Download or read book Magneto Active Polymers written by Jean-Paul Pelteret and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-12-16 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: From fabrication to testing and modeling this monograph covers all aspects on the materials class of magneto active polymers. The focus is on computational modeling of manufacturing processes and material parameters. As other smart materials, these elastomers have the ability to change electrical and mechanical properties upon application of magnetic fields. This allows for novel applications ranging from biomedical engineering to mechatronics.
Download or read book Magneto Active Polymers written by Jean-Paul Pelteret and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-12-16 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: From fabrication to testing and modeling this monograph covers all aspects on the materials class of magneto active polymers. The focus is on computational modeling of manufacturing processes and material parameters. As other smart materials, these elastomers have the ability to change electrical and mechanical properties upon application of magnetic fields. This allows for novel applications ranging from biomedical engineering to mechatronics.
Download or read book On the Modeling and Computation of Electro and Magneto active Polymers written by and published by . This book was released on 2015 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electro and Magneto Mechanics of Soft Solids written by Kostas Danas and published by Springer Nature. This book was released on with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigations of Properties of Magnetoactive Polymers written by Jayadurga Iyer Ganapathi and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic responses of the MR Elastomers and MR gel have been studied care- fully by various research groups. However, to understand completely the dynamic response of the material, it is important to have a clear understanding of quasi-static response of the material. Thus, for the current work, we have studied quasi-static response of the MR gel. For current setup, 27 samples were prepared using Septon, plasticizer and magnetic particles and were tested for 3 rounds over 3 different magnetic fields under plane strain compression. The results from plane strain compression show linear increase in the load taken with the increase in concentration of magnetic particles in absence of any magnetic field. The response characteristics under uniform magnetic field showed a huge leap in the load taken for particular deflection. To study the quasistatic respose, the material is assumed to behave like an isotropic hyperelastic response. Field dependent Neo-Hookean and field dependent Valanis Landel models have been fit to the data, and it was found that simple 1-term field dependent Valanis Landel model with power law coefficient as four agrees well with the shear modulus obtained from experiments. The shear modulus of MAP from the Valanis Landel and Neo Hookean model was assumed to be linearly dependent on the concentration of magnetic particles and magnetic field, and this matched the experimental data well.
Download or read book Magnetic Hybrid Materials written by Stefan Odenbach and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-10-25 with total page 1172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Externally tunable properties allow for new applications of magnetic hybrid materials containing magnetic micro- and nanoparticles in sensors and actuators in technical and medical applications. By means of easy to generate and control magnetic fields, changes of the internal particle arrangements and the macroscopic properties can be achieved. This monograph delivers the latest insights into multi-scale modelling, experimental characterization, manufacturing and application of those magnetic hybrid materials.
Download or read book Advances in Sustainable Polymers written by Vimal Katiyar and published by Springer Nature. This book was released on 2020-03-03 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses synthesis and characterization of sustainable polymers. The book covers opportunities and challenges of using sustainable polymers to replace existing petroleum based feedstock. This volume provides insights into the chemistry of polymerization, and discusses tailoring the properties of the polymers at the source in order fit requirements of specific applications. The book also covers processing of these polymers and their critical assessment. The book will be of use to chemists and engineers in the industry and academia working on sustainable polymers and their commercialization to replace dependence on petroleum-based polymers.
Download or read book DESIGN AND CHARACTERIZATION OF MAGNETIC FIELD ACTUATED MULTILAYERED POLYMERS written by Rui Leng and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates multi-field actuated smart materials for potential biomedical applications. Magneto-active elastomers (MAEs) consisting of magnetic particles and a two-part elastomer were first designed and tested for their degree of actuation as unimorphs. The study considered two types of magnetic particles, hard and soft. For hard magnetic particles, barium hexaferrite (BHF) microparticles were chosen based on their responsiveness to magnetic field and their hard magnetic properties. The permanent magnetic dipoles of BHF resulting in large remanent magnetization can be polarized by magnetic field into designed directions. For soft magnetic particles, iron oxide microparticles were chosen where application of magnetic field results in induced dipoles. The elastomer matrix for the MAEs was fabricated using a two-part polydimethylsiloxane (PDMS) base and curing agent. BHF-PDMS and iron oxide-PDMS were fabricated using conventional casting method, processed into unimorphs and actuated as proof of concept. A unimorph structure is a layered structure where a substrate material is deformed using an active material and designed for large bending deformation. Bending and folding actuation was elicited with BHF-PDMS thin films as the particle magnetic dipoles were poled in a uniform direction beforehand. The film then reacts to external magnetic field by aligning the dipole directions with the external magnetic field direction. Iron oxide-PDMS was also studied and actuated using external magnetic field. Other actuation configurations designed included gripping and flower blooming motions. Large bending actuation was achieved with both hard and soft MAEs, and the next step was to test for printability. Iron oxide-PDMS was chosen for the printability test and the material compositions was tuned by adjusting base to curing agent ratio and by the addition of thickening agent. The printability study considered parameters such as temperature and number of printed layers, and results showed that printable iron oxide-PDMS slurries were obtained with 5wt% fumed silica added. The matrix of the magneto-active polymer-based materials was also investigated by comparing PDMS with mechanically stiffer polyvinyl alcohol (PVA) in degree of actuation. In the last step, multi-field actuation was studied using both conventional casting and additive manufacturing (AM) methods. Shape memory polymers (SMPs) were chosen to act as the "active" substrate for their shape fixing and recovery abilities under different temperatures. Unimorph structures were again used to test actuation of MAE-SMP under both magnetic and thermal fields. A gripping configuration was designed and demonstrated using conventionally cast iron oxide-PDMS and SMPs. Printed iron oxide-SMP thin films were actuated to assess the impact of the functional gradient design, showing different degree of actuation with different compositions of materials. The outcome of this research aims at potential biomedical applications using smart materials to allow non-contact control with large actuations. Additive manufacturing will enable the facile fabrication of actuators using these multiple materials, and would allow more customized devices to be printed for ease of use, while adapting to each patient's unique condition and requirement.
Download or read book Soft Robotics written by Gareth J. Monkman and published by Bentham Science Publishers. This book was released on 2022-04-08 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soft robotics is a subfield of robotics that encompasses the design and fabrication of robots with soft and compliant materials. Soft robots represent components like human prosthetics or biomimicking systems. Soft robotics relies on technically astute designs based on the correct choice of materials to enable a level of dexterity not possible with rigid components alone. The basic prime movers (actuators) and perception (sensors) require control systems capable of accommodating imprecise feedback data and often unpredictable reaction times. Mobility in such robots is more akin to entomological or marine systems than conventional guided vehicles. This reference is a guide to materials and systems used in soft robotics. If features 6 chapters contributed by robotics experts that review fundamental and applied topics that are important for understanding the requirements of soft robotics design projects and the physics of the polymers involved. Chapters are organized for easy reading and include references. The topics include: - Aspects of materials processing and engineering for the development of soft robotic devices - A review on biological gripping principles and their application to robotics - Information about self-sensing electroadhesive polymer grippers with magnetically controllable surface geometry - Theoretical and experimental investigations of magnetic hybrid materials - Modeling and dynamic analysis of a novel rotary soft robotic arm by transfer matrix method - Design and control of a portable continuum robot for pipe inspection assisted by a rigid manipulator This book is a suitable reference for scholars and engineers who are seeking knowledge about materials and design principles in soft robotics with its practical applications.
Download or read book Electroactive Polymers written by Muralisrinivasan Natamai Subramanian and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-01-18 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on the development of high performance, high efficiency electroactive polymers (EAPs), and electromechanically active polymers by controlling molecular chemical structure and morphology for all applications. This book is ideal for academicians and researchers in polymer and materials science.
Download or read book Bioinspired Sensing Actuation and Control in Underwater Soft Robotic Systems written by Derek A. Paley and published by Springer Nature. This book was released on 2020-11-06 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes representative research from the state‐of‐the‐art in the emerging field of soft robotics, with a special focus on bioinspired soft robotics for underwater applications. Topics include novel materials, sensors, actuators, and system design for distributed estimation and control of soft robotic appendages inspired by the octopus and seastar. It summarizes the latest findings in an emerging field of bioinspired soft robotics for the underwater domain, primarily drawing from (but not limited to) an ongoing research program in bioinspired autonomous systems sponsored by the Office of Naval Research. The program has stimulated cross‐disciplinary research in biology, material science, computational mechanics, and systems and control for the purpose of creating novel robotic appendages for maritime applications. The book collects recent results in this area.
Download or read book Electro rheological Fluids and Magneto rheological Suspensions written by Rongjia Tao and published by World Scientific. This book was released on 2011 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume presents the scientific progress, state-of-art technology, and thrust areas to be focused in electrorheology (ER) and magentorheology (MR). In the last couple of years, this area produced significant impacts on automobile industry, bridge and building construction, aerospace industry, and defense industry. Recent innovation in this area lead to new technology, which has great impact on energy production and energy conservation. This book includes all papers presented at the 12th International Conference on ER Fluids and MR Suspensions, held in Philadelphia, USA, August 16 to 20, 2010, providing a comprehensive overview of this flourishing area. It is an essential source of reference for chemists, engineers, physicists, and materials scientists. It is also suitable for science and engineering students.
Download or read book Electro rheological Fluids And Magneto rheological Suspensions Proceedings Of The 12th International Conference written by Rongjia Tao and published by World Scientific. This book was released on 2011-05-26 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume presents the scientific progress, state-of-art technology, and thrust areas to be focused in electrorheology (ER) and magentorheology (MR). In the last couple of years, this area produced significant impacts on automobile industry, bridge and building construction, aerospace industry, and defense industry. Recent innovation in this area lead to new technology, which has great impact on energy production and energy conservation. This book includes all papers presented at the 12th International Conference on ER Fluids and MR Suspensions, held in Philadelphia, USA, August 16 to 20, 2010, providing a comprehensive overview of this flourishing area. It is an essential source of reference for chemists, engineers, physicists, and materials scientists. It is also suitable for science and engineering students.
Download or read book Transparent Large Strain Thermoplastic Polyurethane Magneto Active Nanocomposites written by Mitra Yoonessi and published by BiblioGov. This book was released on 2013-06 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart adaptive materials are an important class of materials which can be used in space deployable structures, morphing wings, and structural air vehicle components where remote actuation can improve fuel efficiency. Adaptive materials can undergo deformation when exposed to external stimuli such as electric fields, thermal gradients, radiation (IR, UV, etc.), chemical and electrochemical actuation, and magnetic field. Large strain, controlled and repetitive actuation are important characteristics of smart adaptive materials. Polymer nanocomposites can be tailored as shape memory polymers and actuators. Magnetic actuation of polymer nanocomposites using a range of iron, iron cobalt, and iron manganese nanoparticles is presented. The iron-based nanoparticles were synthesized using the soft template (1) and Sun's (2) methods. The nanoparticles shape and size were examined using TEM. The crystalline structure and domain size were evaluated using WAXS. Surface modifications of the nanoparticles were performed to improve dispersion, and were characterized with IR and TGA. TPU nanocomposites exhibited actuation for approximately 2wt% nanoparticle loading in an applied magnetic field. Large deformation and fast recovery were observed. These nanocomposites represent a promising potential for new generation of smart materials.
Download or read book Generalized Models and Non classical Approaches in Complex Materials 1 written by Holm Altenbach and published by Springer. This book was released on 2018-03-24 with total page 799 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first of 2 special volumes dedicated to the memory of Gérard Maugin. Including 40 papers that reflect his vast field of scientific activity, the contributions discuss non-standard methods (generalized model) to demonstrate the wide range of subjects that were covered by this exceptional scientific leader. The topics range from micromechanical basics to engineering applications, focusing on new models and applications of well-known models to new problems. They include micro–macro aspects, computational endeavors, options for identifying constitutive equations, and old problems with incorrect or non-satisfying solutions based on the classical continua assumptions.
Download or read book Intelligent Materials and Structures written by Haim Abramovich and published by Walter de Gruyter GmbH & Co KG. This book was released on 2016-09-12 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent Materials and Structures provides exceptional insights into designing intelligent materials and structures for special applications in engineering. The author introduces the fundamental materials science involved in research endeavors and simultaneously reviews the current state-of-the-art of intelligent materials and structures. Separate chapters are devoted to the thorough examination of theory and application of laminated composite materials, Piezoelectricity, Shape Memory Alloys, Electro- and Magnetorheological fluids as well as Magneto- and Electrostrictive materials. Each chapter contains numerous equations and figures describing theories, models and behavior of the intelligent material discussed. Special attention is paid to applications of intelligent materials to various structures in the aerospace and medical sector, piezoelectric motors as well as piezoelectric and electromagnetic energy harvesting. Contents: Introduction to Intelligent Materials and Structures Laminated Composite Materials Piezoelectricity Shape Memory Alloys Electrorheological and Magnetorheological Fluids Magnetostrictive and Electrostrictive Materials Applications of Intelligent Materials in Structures Energy Harvesting using Intelligent Materials Index
Download or read book New Achievements in Continuum Mechanics and Thermodynamics written by Bilen Emek Abali and published by Springer. This book was released on 2019-03-13 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a liber amicorum dedicated to Wolfgang H. Müller, and highlights recent advances in Prof. Müller’s major fields of research: continuum mechanics, generalized mechanics, thermodynamics, mechanochemistry, and geomechanics. Over 50 of Prof. Müller’s friends and colleagues contributed to this book, which commemorates his 60th birthday and was published in recognition of his outstanding contributions.
