F2005-05 Standard Terminology for Nickel-titanium Shape Memory Alloys PDF Download

Author: ASTM International
Publisher:
ISBN:
Category :
Languages : en
Pages : 4

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Author: Antonio Concilio
Publisher: Butterworth-Heinemann
ISBN: 0128192674
Category : Technology & Engineering
Languages : en
Pages : 936

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Book Description
Shape Memory Alloy Engineering: For Aerospace, Structural and Biomedical Applications, Second Edition embraces new advancements in materials, systems and applications introduced since the first edition. Readers will gain an understanding of the intrinsic properties of SMAs and their characteristic state diagrams. Sections address modeling and design process aspects, explore recent applications, and discuss research activities aimed at making new devices for innovative implementations. The book discusses both the potential of these fascinating materials, their limitations in everyday life, and tactics on how to overcome some limitations in order to achieve proper design of useful SMA mechanisms. - Provides a greatly expanded scope, looking at new applications of SMA devices and current research activities - Covers all aspects of SMA technology - from a global state-of-the-art survey, to the classification of existing materials, basic material design, material manufacture, and from device engineering design to implementation within actual systems - Presents the material within a modular architecture over different topics, from material conception to practical engineering realization

Author: Brian A. Berg
Publisher: ASM International
ISBN: 1615031200
Category : Technology & Engineering
Languages : en
Pages : 815

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Author: Ajit Behera
Publisher: CRC Press
ISBN: 1003848346
Category : Technology & Engineering
Languages : en
Pages : 641

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Surface engineering provides one of the most important means of engineering product differentiation in terms of quality, performance, and lifecycle cost. It is essential to achieve predetermined functional properties of materials such as mechanical strength, biocompatibility, corrosion resistance, wear resistance, and heat and oxidation resistance. Surface Engineering of Biomaterials addresses this topic across a diverse range of process technologies and healthcare applications. Introduces biomaterial surface science and surface engineering and includes criteria for biomaterial surface selection Focuses on a broad array of materials including metals, ceramics, polymers, alloys, and composites Discusses corrosion, degradation, and material release issues in implant materials Covers various processing routes to develop biomaterial surfaces, including for smart and energy applications Details techniques for post-modification of biomaterial surfaces This reference work helps researchers working at the intersection of materials science and biotechnology to engineer functional biomaterials for a variety of applications.

Author: Mel Schwartz
Publisher: CRC Press
ISBN: 1420043730
Category : Technology & Engineering
Languages : en
Pages : 556

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Explores State-of-the-Art Work from the World's Foremost Scientists, Engineers, Educators, and Practitioners in the FieldWhy use smart materials?Since most smart materials do not add mass, engineers can endow structures with built-in responses to a myriad of contingencies. In their various forms, these materials can adapt to their environments by c

Author: Dimitris C. Lagoudas
Publisher: Springer Science & Business Media
ISBN: 0387476857
Category : Technology & Engineering
Languages : en
Pages : 446

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Book Description
This book provides a working knowledge of the modeling and engineering applications of shape memory alloys (SMAs), beginning with a rigorous introduction to continuum mechanics and continuum thermodynamics as they relate to the development of SMA modeling.Modern SMAs can recover from large amounts of bending and deformation, and millions of repetitions within recoverable ranges. SMAs are used in the medical industry to create stents, in the dental industry to create dental and orthodontic archwires, and in the aerospace industry to create fluid fittings. The text presents a unified approach to the constitutive modeling of SMAs, including modeling of magnetic and high temperature SMAs.

Author: Amit Bandyopadhyay
Publisher: Newnes
ISBN: 0124158633
Category : Technology & Engineering
Languages : en
Pages : 451

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One of the key challenges current biomaterials researchers face is identifying which of the dizzying number of highly specialized characterization tools can be gainfully applied to different materials and biomedical devices. Since this diverse marketplace of tools and techniques can be used for numerous applications, choosing the proper characterization tool is highly important, saving both time and resources.Characterization of Biomaterials is a detailed and multidisciplinary discussion of the physical, chemical, mechanical, surface, in vitro and in vivo characterization tools and techniques of increasing importance to fundamental biomaterials research.Characterization of Biomaterials will serve as a comprehensive resource for biomaterials researchers requiring detailed information on physical, chemical, mechanical, surface, and in vitro or in vivo characterization. The book is designed for materials scientists, bioengineers, biologists, clinicians and biomedical device researchers seeking input on planning on how to test their novel materials, structures or biomedical devices to a specific application. Chapters are developed considering the need for industrial researchers as well as academics. - Biomaterials researchers come from a wide variety of disciplines: this book will help them to analyze their materials and devices taking advantage of the multiple experiences on offer - Coverage encompasses a cross-section of the physical sciences, biological sciences, engineering and applied sciences characterization community, providing gainful and cross-cutting insight into this highly multi-disciplinary field - Detailed coverage of important test protocols presents specific examples and standards for applied characterization

Author:
Publisher:
ISBN:
Category : Delegated legislation
Languages : en
Pages : 426

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Author: Ming H. Wu
Publisher: Elsevier Inc. Chapters
ISBN: 0128071052
Category : Science
Languages : en
Pages : 44

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The cardiovascular system consists of the heart and the vasculature. The physiology of the system is to circulate blood through the vasculature ensuring delivery of oxygen and vital nutrients to cells and organs in the body. Consequences of diseases disrupting normal cardiovascular function can be severe or fatal. Recent advancements in cardiovascular medicine have contributed significantly to improving life span and quality for patients by restoring normal cardiovascular function through the use of implantable devices. Examples of these cardiovascular implantable devices include endovascular stents, embolic protection devices and filters, closure devices, heart valve prostheses, cardiac rhythm management devices, such as pacemakers and defibrillators, and left ventricular assist devices. The main objective of this chapter is to provide an overview of device test methods commonly used in the development process from concept to commercialization of implantable cardiovascular devices. It is recognized that general device testing methodology and understanding for developing these cardiovascular devices can be extended to other devices as well as new product concepts under development. Developments of new medical devices are closely regulated by regulatory agencies. U.S. and international regulatory requirements for medical devices and drugs provide specific guidance for bench-top in vitro testing, in vivo animal study, clinical research, manufacturing, sterilization, and post-market surveillance for various device categories. Implantable cardiovascular devices generally fall within the Class II and Class III categories. Commercialization of these products in the United States requires FDA's Premarket Notifications (510Ks), Premarket Approvals (PMAs), or Exemptions. The design control element in the new product development procedure requires detailed documentation of design inputs and outputs as well as rational design verification through testing to ensure device functions and safety. Notably, implantable cardiovascular devices are subjected to very high safety expectation. The inability to perform periodic inspection and repair after device implantation also means that the statistical reliability and safety for these devices must be well established and verified prior to clinical uses. To facilitate discussions, a brief overview of the cardiovascular anatomy and physiology is provided in the beginning of this chapter. Following this overview are sections reviewing exemplary implantable devices used for treating various cardiovascular disorders. The majority of this chapter is then devoted to descriptions of necessary engineering characterizations and design verification test methods most relevant to developing cardiovascular devices for commercialization. Particular emphasis is placed on the attributes that are significantly affected by the biomaterials used in the designs. These include physical properties, such as the transformation temperatures for nitinol self-expanding devices, mechanical properties, structure integrity and durability, corrosion risk assessment as well as functional testing. In addition, biocompatibility testing refers to a battery of testing used to evaluate the biological reaction of the human body to the implanted device. There is a well-recognized ISO standard that governs the specific test protocol requirements (ISO 10993). Safety evaluation studies (in vitro and in vivo) are conducted on a variety of biomaterials, medical devices, and related products to identify the presence of toxins or any other potentially harmful effects. Common assessments of device imaging are also briefly described. These include radiopacity as well as magnetic resonance imaging (MRI) safety and compatibility.

Author: Mostafa Tazarv
Publisher:
ISBN:
Category : Columns, Concrete
Languages : en
Pages : 406

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Longitudinal bar debonding allowed spread of yielding and prevented premature failure of reinforcements in UHPC-filled duct connections and grouted coupler column pedestal. The SMA-reinforced ECC column showed superior seismic performance compared to a conventional column in which the plastic hinge damage was limited to only ECC cover spalling even under 12% drift ratio cycles. The column residual displacements were 79% lower than CIP residual displacements on average due to the superelastic NiTi SMA longitudinal reinforcement, and higher base shear capacity and higher displacement capacity were observed. The analytical modeling methods were simple and sufficiently accurate for general design and analyses of precast components proposed in the present study. The proposed symmetrical material model for reinforcing NiTi superelastic SMA was found to be a viable alternative to the more complex asymmetrical model.