, magnetic and piezoelectric actuation, by more than an order of magnitude, making SMA actuators highly promising for applications requiring high forces and large displacements. The use of SMAs in MEMS has so far been limited, partially due to a lack of cost efficient an
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6

SANTIAGO, José Joelson de Melo. "Comportamento térmico e mecânico de molas helicoidais de liga com memória de forma Ni-Ti obtidas por fundição de precisão." Universidade Federal de Campina Grande, 2018. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1921.

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Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-10-09T13:19:28Z No. of bitstreams: 1 JOSÉ JOELSON DE MELO SANTIAGO - DISSERTAÇÃO (PPGEM) 2018.pdf: 5893476 bytes, checksum: 9fec0f8b27ff639270bebb4444b2285c (MD5)<br>Made available in DSpace on 2018-10-09T13:19:28Z (GMT). No. of bitstreams: 1 JOSÉ JOELSON DE MELO SANTIAGO - DISSERTAÇÃO (PPGEM) 2018.pdf: 5893476 bytes, checksum: 9fec0f8b27ff639270bebb4444b2285c (MD5) Previous issue date: 2018-08-30<br>Em muitas situações de projeto em sistemas mecânicos deseja-se rigidez e ao mesmo tempo uma certa flexibilidade. Nesses casos, as m
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7

Lafontaine, Serge R. "Fast shape memory alloy actuators." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34990.

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In this thesis techniques for fabricating fast contracting and relaxing shape memory alloy (SMA) fibers are presented. Shape memory alloy fibers have demonstrated the largest stress and highest power to mass ratio of any known actuator technology. However their practical application has been plagued by three major drawbacks, namely: (1) relatively slow expansion of the material despite rapid contraction; (2) problems of mechanically and electrically connecting to the material due to the violent nature of their contractions; and (3) low efficiency in the conversion of electrical energy or heat
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8

Lafontaine, Serge R. "Fast shape memory alloy actuators." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0004/NQ44482.pdf.

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9

Prothero, Lori Michelle Gross Robert Steven. "Shape memory alloy robotic truss." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SUMMER/Aerospace_Engineering/Thesis/Prothero_Lori_16.pdf.

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10

Silva, Rafael de Oliveira [UNESP]. "Atenuação de vibrações em sistemas que utilizam molas de liga de memória de forma." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150444.

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Submitted by RAFAEL DE OLIVEIRA SILVA null (rafa_engemec@hotmail.com) on 2017-04-24T14:27:25Z No. of bitstreams: 1 dissertacao_final.pdf: 3521819 bytes, checksum: b08a60dcaa91691a2bf36a0cc59992e6 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-04-26T13:27:52Z (GMT) No. of bitstreams: 1 silva_ro_me_ilha.pdf: 3521819 bytes, checksum: b08a60dcaa91691a2bf36a0cc59992e6 (MD5)<br>Made available in DSpace on 2017-04-26T13:27:52Z (GMT). No. of bitstreams: 1 silva_ro_me_ilha.pdf: 3521819 bytes, checksum: b08a60dcaa91691a2bf36a0cc59992e6 (MD5) Previous issu
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Silva, Rafael de Oliveira. "Atenuação de vibrações em sistemas que utilizam molas de liga de memória de forma /." Ilha Solteira, 2017. http://hdl.handle.net/11449/150444.

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Orientador: Gustavo Luiz Chagas Manhães de Abreu<br>Resumo: Diversos estudos relacionados à atenuação de vibrações utilizando materiais inteligentes vem sendo amplamente explorados no meio acadêmico. Neste âmbito, as Ligas de Memória de Forma (LMF) se destacam por apresentarem dissipação de energia vibratória devido ao seu comportamento histerético promovido pelo efeito pseudoelástico. No presente trabalho, dois sistemas com um e dois graus de liberdade, contendo mola helicoidal de LMF como elemento resiliente, são implementados numericamente para demonstrar a atenuação de vibrações ocasionada
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12

Santiago, Anadón José R. "Large force shape memory alloy linear actuator." [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE1001179.

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13

Prince, A. G. "Refrigeration effects in shape memory alloy systems." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.425093.

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14

Yoshikawa, Shuji. "Global solutions for shape memory alloy systems /." Sendai : Tohoku Univ, 2007. http://www.gbv.de/dms/goettingen/538059052.pdf.

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15

Orvis, Skye M. "Prestressing Concrete with Shape Memory Alloy Fibers." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/120.

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Concrete is considerably stronger in compression than it is in tension. When cracks form in concrete members, the flexural stiffness of the member decreases and the deflection increases which increases the overall size of the member. Prestressing concrete remedies this problem by inducing a compressive stress in the concrete thereby reducing the net tension in the member and increasing the load required to crack the member. Traditional prestressing is generally limited to large, straight members. During the last decade, shape memory alloys (SMA) have become more prevalent in engineering and ci
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16

Walls-Bruck, Marcus. "Shape adaptive self-fixing structures using shape memory alloy actuation." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.556738.

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Shape changing or morphing structures enable optimisation of structural configuration to suit current operating conditions. Conventional techniques for achieving shape change often result in weight and complexity penalties, which may outweigh the potential benefits of greater shape changing ability. The research presented in this thesis focuses on the use of shape memory materials to achieve a reversible change in shape of an innovative compliant composite structure, which may enable shape change without the drawbacks of conventional shape changing techniques. An initial concept was evaluated
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17

Miazaki, Marcio. "Controle de vibrações em rotores flexíveis utilizando molas helicoidais de liga com memória de forma." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/152328.

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Submitted by Marcio Miazaki null (mmiazaki@gmail.com) on 2017-12-12T15:38:22Z No. of bitstreams: 1 Dissertacao.pdf: 2498214 bytes, checksum: bbe1b8f57d985978dca7748b50feb796 (MD5)<br>Submitted by Marcio Miazaki null (mmiazaki@gmail.com) on 2017-12-14T11:25:02Z No. of bitstreams: 1 Dissertacao.pdf: 2498214 bytes, checksum: bbe1b8f57d985978dca7748b50feb796 (MD5)<br>Submitted by Marcio Miazaki null (mmiazaki@gmail.com) on 2017-12-14T13:50:31Z No. of bitstreams: 1 Dissertacao.pdf: 2498214 bytes, checksum: bbe1b8f57d985978dca7748b50feb796 (MD5)<br>Approved for entry into archive by Cristina A
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EMILIAVACA, Angelo. "SMArt MORPHING WING: um protótipo de asa adaptativa acionada por micromolas de liga com memória de forma." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/516.

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Submitted by Kilvya Braga (kilvyabraga@hotmail.com) on 2018-04-27T13:03:39Z No. of bitstreams: 1 ANGELO EMILIAVACA - DISSERTAÇÃO (PPGEM) 2016.pdf: 5881090 bytes, checksum: 6d09fd532b88ebec2b8684dfb0e6455f (MD5)<br>Made available in DSpace on 2018-04-27T13:03:39Z (GMT). No. of bitstreams: 1 ANGELO EMILIAVACA - DISSERTAÇÃO (PPGEM) 2016.pdf: 5881090 bytes, checksum: 6d09fd532b88ebec2b8684dfb0e6455f (MD5) Previous issue date: 2016-02-04<br>CNPq<br>O desenvolvimento da indústria aeronáutica tem provocado alterações significativas nos conceitos atualmente aplicados em aeronaves, sejam elas par
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19

Machado, Luciano G. "Shape memory alloy for vibration isolation and damping." Texas A&M University, 2007. http://hdl.handle.net/1969.1/85772.

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This work investigates the use of shape memory alloys (SMAs) for vibration isolation and damping of mechanical systems. The first part of this work evaluates the nonlinear dynamics of a passive vibration isolation and damping (PVID) device through numerical simulations and experimental correlations. The device, a mass connected to a frame through two SMA wires, is subjected to a series of continuous acceleration functions in the form of a sine sweep. Frequency responses and transmissibility of the device as well as temperature variations of the SMA wires are analyzed for the case where the SMA
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20

Fung, Cheung Kwan. "Thermal mechanical behaviour of NiTi shape memory alloy." access abstract and table of contents access full-text, 2004. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?msc-ap-b21174076a.pdf.

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Thesis (M.Sc.)--City University of Hong Kong, 2004.<br>At head of title: City University of Hong Kong, Department of Physics and Materials Science, Master of Science in materials engineering & nanotechnology dissertation. Title from title screen (viewed on Aug. 31, 2006) Includes bibliographical references.
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21

Zhao, Peng. "Magnetoelastic coupling in NiMnGa ferromagnetic shape memory alloy." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/4129.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Material Science and Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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22

Buban, Darrick Matthew. "Shape Memory Alloy Fracture as a Deployment Actuator." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/283604.

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Many applications require deployable structures to meet operational objectives such as satellites that unfurl antenna arrays. Typically, most deployment efforts involve the use of explosive and non-explosive actuators (EAs and NEAs respectively) that have implementation drawbacks such as the expense associated with special handling and the bulk encountered with mounting the devices. To mitigate EA and NEA drawbacks, the integration of shape memory alloys (SMA) as a deployment actuator was investigated. SMA specimens were heated and pulled to failure developing an environmental and structural o
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23

Leong, Siu Loong. "Using shape memory alloy as dampers : design methodology." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33693.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2005.<br>Includes bibliographical references (p. 141-143).<br>Many shape memory alloy (SMA) material models have been proposed in the literature, but most are suited only to forward analysis and not to design. This project proposes a generalized friction element, the lambda box, to model the stress-strain curve of SMA during pseudoelasticity. Simulation is carried out to study the dynamic response of such a system under harmonic loading. Three kinds of systems were examined, in order of increasi
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24

Daverman, R. Dodge (Robert Dodge). "A novel binary actuator using shape memory alloy." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32363.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.<br>Includes bibliographical references (p. 95-96).<br>In situations that demand the use of the high-bandwidth, high-quality sense of vision for interactions with the physical world it would be beneficial to have a wearable tactile display that takes advantage of touch to communicate information to the user without causing visual distractions. This thesis presents the design and development of a novel actuator that can be configured into thin, flexible arrays to meet this need for wearable tactile displ
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25

Turner, Travis Lee. "Thermomechanical Response of Shape Memory Alloy Hybrid Composites." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/29771.

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This study examines the use of embedded shape memory alloy (SMA)actuators for adaptive control of the themomechanical response of composite structures. Control of static and dynamic responses are demonstrated including thermal buckling, thermal post-buckling, vibration, sonic fatigue, and acoustic transmission. A thermomechanical model is presented for analyzing such shape memory alloy hybrid composite (SMAHC) structures exposed to thermal and mechanical loads. Also presented are (1) fabrication procedures for SMAHC specimens, (2) characterization of the constituent materials for model quan
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26

Wakjira, Jillcha Fekadu. "The VT1 Shape Memory Alloy Heat Engine Design." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/31196.

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The invention of shape memory alloys spurred a period of intense interest in the area of heat engines in the late 70's and early 80's. It was believed that these engines could use heat from low temperature sources such as solar heated water, geothermal hot water and rejected heat from conventional engines as a significant source of power. The interest has since dwindled, largely because small prototype devices developed in the laboratory could not be scaled up to produce significant power. It is believed that the scaled-up designs failed because they were dependent on friction as the drivi
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27

Soares, Alcimar Barbosa. "Shape memory alloy actuators for upper limb prostheses." Thesis, University of Edinburgh, 1997. http://hdl.handle.net/1842/21541.

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Despite the technological advances of the twentieth century, we are not yet able to produce artificial limbs which "mimic" perfectly their natural counterparts. In general, artificial limbs are not as dextrous as human limbs, the control is unnatural and there is no proper feedback by which the user can assess the status of the prosthesis. In this thesis the problems related to upper-limb prostheses are considered. The use of a special material known as Shape Memory Alloy (SMA) is investigated towards producing improved joint actuators for small artificial prostheses such as those required by
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28

Karjalainen, T. (Teemu). "Nitinol shape memory alloy in flexor tendon repair." Doctoral thesis, Oulun yliopisto, 2012. http://urn.fi/urn:isbn:9789514299803.

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Abstract Early motion is crucial for tendon healing and functional results after flexor tendon repair in the fingers. Motion, however, causes stress in the repair site, which can result in failure of the repair. A flexor tendon repair is made with fine calibre sutures, which sets exceptional requirements for the suture materials used in flexor tendon repair. Nitinol (nickel-titanium alloy) is a shape memory alloy, which can exist in two temperature-dependent forms, soft martensite and stiff austenite. It is possible to fabricate a nitinol wire that is soft and pliable, yet has high tensile str
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29

Toews, Leslie Marilyn. "The Development of a Monolithic Shape Memory Alloy Actuator." Thesis, University of Waterloo, 2004. http://hdl.handle.net/10012/871.

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Shape memory alloys (SMAs) provide exciting opportunities for miniature actuation systems. As SMA actuators are scaled down in size, cooling increases and bandwidth, improves. However, the inclusion of a bias element with which to cycle the SMA actuator becomes difficult at very small scales. One technique used to avoid the necessity of having to include a separate bias element is the use of local annealing to fabricate a monolithic device out of nickel titanium (NiTi). The actuator geometry is machined out of a single piece of non-annealed NiTi. After locally annealing a por
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Andolfato, Luca. "Shape Memory Alloy components: energy-consistent modelling and testing." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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The thesis aims to develop a novel control-oriented model for a Shape Memory Alloy (SMA) actuator and subsequently validate it through experimental tests. The main idea is to exploit energy balancing and exchange, along with proper constitutive equations, to represent SMA dynamical behavior. A SMA wire has been considered as a benchmark. The proposed approach returns equations with macroscopically reconstructable variables, embodying the hidden material’s internal phase state. This has allowed the development of simple test methodologies to characterize the several parameters. Moreover, it is
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31

Grant, Danny. "Accurate and rapid control of shape memory alloy actuators." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0020/NQ55336.pdf.

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32

Allam, Hussein Mohammed. "Development of novel tactile displays using shape memory alloy." Thesis, University of Newcastle Upon Tyne, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417498.

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33

Disko, Jeffry. "In search of martensite : titanium-tantalum shape-memory alloy." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/112500.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 47-48).<br>There is a broad range of life-saving medical implants and devices that rely on the shape-memory (SME) and superelastic properties of various nickel-based alloys [8]. Unfortunately, there is also serious concern about the toxicity of nickel. Titanium based shape-memory alloys have been noted as potentially non-toxic replacements of the more traditional, nickel-based shape memory alloys. In t
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Lederlé, Stéphane 1978. "Issues in the design of shape memory alloy actuators." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/16830.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.<br>"June 2002."<br>Includes bibliographical references (p. 93-96).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>This thesis considers the application of shape memory alloy (SMA) actuators for shape control of the undertray of a sports car. By deforming the shape of the structure that provides aerodynamic stability to the car, we expect to improve the overall performance of the vehicle by ad
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Chun, Katherine S. (Katherine Shisuka). "Shape memory alloy rotary actuator for CubeSat deployable structures." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127066.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 77-82).<br>Small satellites have lowered the barrier to entry for space-bound science and technology demonstrations. However, the small form factor requires extremely low size, weight, and power for any on-board hardware. Precision actuation of deployable structures has previously been achievable only through low SWaP single-use actuators or motor-driven, high SWaP multiple-use actuators. The Folde
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Tabesh, Majid. "Finite Element Analysis of Shape Memory Alloy Biomedical Devices." University of Toledo / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1271800551.

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Suraneni, Sanhita. "Microwave Assisted Reactive Sintering of TiNi Shape Memory Alloy." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1321628786.

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38

Ryhänen, J. (Jorma). "Biocompatibility evaluation of nickel-titanium shape memory metal alloy." Doctoral thesis, Oulun yliopisto, 1999. http://urn.fi/urn:isbn:9514252217.

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Abstract The shape memory effect, superelasticity, and good damping properties, uncommon in other implant alloys, make the nickel-titanium shape memory metal alloy (Nitinol or NiTi) a fascinating material for surgical applications. It provides a possibility to make self-locking, self-expanding and self-compressing implants. The purpose of this work was to determine if NiTi is a safe material for surgical implant applications. The primary cytotoxicity and the corrosion rate of NiTi were assessed in human osteoblast and fibroblast cell cultures. Comparisons were made with 316 LVM stainless stee
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Simon, Anish Abraham. "Shape memory response and microstructural evolution of a severe plastically deformed high temperature shape memory alloy (NiTiHf)." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/3139.

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NiTiHf alloys have attracted considerable attention as potential high temperature Shape Memory Alloy (SMA) but the instability in transformation temperatures and significant irrecoverable strain during thermal cycling under constant stress remains a major concern. The main reason for irrecoverable strain and change in transformation temperatures as a function of thermal cycling can be attributed to dislocation formation due to relatively large volume change during transformation from austenite to martensite. The formation of dislocations decreases the elastic stored energy, and during back tra
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Giles, Adam R. "Deflection and shape change of smart composite laminates using shape memory alloy actuators." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/7698.

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Shape memory materials have been known for many years to possess the unique ability of memorising their shape at some temperature. If these materials are pre-strained into the plastic range, they tend to recover their original un-strained shapes via phase transformation when subjected to heat stimulation. In recent years, this shape memory effect (SME) or strain recovery capability has been explored in aerospace structures for actuating the real-time movement of structural components. Among all the shape memory materials, the nickel-titanium based shape memory alloy (SMA) has by far received t
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Brewer, Andrew Lee. "Shape memory response of ni2mnga and nimncoin magnetic shape memory alloys under compression." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1341.

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42

Lin, Brian E. "Stucture and thermomechanical behavior of nitipt shape memory alloy wires." Thesis, Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28233.

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The objective of this work is to understand the structure-property relationships in a pseudoelastic composition of polycrystalline NiTiPt (Ti-42.7 at% Ni-7.5 at% Pt). Structural characterization of the alloy includes grain size determination and texture analysis while the thermo-mechanical properties are explored using tensile testing. Variation in heat treatment is used as a vehicle to modify microstructure. The results are compared to experiments on Ni-rich NiTi alloy wires (Ti-51.0 at% Ni), which are in commercial use in various biomedical applications. With regards to microstructure, bo
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Speicher, Matthew S. "Cyclic testing and assessment of shape memory alloy recentering systems." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33834.

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In an effort to mitigate damage caused by earthquakes to the built environment, civil engineers have been commissioned to research, design, and build increasingly robust and resilient structural systems. Innovative means to accomplish this task have emerged, such as integrating Shape Memory Alloys (SMAs) into structural systems. SMAs are a unique class of materials that have the ability to spontaneously recover strain of up to 8%. With proper placement in a structural system, SMAs can act as superelastic "structural fuses", absorbing large deformations, dissipating energy, and recentering t
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44

Soylemez, Burcu. "Design And Analysis Of A Linear Shape Memory Alloy Actuator." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610340/index.pdf.

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Shape memory alloys are new, functional materials used in actuator applications with their high power to weight ratio. The high strength or displacement usage of shape memory alloys makes them suitable for direct drive applications, which eliminate use of power transmission elements. The aim of this research is to develop the methodology and the necessary tools to design and produce linear shape memory alloy actuators to be used in missile systems, space applications, and test equipments. In this study, the test apparatus designed and built to characterize shape memory alloy thin wires is des
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Feng, Ping. "Deformation instability and morphology in shape memory alloy under stress /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?MECH%202005%20FENG.

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Becker, Marcus Patrick. "Thermomechanical training and characterization of shape memory alloy axial actuators." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/becker/BeckerM0510.pdf.

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Although considerable work has been performed to understand the key mechanisms of Shape Memory Alloy (SMA) behavior, little of this work follows a standard testing protocol, quantifies a conditioning methodology, or develops data appropriate for design of SMA actuators. One major issue that limits the ability of the material from being used directly as an actuator is the large, non-recoverable strains likely to accrue in the material during each training cycle, mechanical or thermal. When mechanical or thermal cycling is performed, a hysteresis curve develops and reaches a steady state strain
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Anders, William S. "Structural acoustic analysis of shape memory alloy hybrid composite panels." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-11012008-063243/.

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Cole, Daniel Paul. "Fabrication and characterization of compositionally-graded shape memory alloy films." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9097.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2009.<br>Thesis research directed by: Dept. of Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Liang, Yuanchang. "Design principle of actuators based on ferromagnetic shape memory alloy /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/7072.

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Christ, Daniel. "Thermomechanical modelling of shape memory alloy structures in medical applications." Aachen Shaker, 2008. http://d-nb.info/994223854/04.

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