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Cyclic Testing and Assessment of Shape Memory Alloy Recentering Systems

2009 Earthquake engineering
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Release : 2009
Genre : Earthquake engineering
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Cyclic Testing and Assessment of Shape Memory Alloy Recentering Systems by : Matthew S. Speicher

Download or read book Cyclic Testing and Assessment of Shape Memory Alloy Recentering Systems written by Matthew S. Speicher. This book was released on 2009. Available in PDF, EPUB and Kindle. Book excerpt: 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 the structure after a loading event. Though few applications have made it into practice, the potential for widespread use has never been better due to improvements in material behavior and reductions in cost. In this research, three different SMA-based structural applications are developed and tested. The first is a tension/compression damper that utilizes nickel-titanium (NiTi) Belleville washers. The second is a partially restrained beam-column connection utilizing NiTi bars. The third is an articulated quadrilateral bracing system utilizing NiTi wire bundles in parallel with c-shape dampers. Each system was uniquely designed to allow a structure to undergo large drift demands and dissipate energy while retaining strength and recentering ability. This exploratory work highlights the potential for SMA-based structural applications to enhance seismic structural performance and community resilience.

Shape Memory Alloys for Seismic Resilience

2019-05-25 Technology & Engineering
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Release : 2019-05-25
Genre : Technology & Engineering
Kind : eBook
Book Rating : 400/5 ( reviews)

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Book Synopsis Shape Memory Alloys for Seismic Resilience by : Cheng Fang

Download or read book Shape Memory Alloys for Seismic Resilience written by Cheng Fang. This book was released on 2019-05-25. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the fundamental properties and practical applications of shape memory alloys (SMAs) from the perspective of seismic engineering. It objectively discusses the superiority of this novel class of materials, which could potentially overcome the limitations of conventional seismic control technologies. The results, vividly presented in the form of tables and figures, are demonstrated with rigorous experimental verifications, supplemented by comprehensive numerical and analytical investigations. The book allows readers to gain an in-depth understanding of the working mechanisms of various SMA-based structural devices and members, including beam-to-column connections, dampers, and braces, while also providing them with a broader vision of next-generation, performance-based seismic design for novel adaptive structural systems. Helping to bridge the gap between material science and structural engineering, it also sheds light on the potential of commercializing SMA products in the construction industry. The cutting-edge research highlighted here provides technical incentives for design professionals, contractors, and building officials to use high-performance and smart materials in structural design, helping them stay at the forefront of construction technology.

Shape Memory Alloy Actuators

2016-01-19 Technology & Engineering
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Release : 2016-01-19
Genre : Technology & Engineering
Kind : eBook
Book Rating : 445/5 ( reviews)

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Book Synopsis Shape Memory Alloy Actuators by : Mohammad H. Elahinia

Download or read book Shape Memory Alloy Actuators written by Mohammad H. Elahinia. This book was released on 2016-01-19. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a systematic approach to realizing NiTi shape memory alloy actuation, and is aimed at science and engineering students who would like to develop a better understanding of the behaviors of SMAs, and learn to design, simulate, control, and fabricate these actuators in a systematic approach. Several innovative biomedical applications of SMAs are discussed. These include orthopedic, rehabilitation, assistive, cardiovascular, and surgery devices and tools. To this end unique actuation mechanisms are discussed. These include antagonistic bi-stable shape memory-superelastic actuation, shape memory spring actuation, and multi axial tension-torsion actuation. These actuation mechanisms open new possibilities for creating adaptive structures and biomedical devices by using SMAs.

Shape Memory and Superelastic Alloys

2011-04-30 Technology & Engineering
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Release : 2011-04-30
Genre : Technology & Engineering
Kind : eBook
Book Rating : 626/5 ( reviews)

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Book Synopsis Shape Memory and Superelastic Alloys by : K Yamauchi

Download or read book Shape Memory and Superelastic Alloys written by K Yamauchi. This book was released on 2011-04-30. Available in PDF, EPUB and Kindle. Book excerpt: Shape memory and superelastic alloys possess properties not present in ordinary metals meaning that they can be used for a variety of applications. Shape memory and superelastic alloys: Applications and technologies explores these applications discussing their key features and commercial performance. Readers will gain invaluable information and insight into the current and potential future applications of shape memory alloys.Part one covers the properties and processing of shape memory effect and superelasticity in alloys for practical users with chapters covering the basic characteristics of Ti-Ni-based and Ti-Nb-based shape memory and superelastic (SM/SE) alloys, the development and commercialisation of TiNi and Cu-based alloys, industrial processing and device elements, design of SMA coil springs for actuators before a final overview on the development of SM and SE applications. Part two introduces SMA application technologies with chapters investigating SMAs in electrical applications, hot-water supply, construction and housing, automobiles and railways and aerospace engineering before looking at the properties, processing and applications of Ferrous (Fe)-based SMAs. Part three focuses on the applications of superelastic alloys and explores their functions in the medical, telecommunications, clothing, sports and leisure industries. The appendix briefly describes the history and activity of the Association of Shape Memory Alloys (ASMA).With its distinguished editors and team of expert contributors, Shape memory and superelastic alloys: Applications and technologies is be a valuable reference tool for metallurgists as well as for designers, engineers and students involved in one of the many industries in which shape memory effect and superelasticity are used such as construction, automotive, medical, aerospace, telecommunications, water/heating, clothing, sports and leisure. Explores important applications of shape memory and superelastic alloys discussing their key features and commercial performance Assesses the properties and processing of shape memory effect and superelasticity in alloys for practical users with chapters covering the basic characteristics Introduces SMA application technologies investigating SMAs in electrical applications, hot-water supply, construction and housing, automobiles and railways and aerospace engineering

Shape Memory Alloys

2014-05-04 Technology & Engineering
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Release : 2014-05-04
Genre : Technology & Engineering
Kind : eBook
Book Rating : 489/5 ( reviews)

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Book Synopsis Shape Memory Alloys by : M. Fremond

Download or read book Shape Memory Alloys written by M. Fremond. This book was released on 2014-05-04. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of two chapters. The first chapter deals with the thermomechanical macroscopic theory describing the transformation and deformation behavior of shape memory alloys. The second chapter deals with the extensive and fundamental review of the experimental works which include crystallography, transformations and mechanical characteristics in Ti-Ni, Cu-base and ferrous shape memory alloys.

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