Relevant bibliographies by topics / Shape memory effect / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Shape memory effect.

Dissertations / Theses on the topic 'Shape memory effect'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Shape memory effect.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Richardson, Tara Beth Auad Maria Lujan Schwartz Peter. "Nanoreinforced shape memory polyurethane." Auburn, Ala., 2009. http://hdl.handle.net/10415/1934.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Liang, Chen. "The constitutive modeling of shape memory alloys." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-08232007-113153/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jeong, Soon-Jong. "The effect of magnetic field on shape memory behavior in Heusler-type Ni₂MnGa-based compounds /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/10591.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dolog, Rostyslav. "Shape Memory Behavior of Ionomers and Their Compounds." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1386656054.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Jardine, A. P. "Shape memory effect thermodynamics and thermal efficiencies of NiTi." Thesis, University of Bristol, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381385.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Palanki, Zoltan. "Effect of the applied stress on shape memory alloys." Besançon, 2009. http://www.theses.fr/2009BESA2002.

Full text
Abstract:
Dans cette thèse, deux modèles ont été utilisés. Celui développé à Debrecen (Hongrie) a permis de calcul les termes d'énergie non-chimique au début et à la fin de transformation martensitique. Nonobstant, non seulement ces termes sont indispensables mais la connaissance de la dépendance des termes dissipatifs élastiques à la fraction de martensite transformée est, elle aussi, importante. En conclusion, une extension de modèle s'est avérée nécessaire. Ce nouveau modèle a été utilisé afin de rationaliser les mesures effectuée sur des alliages à mémoire de forme CuAINi poly et monocristallins. Le
APA, Harvard, Vancouver, ISO, and other styles
7

Shu, Yi-Chung Bhattacharya Kaushik. "Shape-memory effect in bulk and thin-film polycrystals /." Diss., Pasadena, Calif. : California Institute of Technology, 1999. http://resolver.caltech.edu/CaltechETD:etd-02212008-114547.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Adiguzel, O. "Phase Transition and Functional Characteristics of Shape Memory Alloys." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35059.

Full text
Abstract:
Shape-memory alloys are a new class of functional materials with a peculiar property known as shape memory effect. These alloys have an ability to recover a particular shape. The origin of this phenomenon lies in the fact that the material changes its internal crystalline structure with changing temperature. Copper based ternary alloys exhibit shape memory effect in metastable - phase field. These alloys undergo two ordered transitions on cooling, and bcc structures turn into B2(CsCl) or DO3(Fe3Al) -type ordered structures. The ordered structures martensitically undergo the non-convention
APA, Harvard, Vancouver, ISO, and other styles
9

Liang, Wuwei. "A Novel Shape Memory Behavior of Single-crystalline Metal Nanowires." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/13930.

Full text
Abstract:
This research focuses on the characterization of the structure and mechanical behavior of metal nanowires. Molecular dynamics simulations with embedded-atom method (EAM) potentials are used. A novel shape memory effect and pseudoelastic behavior of single-crystalline FCC metal (Cu, Ni, and Au) nanowires are discovered. Specifically, upon tensile loading and unloading, these wires can recover elongations of up to 50%, well beyond the recoverable strains of 5-8% typical for most bulk shape memory alloys. This novel behavior arises from a reversible lattice reorientation driven by the high surfac
APA, Harvard, Vancouver, ISO, and other styles
10

Young, Avery W. "A Study on NiTiSn Low-Temperature Shape Memory Alloys and the Processing of NiTiHf High-Temperature Shape Memory Alloys." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157642/.

Full text
Abstract:
Shape memory alloys (SMAs) operating as solid-state actuators pose economic and environmental benefits to the aerospace industry due to their lightweight, compact design, which provides potential for reducing fuel emissions and overall operating cost in aeronautical equipment. Despite wide applicability, the implementation of SMA technology into aerospace-related actuator applications is hindered by harsh environmental conditions, which necessitate extremely high or low transformation temperatures. The versatility of the NiTi-based SMA system shows potential for meeting these demanding materia
APA, Harvard, Vancouver, ISO, and other styles
11

Ariapour, Azita. "Effect of nitrogen on Fe-Mn-based shape memory alloys." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0002/NQ41396.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Wang, Jiong. "Analytical studies on the force-induced phase transitions in slender shape memory alloy cylinders layers /." access full-text access abstract and table of contents, 2009. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-ma-b23750546f.pdf.

Full text
Abstract:
Thesis (Ph.D.)--City University of Hong Kong, 2009.<br>"Submitted to Department of Mathematics in partial fulfillment of the requirements for the degree of Doctor of Philosophy." Includes bibliographical references (leaves [214]-224)
APA, Harvard, Vancouver, ISO, and other styles
13

Terzak, John Charles. "Modeling of Microvascular Shape Memory Composites." Youngstown State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1389719238.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Oliveira, João Pedro de Sousa. "Correlation between the mechanical cycling behavior and microstructure in laser welded joints using NiTi memory shape alloys." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8077.

Full text
Abstract:
Dissertação para obtenção do Grau de Mestre em Engenharia de Materiais<br>The demand of emerging joining techniques for shape memory alloys has become of great importance, as their functional properties, namely shape memory effect and superelasticity, present unique solutions for state-of-the-art applications. Literature shows that significant efforts have been conducted on laser welding of these alloys, although very limited results concerning mechanical properties are reported. In this study, the main objective was to correlate the microstructure of similar NiTi welds with its mechanical
APA, Harvard, Vancouver, ISO, and other styles
15

Elahinia, Mohammad. "Effect of System Dynamics on Shape Memory Alloy Behavior and Control." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11221.

Full text
Abstract:
While the existing thermomechanical constitutive models can predict the behavior of SMA-actuated systems in most cases, in this study, we have shown that there are certain situations in which these models are not able to predict the behavior of SMAs. To this end, a rotary SMA-actuated robotic arm is modeled using the existing constitutive models. The model is verified against the experimental results to document that under certain conditions, the model is not able to predict the behavior of the SMA-actuated manipulator. Such cases most often occur when the temperature and stress of the SMA wir
APA, Harvard, Vancouver, ISO, and other styles
16

Aydogmus, Tarik. "Processing And Characterization Of Porous Titanium Nickel Shape Memory Alloys." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612232/index.pdf.

Full text
Abstract:
Porous TiNi alloys (Ti-50.4 at. %Ni and Ti-50.6 at. %Ni) with porosities in the range 21%-81% were prepared successfully applying a new powder metallurgy fabrication route in which magnesium was used as space holder resulting in either single austenite phase or a mixture of austenite and martensite phases dictated by the composition of the starting prealloyed powders but entirely free from secondary brittle intermetallics, oxides, nitrides and carbonitrides. Magnesium vapor do not only prevents secondary phase formation and contamination but also provides higher temperature sintering opportuni
APA, Harvard, Vancouver, ISO, and other styles
17

Lim, Tzi-shing Jesse. "Degradation of Ni-Ti alloy in cyclic loading." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/16621.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Paine, Jeffrey Steven Nelson. "Multi-functional SMA hybrid composite materials and their applications /." This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-162936/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Wornyo, Edem. "Fabrication and characterization of shape memory polymers at small scales." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26714.

Full text
Abstract:
Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Gall, Ken; Committee Chair: May, Gary S; Committee Member: Brand, Oliver; Committee Member: Degertekin, F Levent; Committee Member: Milor, Linda S. Part of the SMARTech Electronic Thesis and Dissertation Collection.
APA, Harvard, Vancouver, ISO, and other styles
20

Adiguzel, O. "Martensitic Transition and the Role of Ordering in Copper Based Shape Memory Alloys." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35433.

Full text
Abstract:
Shape memory effect is a peculiar property exhibited by certain alloy system, and shape memory behavior is evaluated by the structural changes in microscopic scale. Shape-memory effect is based on martensitic transformation, which occurs on cooling from high-temperature parent phase region with the cooperative movements of atoms on {110}-type close-packet planes of parent austenite phase by means of shear-like mechanism. The material changes its internal crystalline structure with martensitic transition, and the ordered structure or super lattice structure is essential for the shape memor
APA, Harvard, Vancouver, ISO, and other styles
21

Kulkarni, Ajay V. "Effect of ausforming via severe plastic deformation on shape memory behavior of NiTi." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/3246.

Full text
Abstract:
In this study, Thermomechanical properties of Ti-50.8 and 50.7 at% Ni alloy severely deformed using Equal Channel Angular Extrusion (ECAE) are investigated. The aim of this study is to reveal the effects of severe plastic deformation on shape memory, pseudelasticity, interplay between plastic deformation via dislocation slip and twinning, and forward and reverse martensitic transformation. The samples are processed at room temperature, i.e. slightly above the austenite finish temperature, and at 450 °C, i.e. well-above the austenite finish temperature. Transformation temperatures, microstruct
APA, Harvard, Vancouver, ISO, and other styles
22

Rasmussen, Tor Lone. "Effect of Non-spherical Voids on the Mechanical Behavior of Shape Memory Alloys." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for konstruksjonsteknikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22634.

Full text
Abstract:
The use of shape memory alloys has seen a steady increase since its discovery.Understanding the mechanical behavior behind a ductile fracture of these materialsis important to further the applicability of shape memory alloys. Some researchon spherical microvoids in shape memory alloys has been conducted, but there isnot much literature on non-spherical voids.The effect of non-spherical microvoids on the mechanical behavior of shape memoryalloys has been explored in this thesis. By running numerical simulations inthe commercial finite element software Abaqus, several different void shapes andsi
APA, Harvard, Vancouver, ISO, and other styles
23

Yeduru, Srinivasa Reddy [Verfasser]. "Development of Microactuators Based on the Magnetic Shape Memory Effect / Srinivasa Reddy Yeduru." Karlsruhe : KIT Scientific Publishing, 2013. http://www.ksp.kit.edu.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Dye, Tracy Earl. "An experimental investigation of the behavior of Nitinol." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/45048.

Full text
Abstract:
Shape memory alloys (SMA) have the unique ability to recover large strains and generate large recovery stresses via a repeatable martensitic transformation. Stress-strain and shape memory effect characteristics are needed in order to develop SMA force actuator design methods. Moreover, constitutive models able to quantitatively predict these characteristics and thus be useful as engineering design tools are also needed. An experimental apparatus designed to characterize the mechanical behavior of SMA was built and utilized. The apparatus is used specifically to gather stress-strain and shape
APA, Harvard, Vancouver, ISO, and other styles
25

Safranski, David L. "Effect of chemical structure and crosslinking density on the thermo-mechanical properties and toughness of (meth)acrylate shape-memory polymer networks." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22635.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Dano, Marie-Laure. "SMA-induced deformations in unsymmetric cross-ply laminates." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-09122009-040504/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Li, Hao. "Study of the Tunable Shape Memory Effect of Amino Acid-based Poly(ester urea)s." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1491434744895974.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Daswa, Pfarelo. "The effect of ternary alloying on the shape memory properties of titanium-platinum alloys." Diss., University of Pretoria, 2020. http://hdl.handle.net/2263/79641.

Full text
Abstract:
Among many shape memory alloys, Ti-Pt alloys have potential as a high temperature shape memory alloy. The alloy undergoes a reversible martensitic transformation at temperatures above 1000 oC. However, the alloy’s negligible shape memory effect could limit its application. Solid solution strengthening has been suggested as an alternative to improve the shape memory properties of Ti-Pt. In this study, the effect of partially substituting either platinum (Pt) or titanium (Ti) with vanadium (V) on the shape memory properties of Ti-Pt was investigated in the as-cast and solution heat treated condi
APA, Harvard, Vancouver, ISO, and other styles
29

Kaya, Irfan. "SHAPE MEMORY BEHAVIOR OF SINGLE AND POLYCRYSTALLINE NICKEL RICH NICKEL TITANIUM ALLOYS." UKnowledge, 2014. http://uknowledge.uky.edu/me_etds/37.

Full text
Abstract:
NiTi is the most commonly used shape memory alloy (SMA) and has been widely used for bio-medical, electrical and mechanical applications. Nickel rich NiTi shape memory alloys are coming into prominence due to their distinct superelasticity and shape memory properties as compared to near equi-atomic NiTi shape memory alloys. Besides, their lower density and higher work output than steels makes these alloys an excellent candidate for aerospace and automotive industry. Shape memory properties and phase transformation behavior of high Ni-rich Ni54Ti46 (at.%) polycrystals and Ni-rich Ni51Ti49 (at.%
APA, Harvard, Vancouver, ISO, and other styles
30

Fizanne, Cécile. "Evaluation par nanoindentation des propriétés mécaniques locales d’alliages de titane superélastiques et à mémoire de forme." Thesis, Rennes, INSA, 2014. http://www.theses.fr/2014ISAR0005/document.

Full text
Abstract:
Le titane, comme ses alliages, présente des caractéristiques remarquables qui peuvent être modulées du fait des nombreuses microstructures qu’il est possible d’obtenir. Grâce à cette grande variété, le titane et ses alliages possèdent un grand nombre de propriétés. Parmi les plus intéressantes, on peut citer leur résistance à la corrosion, leur biocompatibilité, mais aussi leurs excellentes propriétés mécaniques (résistance, ductilité, ténacité, fluage…). Pour toutes ces raisons, l’attrait pour les alliages de titane n’a cessé de croître dans de nombreux secteurs. En effet ils sont maintenant
APA, Harvard, Vancouver, ISO, and other styles
31

Ying, Jia. "Structural Change and Its Assessment by Fluorescence Spectroscopy in Functional Polymers." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/192187.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

OTUBO, JORGE. "Desenvolvimento de ligas inoxidaveis com efeito de memoria de forma: elaboracao e caracterizacao." reponame:Repositório Institucional do IPEN, 1996. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10500.

Full text
Abstract:
Made available in DSpace on 2014-10-09T12:41:11Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:35Z (GMT). No. of bitstreams: 1 04051.pdf: 13566851 bytes, checksum: 00f45b4ba82c60e068d8fd10c9aba717 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Universidade Estadual de Campinas - UNICAMP/SP
APA, Harvard, Vancouver, ISO, and other styles
33

Spies, Ruben Daniel. "Mathematical modelling, finite dimensional approximations and sensitivity analysis for phase transitions in shape memory alloys." Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-06062008-165948/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

RATHOD, CHANDRASEN. "DIFFRACTION STUDIES OF DEFORMATION IN SHAPE MEMORY ALLOYS AND SELECTED ENGINEERING COMPONENTS." Doctoral diss., University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2892.

Full text
Abstract:
Deformation phenomena in shape memory alloys involve stress-, temperature-induced phase transformations and crystallographic variant conversion or reorientation, equivalent to a twinning operation. In near equiatomic NiTi, Ti rich compositions can exist near room temperature as a monoclinic B19' martensitic phase, which when deformed undergoes twinning resulting in strains as large as 8%. Upon heating, the martensite transforms to a cubic B2 austenitic phase, thereby recovering the strain and exhibiting the shape memory effect. Ni rich compositions on the other hand can exist near room tempera
APA, Harvard, Vancouver, ISO, and other styles
35

Heil, Todd M. "An Investigation of the Structural and Magnetic Transitions in Ni-Fe-Ga Ferromagnetic Shape Memory Alloys." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/30231.

Full text
Abstract:
The martensite and magnetic transformations in Ni-Fe-Ga ferromagnetic shape memory alloys are very sensitive to both alloy chemistry and thermal history. A series of Ni-Fe-Ga alloys near the prototype Heusler composition (X2YZ) were fabricated and homogenized at 1423 °K, and a Ni₅₃Fe₁₉Ga₂₈ alloy was subsequently annealed at various temperatures below and above the B2/L21 ordering temperature. Calorimetry and magnetometry were employed to measure the martensite transformation temperatures and Curie temperatures. Compositional variations of only a few atomic percent result in martensite start te
APA, Harvard, Vancouver, ISO, and other styles
36

Azadi, Borujeni Bijan. "Constitutive modeling and finite element analysis of the dynamic behavior of shape memory alloys." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/796.

Full text
Abstract:
Previous experimental observations have shown that the pseudoelastic response of NiTi shape memory alloys (SMA) is localized in nature and proceeds through nucleation and propagation of localized deformation bands. It has also been observed that the mechanical response of SMAs is strongly affected by loading rate and cyclic degradation. These behaviors significantly limit the accurate modeling of SMA elements used in various devices and applications. The aim of this work is to provide engineers with a constitutive model that can accurately describe the dynamic, unstable pseudoelastic response
APA, Harvard, Vancouver, ISO, and other styles
37

Binene, Musasa François. "Etude de l'influence du vieillissement en phase B sur la dégradation de l'effet mémoire de forme dans les alliages Cu-Al-Ni." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210080.

Full text
Abstract:
Les alliages Cu-Al-Ni sont les seuls à posséder une température de transformation allant jusque 200°C. Ceci leur confère un avantage par rapport aux alliages Cu-Al-Zn ou Ti-Ni dont les températures de transformation ne dépassent pas 100°C.<p><p>Néanmoins, un chauffage temporaire au dessus de 200°C peut provoquer une perte de l’effet mémoire des alliages Cu-Al-Ni.<p><p>Nous avons étudié trois alliages aves des teneurs en nickel comprises entre 3 % et 5 %.<p><p>L’objectif de notre étude est double :<p><p>• Étudier la cinétique des transformations structurales au cours d’un vieillissement en phas
APA, Harvard, Vancouver, ISO, and other styles
38

Mathai, George K. "Abrasive assisted brush deburring of micromilled features with application to a novel surgical device." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/47735.

Full text
Abstract:
Burrs severely inhibit the performance and aesthetics in machined parts besides posing a safety risk to the user and manufacturer. Abrasive assisted brushing presents a fast and effective method for deburring these parts but is difficult to control. The dependence of deburring rate on the workpiece material, abrasive grit size, type and rotational speed of the brush is studied. It is found that deburring rate is proportional to initial burr height indicating fracture of the burr at the root. Deburring rate increases with spindle speed and is higher for diamond than SiC. The formation of burrs
APA, Harvard, Vancouver, ISO, and other styles
39

Sargin, Irmak. "Effect Of Stress Assisted Aging On Superelastic Behavior Of A Hot-rolled Niti Shape Memory Alloy." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613184/index.pdf.

Full text
Abstract:
Effect of stress-assisted aging on stress induced martensitic transformation in hot-rolled Ni-rich 50.7at. Ni%-Ti alloy has been investigated. Alloys are aged freely and under 20 MPa, 100 MPa, and 200 MPa stress at 400 o C for 90 minutes. Aging procedure affected both stress-induced and thermally induced transformation behavior. Superelasticity behavior is correlated with the multistep transformation in aged Ni-rich NiTi alloys and the aging stress level is found to be effective. Relative to the free aged alloy, the alloy aged under 20 MPa exhibited a slight and the alloy aged under 100
APA, Harvard, Vancouver, ISO, and other styles
40

Yeduru, Srinivasa Reddy [Verfasser], and M. [Akademischer Betreuer] Kohl. "Development of Microactuators Based on the Magnetic Shape Memory Effect / Srinivasa Reddy Yeduru. Betreuer: M. Kohl." Karlsruhe : KIT-Bibliothek, 2013. http://d-nb.info/1042705143/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Shukla, Keerti. "The effect of annealing on the microstructure of Cu-Al-Ni-Mn shape memory alloy microwires." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100889.

Full text
Abstract:
Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 37-38).<br>Shape memory alloys exhibit superelasticity and the shape memory effect by undergoing a diffusionless phase transformation between the austenite and martensite phases. Nickel-titanium alloys are currently the most common material used. However, due to their expensive cost, alternatives such as Cu-based alloys have been investigated. Cu-based alloys have exhibited the shape memory effect and
APA, Harvard, Vancouver, ISO, and other styles
42

Addai, Boateng Anthony. "EFFECT OF GEOMETRY AND MATERIAL ON THE RESPONSE OF A SHAPE MEMORY ALLOY (SMA) EARTHQUAKE DAMPER." Cleveland State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=csu1610745015584522.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Achuthankutty, Ajith. "Deposition Kinetics of Titanium and Zirconium Diffusion Coatings on Nickel Microwires via Pack Cementation." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1592133155467387.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Andrawes, Bassem Onsi. "Seismic Response and Analysis of Multiple Frame Bridges Using Superelastic Shape Memory Alloys." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6914.

Full text
Abstract:
The feasibility of using superelastic shape memory alloys in the retrofit of multiple frame bridges is investigated. First, three shape memory alloy constitutive models with various levels of complexity are compared in order to determine the significance of including subloops and cyclic loading effects on the structural response. The results show that the structural response is more sensitive to the shape memory alloys strength degradation and residual deformation than the sublooping behavior. Next, two parametric studies are conducted to explore the sensitivity of hinge opening to the mech
APA, Harvard, Vancouver, ISO, and other styles
45

Sunday, Eugene Patrick. "Shape memory polymers : the wave of the future or a passing fad?" 2012. http://hdl.handle.net/2152/19972.

Full text
Abstract:
New materials always have the possibility of revolutionizing manufacturing processes and the way we live. Bronze, steel alloys, vulcanized rubber, ceramics, and fiber optic cables are just of few of the materials man has discovered which improved his quality of life. One of the more recent additions to the field of material science are materials that exhibit what is known as the shape memory effect. Both metals and synthetic polymers can acquire this property through processing and chemistry. However while shape memory polymers hold a lot of promise, it will require more research and devel
APA, Harvard, Vancouver, ISO, and other styles
46

Barrie, Fatmata Haja. "Effects of Constrained Aging on the Shape Memory Response of Nickel Rich Niti Shape Memory Alloys." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-12-7308.

Full text
Abstract:
Ni50.6Ti49.4 single and Ni52Ti48 polycrystalline shape memory alloy samples were subjected to aging under a uniaxial stress, to form a single Ni4Ti3 precipitate variant and to investigate the effects of single versus multi-variant coherent precipitates on the shape memory characteristics including two-way shape memory effect (TWSME). Shape memory and superelasticity properties along with the effects of stress and temperature on the transformation temperatures, strain, hysteresis, dimensional stability, and R-phase formation were investigated. This was accomplished through the use of isobaric
APA, Harvard, Vancouver, ISO, and other styles
47

Yen, Fu-Cheng, and 顏福成. "Sintering Behavior, Mechanical Properties, and Shape Memory Effect of Ti-rich TiNi Shape Memory Alloys." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/25132698737257975347.

Full text
Abstract:
博士<br>國立臺灣大學<br>材料科學與工程學研究所<br>100<br>This study demonstrates that a high density and a high transformation heat (ΔH) can be obtained for powder metallurgy TiNi shape memory alloys (SMAs). With the use of fine elemental powders, a composition of Ti51Ni49, two-step heating, and persistent liquid phase sintering at 1280oC, a 95.3% sintered density is attained for compacts with a green density of 66%. A transformation heat of 31.9J/g is also achieved, which is much higher than that reported previously for sintered TiNi and is approaching the highest ΔH reported to date, 35J/g, for wrought TiNi wi
APA, Harvard, Vancouver, ISO, and other styles
48

Hsu, Hau-Chi, and 徐豪志. "Study on Shape Memory Effect in Thermomechanical V-Bending of Ni-Ti Shape Memory Alloy Wire." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/17659432966834692149.

Full text
Abstract:
碩士<br>國立中興大學<br>機械工程學系所<br>101<br>The aim of this study is that shape memory treatment and V-bending process for nickel-titanium alloy wire are able to be accomplished within one thermomechanical process at high temperature. This method could provide an alternative choice for the nickel-titanium shape memory alloy wire to reduce the spring-back in V-bending process due to the creep effect. In this study, the influences of forming temperatures and process time on spring-back were studied. Furthermore, experiment was carried out to verify with the finite element analysis results. The material mo
APA, Harvard, Vancouver, ISO, and other styles
49

Liu, Hsin-Chih, and 劉信志. "Crosslinked Side-chain Polyurethane with Shape-memory Effect." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/76q8jw.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>100<br>A hydroxyl group-containing [3-(4-(4-(3,3-dimethyl-2,4- dioxoazetidin-1-yl)benzyl)phenyl)-1,1-bis(2-hydroxyethyl)urea] with reactive azetidine-2,4-dione group was prepared and introduced into polyurethane backbone. The polyurethanes with reactive pendent azetidine-2,4-dione groups were further crosslinked by short-chain aliphatic diamine or modified by silane coupling agent (3-aminopropyltriethoxysilane; APS) following by a sol-gel reaction to bring about Si–O–Si crosslinked organic/inorganic hybrid polyurethanes with shape memory function. X-ray diffraction
APA, Harvard, Vancouver, ISO, and other styles
50

Huang, Pao-Min, and 黃寶民. "Study on Shape Memory Effect in Aging of Ni-Ti Shape Memory Alloy Wire Bent in V-Shape at Room Temperature." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/32294348955127934462.

Full text
Abstract:
碩士<br>國立中興大學<br>機械工程學系所<br>102<br>In this study, Ni-rich Ni-Ti shape-memory alloys (SMAs) were formed at room temperature to reduce the use of expensive dies during the thermomechanical forming and constraint aging process in order to maximize the economic benefits. After undergoing solution treatments at various temperatures, SMA wires were formed at room temperature into different curvatures. Subsequently, the SMA wires were subjected to aging treatments at different temperatures. The springback of SMA wires was examined after forming and after aging. A reverse bending tests were used to exp
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Shape memory effect' for other source types:
Journal articles Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography