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Constitutive Modeling Of Nanotube Reinforced Polymer Composite Systems Nasa
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Book Synopsis Constitutive Modeling of Nanotube-reinforced Polymer Composite Systems by : Gregory M. Odegard
Download or read book Constitutive Modeling of Nanotube-reinforced Polymer Composite Systems written by Gregory M. Odegard and published by . This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a technique has been proposed for developing constitive models for polymer composite systems reinforced with single-walled carbon nanotubes (SWNT). Since the polymer molecules are on the same size scale as the nanotubes, the interaction at the polymer/nanotube interface is highly dependent on the local molecular structure and bonding. At these small length scales, the lattice structures of the nanotube and polymer chains cannot be be considered continuous, and the bulk mechanical properties of the SWNT/polymer composites can no longer be determined through traditional micromechanical approaches that are formulated using continuum mechanics. It is proposed herein that the nanotube, the local polymer near the nanotube, and the nanotube/polymer interface can be modeled as an effective continuum fiber using an equivalent-continuum modeling method.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721268702 Total Pages :32 pages Book Rating :4.2/5 (687 download)
Book Synopsis Constitutive Modeling of Nanotube-Reinforced Polymer Composite Systems by : National Aeronautics and Space Administration (NASA)
Download or read book Constitutive Modeling of Nanotube-Reinforced Polymer Composite Systems written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a technique has been proposed for developing constitutive models for polymer composite systems reinforced with single-walled carbon nanotubes (SWNT). Since the polymer molecules are on the same size scale as the nanotubes, the interaction at the polymer/nanotube interface is highly dependent on the local molecular structure and bonding. At these small length scales, the lattice structures of the nanotube and polymer chains cannot be considered continuous, and the bulk mechanical properties of the SWNT/polymer composites can no longer be determined through traditional micromechanical approaches that are formulated using continuum mechanics. It is proposed herein that the nanotube, the local polymer near the nanotube, and the nanotube/polymer interface can be modeled as an effective continuum fiber using an equivalent-continuum modeling method. The effective fiber retains the local molecular structure and bonding information and serves as a means for incorporating micromechanical analyses for the prediction of bulk mechanical properties of SWNT/polymer composites with various nanotube sizes and orientations. As an example, the proposed approach is used for the constitutive modeling of two SWNT/polyethylene composite systems, one with continuous and aligned SWNT and the other with discontinuous and randomly aligned nanotubes. Odegard, Gregory M. and Harik, Vasyl M. and Wise, Kristopher E. and Gates, Thomas S. Langley Research Center NASA/TM-2001-211044, L-18094, NAS 1.15:211044
Download or read book 纳米线和纳米带——材料、性能和器件卷1:金属和特种纳米线 written by and published by 清华大学出版社有限公司. This book was released on 2004 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA Langley Scientific and Technical Information Output-2001 by :
Download or read book NASA Langley Scientific and Technical Information Output-2001 written by and published by . This book was released on 2002 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Nanoscience, Engineering, and Technology by : William A. Goddard III
Download or read book Handbook of Nanoscience, Engineering, and Technology written by William A. Goddard III and published by CRC Press. This book was released on 2007-05-03 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to study and manipulate matter at the nanoscale is the defining feature of 21st-century science. The first edition of the standard-setting Handbook of Nanoscience, Engineering, and Technology saw the field through its infancy. Reassembling the preeminent team of leading scientists and researchers from all areas of nanoscience and nanote
Book Synopsis Nanowires and Nanobelts by : Zhong Lin Wang
Download or read book Nanowires and Nanobelts written by Zhong Lin Wang and published by Springer Science & Business Media. This book was released on 2013-06-05 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 1, Metal and Semiconductor Nanowires covers a wide range of materials systems, from noble metals (such as Au, Ag, Cu), single element semiconductors (such as Si and Ge), compound semiconductors (such as InP, CdS and GaAs as well as heterostructures), nitrides (such as GaN and Si3N4) to carbides (such as SiC). The objective of this volume is to cover the synthesis, properties and device applications of nanowires based on metal and semiconductor materials. The volume starts with a review on novel electronic and optical nanodevices, nanosensors and logic circuits that have been built using individual nanowires as building blocks. Then, the theoretical background for electrical properties and mechanical properties of nanowires is given. The molecular nanowires, their quantized conductance, and metallic nanowires synthesized by chemical technique will be introduced next. Finally, the volume covers the synthesis and properties of semiconductor and nitrides nanowires.
Book Synopsis Constitutive Modeling of Nanotube-Reinforced Polymer Composites by : G. M. Odegard
Download or read book Constitutive Modeling of Nanotube-Reinforced Polymer Composites written by G. M. Odegard and published by . This book was released on 2002 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a technique is presented for developing constitutive models for polymer composite systems reinforced with single-walled carbon nanotubes (SWNT). Because the polymer molecules are on the same size scale as the nanotubes, the interaction at the polymer/nanotube interface is highly dependent on the local molecular structure and bonding. At these small length scales, the lattice structures of the nanotube and polymer chains cannot be considered continuous, and the bulk mechanical properties can no longer be determined through the traditional micromechanical approaches that are formulated by using continuum mechanics. It is proposed herein that the nanotube, the local polymer near the nanotube, and the nanotube/polymer interface can be modeled as an effective continuum fiber using an equivalent-continuum modeling method. The micromechanical analyses for the prediction of bulk mechanical properties of SWNT/polymer composites with various nanotube lengths, concentrations, and orientations. As an example, the proposed approach is used for the constitutive modeling of two SWNT/polyimide composite systems.
Download or read book ICASE Semiannual Report written by and published by . This book was released on 2002 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes research conducted at ICASE in applied mathematics, computer science, fluid mechanics, and structures and material sciences during the period October 1, 2000 through March 31, 2001.
Book Synopsis Clay-containing Polymeric Nanocomposites by : L. A. Utracki
Download or read book Clay-containing Polymeric Nanocomposites written by L. A. Utracki and published by iSmithers Rapra Publishing. This book was released on 2004 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a very comprehensive book and represents the forefront of the technology of Clay-Containing Polymeric Nanocomposites.
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2003 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Equivalent-continuum Modeling of Nano-structured Materials by : Gregory M. Odegard
Download or read book Equivalent-continuum Modeling of Nano-structured Materials written by Gregory M. Odegard and published by . This book was released on 2001 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method has been developed for modeling structure-property relationships of nano-structured materials. This method serves as a link between computational chemistry and solid mechanics by substituting discrete molecular structures with an equivalent-continuum model. It has been shown that this substitution may be accomplished by equating the vibrational potential energy of a nano-structured material with the strain energy of representative truss and continuum models. As an important example with direct application to the development and characterization of single-walled carbon nanotubes, the model has been applied to determine the effective continuum geometry of a graphene sheet. A representative volume element of the equivalent-continuum model has been developed with an effective thickness. This effective thickness has been shown to be similar to, but slightly smaller than, the interatomic spacing of graphite.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781723715549 Total Pages :38 pages Book Rating :4.7/5 (155 download)
Book Synopsis Constitutive Modeling of Nanotube-Reinforced Polymer Composites by : National Aeronautics and Space Adm Nasa
Download or read book Constitutive Modeling of Nanotube-Reinforced Polymer Composites written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-14 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a technique is presented for developing constitutive models for polymer composite systems reinforced with single-walled carbon nanotubes (SWNT). Because the polymer molecules are on the same size scale as the nanotubes, the interaction at the polymer/nanotube interface is highly dependent on the local molecular structure and bonding. At these small length scales, the lattice structures of the nanotube and polymer chains cannot be considered continuous, and the bulk mechanical properties can no longer be determined through traditional micromechanical approaches that are formulated by using continuum mechanics. It is proposed herein that the nanotube, the local polymer near the nanotube, and the nanotube/polymer interface can be modeled as an effective continuum fiber using an equivalent-continuum modeling method. The effective fiber serves as a means for incorporating micromechanical analyses for the prediction of bulk mechanical properties of SWNT/polymer composites with various nanotube lengths, concentrations, and orientations. As an example, the proposed approach is used for the constitutive modeling of two SWNT/polyimide composite systems.Odegard, G. M. and Gates, T. S. and Wise, K. E. and Park, C. and Siochi, E. J. and Bushnell, Dennis M. (Technical Monitor)Langley Research CenterCARBON NANOTUBES; POLYMERS; MOLECULAR STRUCTURE; BONDING; COMPOSITE STRUCTURES; CONTINUUM MODELING; MATHEMATICAL MODELS; MECHANICAL PROPERTIES; MOLECULAR CHAINS; POLYIMIDES
Book Synopsis Nano-Bio- Electronic, Photonic and MEMS Packaging by : C. P.(Ching-Ping) Wong
Download or read book Nano-Bio- Electronic, Photonic and MEMS Packaging written by C. P.(Ching-Ping) Wong and published by Springer Nature. This book was released on 2021-03-17 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows how nanofabrication techniques and nanomaterials can be used to customize packaging for nano devices with applications to electronics, photonics, biological and biomedical research and products. It covers topics such as bio sensing electronics, bio device packaging, MEMS for bio devices and much more, including: Offers a comprehensive overview of nano and bio packaging and their materials based on their chemical and physical sciences and mechanical, electrical and material engineering perspectives; Discusses nano materials as power energy sources, computational analyses of nano materials including molecular dynamic (MD) simulations and DFT calculations; Analyzes nanotubes, superhydrophobic self-clean Lotus surfaces; Covers nano chemistry for bio sensor/bio material device packaging. This second edition includes new chapters on soft materials-enabled packaging for stretchable and wearable electronics, state of the art miniaturization for active implantable medical devices, recent LED packaging and progress, nanomaterials for recent energy storage devices such as lithium ion batteries and supercapacitors and their packaging. Nano- Bio- Electronic, Photonic and MEMS Packaging is the ideal book for all biomedical engineers, industrial electronics packaging engineers, and those engaged in bio nanotechnology applications research.
Download or read book Aerospace America written by and published by . This book was released on 2002 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Molecular Weight on the Mechanical Performance of a Thermoplastic Glassy Polyimide by : Lee M. Nicholson
Download or read book Influence of Molecular Weight on the Mechanical Performance of a Thermoplastic Glassy Polyimide written by Lee M. Nicholson and published by . This book was released on 1999 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Additive Manufacturing Hybrid Processes for Composites Systems by : António Torres Marques
Download or read book Additive Manufacturing Hybrid Processes for Composites Systems written by António Torres Marques and published by Springer Nature. This book was released on 2020-04-27 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the emerging additive manufacturing technology and its applications beyond state-of-the-art, fibre-reinforced thermoplastics. It also discusses the development of a hybrid, integrated process that combines additive and subtractive operations in a single-step platform, allowing CAD-to-Part production with freeform shapes using long or continuous fibre-reinforced thermoplastics. The book covers the entire value chain of this next-generation technology, from part design and materials composition to transformation stages, product evaluation, and end-of-life studies. Moreover, it addresses the following engineering issues: • Design rules for hybrid additive manufacturing; • Thermoplastic compounds for high-temperature and -strength applications; • Advanced extrusion heads and process concepts; • Hybridisation strategies; • Software ecosystems for hAM design, pre-processing, process planning, emulating and multi-axis processing; • 3D path generators for hAM based on a multi-objective optimisation algorithm that matches the recent curved adaptive slicing method with a new transversal scheme; • hAM parameters, real-time monitoring and closed-loop control; • Multiparametric nondestructive testing (NDT) tools customised for FRTP AM parts; • Sustainable manufacturing processes validated by advanced LCA/LCC models.
Download or read book Activities of ICASE written by and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
