First Principles Modelling of Shape Memory Alloys
First Principles Modelling of Shape Memory Alloys

Author: Oliver Kastner

Publisher: Springer Science & Business Media

Published: 2012-07-31

Total Pages: 183

ISBN-13: 3642286194

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Materials sciences relate the macroscopic properties of materials to their microscopic structure and postulate the need for holistic multiscale research. The investigation of shape memory alloys is a prime example in this regard. This particular class of materials exhibits strong coupling of temperature, strain and stress, determined by solid state phase transformations of their metallic lattices. The present book presents a collection of simulation studies of this behaviour. Employing conceptually simple but comprehensive models, the fundamental material properties of shape memory alloys are qualitatively explained from first principles. Using contemporary methods of molecular dynamics simulation experiments, it is shown how microscale dynamics may produce characteristic macroscopic material properties. The work is rooted in the materials sciences of shape memory alloys and covers thermodynamical, micro-mechanical and crystallographical aspects. It addresses scientists in these research fields and their students.

Thermo-Mechanically Coupled Cyclic Deformation and Fatigue Failure of NiTi Shape Memory Alloys
Thermo-Mechanically Coupled Cyclic Deformation and Fatigue Failure of NiTi Shape Memory Alloys

Author: Guozheng Kang

Publisher: Springer Nature

Published: 2023-07-24

Total Pages: 312

ISBN-13: 9819927528

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Written by leading experts in the field, this book highlights an authoritative and comprehensive introduction to thermo-mechanically coupled cyclic deformation and fatigue failure of shape memory alloys. The book deals with: (1) experimental observations on the cyclic deformation and fatigue failure in the macroscopic and microscopic scales; (2) molecular dynamics and phase-field simulations for the thermo-mechanical behaviors and underlying mechanisms during cyclic deformation; (3) macroscopic phenomenological and crystal plasticity-based cyclic constitutive models; and (4) fatigue failure models. This book is an important reference for students, practicing engineers and researchers who study shape memory alloys in the areas of mechanical, civil and aerospace engineering as well as materials science.

Shape Memory Composites Based on Polymers and Metals for 4D Printing
Shape Memory Composites Based on Polymers and Metals for 4D Printing

Author: Muni Raj Maurya

Publisher: Springer Nature

Published: 2022-05-18

Total Pages: 425

ISBN-13: 3030941140

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Shape Memory Composites Based on Polymers and Metals for 4D Printing is a thorough discussion of the physics and chemistry behind this developing area of materials science. It provides readers with a clear exposition of shape-memory-composite (SMC) preparation techniques for 3D and 4D printing processes and explains how intelligent manufacturing technology may be applied in fields such as robotics, construction, medical science, and smart sensors. The book covers fundamental background knowledge on the synthesis of shape memory polymers (SMPs) and shape memory alloys (SMAs), and additive manufacturing techniques. Polymers and metals and their roles in 4D printing are dealt with separately, and applications of 4D printing are treated in their own chapter. The different alloy compositions and nanoparticle fillers in polymer composites are examined in detail, along with the key mechanisms involved in their processing. Hybrid nanofillers and synergistic composite mixtures, which are either in extensive current use or have shown promising outcomes in the field of 4D printing, are thoroughly discussed. Differences between these novel SMCs and traditional metal alloys, organic and inorganic composites are presented, and means by which they can improve mechanical properties that are triggered by external sources like magnetic field, temperature, and pH of solvent, are set out. This book provides practitioners, industrial researchers, and scholars with a state-of-the-art overview of SMP/SMA synthesis, additive manufacturing, modification in synthesis of SMCs for 4D printing, and their likely future applications.

Shape Memory Alloys
Shape Memory Alloys

Author: M. Fremond

Publisher: Springer

Published: 2014-05-04

Total Pages: 152

ISBN-13: 3709143489

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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.

Design of Shape Memory Alloy (SMA) Actuators
Design of Shape Memory Alloy (SMA) Actuators

Author: Ashwin Rao

Publisher: Springer

Published: 2015-05-08

Total Pages: 137

ISBN-13: 3319031880

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This short monograph presents an analysis and design methodology for shape memory alloy (SMA) components such as wires, beams, and springs for different applications. The solid-solid, diffusionless phase transformations in thermally responsive SMA allows them to demonstrate unique characteristics like superelasticity and shape memory effects. The combined sensing and actuating capabilities of such materials allows them to provide a system level response by combining multiple functions in a single material system. In SMA, the combined mechanical and thermal loading effects influence the functionality of such materials. The aim of this book is to make the analysis of these materials accessible to designers by developing a "strength of materials" approach to the analysis and design of such SMA components inspired from their various applications with a review of various factors influencing the design process for such materials.

First Principles Modelling of Shape Memory Alloys
First Principles Modelling of Shape Memory Alloys

Author: Oliver Kastner

Publisher: Springer

Published: 2012-08-01

Total Pages: 176

ISBN-13: 9783642286209

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Materials sciences relate the macroscopic properties of materials to their microscopic structure and postulate the need for holistic multiscale research. The investigation of shape memory alloys is a prime example in this regard. This particular class of materials exhibits strong coupling of temperature, strain and stress, determined by solid state phase transformations of their metallic lattices. The present book presents a collection of simulation studies of this behaviour. Employing conceptually simple but comprehensive models, the fundamental material properties of shape memory alloys are qualitatively explained from first principles. Using contemporary methods of molecular dynamics simulation experiments, it is shown how microscale dynamics may produce characteristic macroscopic material properties. The work is rooted in the materials sciences of shape memory alloys and covers thermodynamical, micro-mechanical and crystallographical aspects. It addresses scientists in these research fields and their students.

Shape Memory Alloys
Shape Memory Alloys

Author: Dimitris C. Lagoudas

Publisher: Springer Science & Business Media

Published: 2008-06-05

Total Pages: 446

ISBN-13: 0387476857

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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.

IUTAM Symposium on Variational Concepts with Applications to the Mechanics of Materials
IUTAM Symposium on Variational Concepts with Applications to the Mechanics of Materials

Author: Klaus Hackl

Publisher: Springer Science & Business Media

Published: 2010-06-02

Total Pages: 282

ISBN-13: 9048191955

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Variational calculus has been the basis of a variety of powerful methods in the ?eld of mechanics of materials for a long time. Examples range from numerical schemes like the ?nite element method to the determination of effective material properties via homogenization and multiscale approaches. In recent years, however, a broad range of novel applications of variational concepts has been developed. This c- prises the modeling of the evolution of internal variables in inelastic materials as well as the initiation and development of material patterns and microstructures. The IUTAM Symposium on “Variational Concepts with Applications to the - chanics of Materials” took place at the Ruhr-University of Bochum, Germany, on September 22–26, 2008. The symposium was attended by 55 delegates from 10 countries. Altogether 31 lectures were presented. The objective of the symposium was to give an overview of the new dev- opments sketched above, to bring together leading experts in these ?elds, and to provide a forum for discussing recent advances and identifying open problems to work on in the future. The symposium focused on the developmentof new material models as well as the advancement of the corresponding computational techniques. Speci?c emphasis is put on the treatment of materials possessing an inherent - crostructure and thus exhibiting a behavior which fundamentally involves multiple scales. Among the topics addressed at the symposium were: 1. Energy-based modeling of material microstructures via envelopes of n- quasiconvex potentials and applications to plastic behavior and pha- transformations.

Advances in Adaptive Ultrasonics
Advances in Adaptive Ultrasonics

Author: Andrew Feeney

Publisher: CRC Press

Published: 2024-12-16

Total Pages: 209

ISBN-13: 1040268250

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Providing an overview of a new generation of ultrasonic technology, Advances in Adaptive Ultrasonics explores how ultrasonic devices can harness the properties of advanced materials, including shape memory alloys and metamaterials. The applications of ultrasonic devices range from surgery, drilling, and welding to sonar and energy harvesting. This book demonstrates how engineers can overcome common issues within the field of ultrasonics, such as precision control and choice of materials. Beginning with an overview of ultrasonic technology as it is currently understood, the book goes on to discuss the newest iteration in the form of adaptive ultrasonics and the benefits this can offer to multiple industries. Key topics include advanced materials, notably phase-transforming shape memory alloys, and the principles of adaptive ultrasonic transducer design. The book also covers measurement approaches for characterising adaptive ultrasonic devices and provides an overview of potential applications for the technology. This book will be of interest to students and engineers in the field of ultrasonic surgery, industrial engineering, welding, and mechanical materials.