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Author : Bilal Ahmad
Publisher :
ISBN 13 : 9783961821082
Total Pages : pages
Book Rating : 4.8/5 (21 download)
Download or read book Crash Simulation of Woven Fabric Thermoplastic Composites written by Bilal Ahmad and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Katia Mocellin
Publisher : Springer Nature
ISBN 13 : 3031420934
Total Pages : 788 pages
Book Rating : 4.0/5 (314 download)
Download or read book Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity written by Katia Mocellin and published by Springer Nature. This book was released on 2023-09-19 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume highlights the latest advances, innovations, and applications in the field of metal forming, as presented by leading international researchers and engineers at the 14th International Conference on Technology of Plasticity (ICTP), held in Mandelieu-La Napoule, France on September 24-29, 2023. It covers a diverse range of topics such as manufacturing processes & equipment, materials behavior and characterization, microstructure design by forming, surfaces & interfaces, control & optimization, green / sustainable metal forming technologies, digitalization & AI in metal forming, multi-material processing, agile / flexible metal forming processes, forming of non-metallic materials, micro-forming and luxury applications. The contributions, which were selected by means of a rigorous international peer-review process, present a wealth of exciting ideas that will open novel research directions and foster multidisciplinary collaboration among different specialists.
Author : Weitao Yi
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (485 download)
Download or read book Micromechanics Based Composite Material Models for Crashworthiness Finite Element Simulation written by Weitao Yi and published by . This book was released on 2001 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: A micromechanical model is developed for laminated unidirectional fiber reinforced composite materials and implemented in the explicit finite element method. The objective of this study is to get an accurate and simple micro-model, which can be used in the displacement-based nonlinear explicit finite element code LS-DYNA. Within the model a representative volume cell is assumed. The micromechanical model implemented in the explicit finite element code can be used for simlulating the behavior of composite structures under various loads such as impact and crash. The stress-strain relation for the micro-model is derived for shell element and solid element. Micro Failure Criterion (MFC) is presented for each material constituent and failure mode. The implemented model is validated through several test examples. As a demonstration case of the stability of the developed micro-model, a finite element model of Graphite/Epoxy tube structure is developed and simulated under axial crash. A good correlation is observed between the predicted and the experiment results in the published literature. Base on the micromechanical model described above, rate dependent inelastic constitutive equations are implemented to predict the strain rate dependent deformation response of a composite material. Another micromechanical model for woven fabric composite with nonlinear stress-strain relation is also developed to simulate crashworthiness of woven composite.
Author : Han-Yong Jeon
Publisher : BoD – Books on Demand
ISBN 13 : 9535122711
Total Pages : 328 pages
Book Rating : 4.5/5 (351 download)
Download or read book Non-woven Fabrics written by Han-Yong Jeon and published by BoD – Books on Demand. This book was released on 2016-03-24 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-woven Fabrics is differentiated text which covers overall stream from raw fibers to final products and includes features of manufacturing and finish process with specialized application end use. Application range of non-woven fabrics is extended to all the industrial fields needless to say apparel, such as ICT (information and communication technology), bio- and medicals, automobiles, architectures, construction and environmental. Every chapter is related to the important and convergent fields with the technical application purpose from downstream to upstream fields. Also, applicability of non-woven fabrics is introduced to be based on the structural analysis of dimensional concept and various non-woven fabrics as a state-of-art embedded convergent material are emphasized in all industry fields by using nanofibers and carbon fibers.
Author : Polona Dobnik Dubrovski
Publisher : IntechOpen
ISBN 13 : 9789533071947
Total Pages : 436 pages
Book Rating : 4.0/5 (719 download)
Download or read book Woven Fabric Engineering written by Polona Dobnik Dubrovski and published by IntechOpen. This book was released on 2010-11-18 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal in preparing this book was to publish contemporary concepts, new discoveries and innovative ideas in the field of woven fabric engineering, predominantly for the technical applications, as well as in the field of production engineering and to stress some problems connected with the use of woven fabrics in composites. The advantage of the book Woven Fabric Engineering is its open access fully searchable by anyone anywhere, and in this way it provides the forum for dissemination and exchange of the latest scientific information on theoretical as well as applied areas of knowledge in the field of woven fabric engineering. It is strongly recommended for all those who are connected with woven fabrics, for industrial engineers, researchers and graduate students.
Author : Antonio J.M. Ferreira
Publisher : Società Editrice Esculapio
ISBN 13 : 8874889771
Total Pages : 212 pages
Book Rating : 4.8/5 (748 download)
Download or read book ICCS19 19th International Conference on Composite Structures written by Antonio J.M. Ferreira and published by Società Editrice Esculapio. This book was released on 2016-08-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, it is quite easy to see various applications of fibrous composites, functionally graded materials, laminated composite, nano-structured reinforcement, morphing composites, in many engineering fields, such as aerospace, mechanical, naval and civil engineering. The increase in the use of composite structures in different engineering practices justify the present international meeting where researches from every part of the globe can share and discuss the recent advancements regarding the use of standard structural components within advanced applications such as buckling, vibrations, repair, reinforcements, concrete, composite laminated materials and more recent metamaterials. For this reason, the establishment of this 19th edition of International Conference on Composite Structures has appeared appropriate to continue what has been begun during the previous editions. ICCS wants to be an occasion for many researchers from each part of the globe to meet and discuss about the recent advancements regarding the use of composite structures, sandwich panels, nanotechnology, bio-composites, delamination and fracture, experimental methods, manufacturing and other countless topics that have filled many sessions during this conference. As a proof of this event, which has taken place in Porto (Portugal), selected plenary and keynote lectures have been collected in the present book.
Author : Richard Day
Publisher : Lulu.com
ISBN 13 : 0946881804
Total Pages : 91 pages
Book Rating : 4.9/5 (468 download)
Download or read book Advanced Composite Materials and Technologies for Aerospace Applications written by Richard Day and published by Lulu.com. This book was released on 2014-05-20 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Third International Conference on Advanced Composite Materials and Technologies for Aerospace Applications held on May 13-16, 2013, Wrexham, North Wales, United Kingdom
Author : Nageswara Rao Janapala
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (743 download)
Download or read book Crash Energy Absorption of Kevlar Fabric Composite Structures written by Nageswara Rao Janapala and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber reinforced composites currently being used in myriad applications including aerospace, defense and wind industries due to their light weight, higher specific strength and stiffness, compared to traditional metallic structures. For crashworthiness applications, advanced textile composites such as fabrics and braids, are showing superior performance over traditional tape laminated composites structures. Kevlar fabric composites, in particular, are offering a great potential as the next generation energy absorbing material for the rotorcraft applications. Unfortunately, none of the existing material models can predict the behavior of Kevlar fabric composites for the crashworthiness applications. The prime objective of this investigation is to develop a computationally efficient and robust material model based on a unified unit-cell approach to simulate the crush response of tubular and honeycomb structures made of Kevlar fabric composites under quasi-static and dynamic loading conditions. Tests are conducted at various levels to understand the constitutive behavior of Kevlar fabric composites. Based on experimental observations, a physics based material model is developed. This material model is then implemented in commercial finite element software such as LS-DYNA and ABAQUS as a User Material (UMAT) Routine. The material model is built by considering majority of length scales in the composites: Kevlar composite tows at the meso-scale, a fabric unit cell at macro-scale and overall structural level. The material model identifies a smallest repetitive unit (i.e. unit-cell) within the composite material. The tow geometry within the unit-cell is represented using a simplified three-dimensional description. An elastic-plastic constitutive law is developed to simulate the behavior of Kevlar composite tows. Efficient homogenization scheme along with appropriate failure criteria is implemented to calculate the effective quantities such as stiffness and stress and predict the response of the unit-cell. Coupon tests are conducted on unidirectional Kevlar and plain woven Kevlar fabric flat plaques. The unidirectional coupon tests are conducted to characterize the material properties such as stiffness, strength and plastic parameters necessary as input to the material model. The plain woven fabric coupon tests are conducted to verify the initial stiffness, strength and damage progression predictions of the model at the ply-level. Several tubes with square and circular cross-section are crushed quasi-statically using both flat-plate and plug-type crush initiators. During crushing, Kevlar fabric composite tubes buckled locally and failed progressively by forming folds similar to aluminum tubes. Test results show that the failure mode and overall energy absorption is not affected significantly by the change in fabric angle or the method of crushing. Dynamic crush tests on Kevlar fabric honeycomb structures also exhibited global folding failure mechanism with very little fiber fracture. During crushing, honeycombs typically reach a peak load and then crush at constant, sustained load which is a characteristic of an ideal crash energy behavior. The material module is verified by carrying out simulations at different levels. Coupon test data is initially validated for both the initial stiffness and the strength predictions. Tubular and honeycomb crush data is validated for the deformation behavior, the failure mechanism and the crash energy absorption characteristics. Strong correlation between simulation and experiments suggests that the model can be used as state-of-the-art computational tool for predicting the crushing behavior of tubular and honeycomb structures made of Kevlar fabric composites.
Author : József Karger-Kocsis
Publisher : Springer
ISBN 13 : 3030129039
Total Pages : 648 pages
Book Rating : 4.0/5 (31 download)
Download or read book Polypropylene Handbook written by József Karger-Kocsis and published by Springer. This book was released on 2019-03-18 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book extensively reviews Polypropylene (PP), the second most widely produced thermoplastic material, having been produced for over 60 years. Its synthesis, processing and application are still accompanied by vigorous R&D developments because the properties of PP are at the borderline between those of commodity and engineering thermoplastics. Readers are introduced to various tacticities and polymorphs of PP, and their effects on structural properties. Further, the book addresses the control of optical properties using nucleants, provides strategies for overcoming the limited cold/impact resistance of PP, examines in detail the effects of recycling, and presents guidelines for the property modification of PPs through foaming, filling and reinforcing with respect to target applications. Special attention is paid to descriptions and models of properties as a function of morphological variables. Last but not least, the book suggests potential practical applications of PP-based systems, especially in the packaging, appliances, building/construction, textile and automotive sectors. Each chapter, written by internationally respected scientists, reflects the current state-of-art in the respective field and offers a vital source of information for students, researchers and engineers interested in the morphology, properties, testing and modeling of PP and PP-based systems. The content is indispensable to the appropriate application of PPs and related composites.
Author : Andre Berger
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book Numerical Modelling of Composite Materials Based on a Combined Manufacturing-crash Simulation written by Andre Berger and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ivelin Ivanov
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (57 download)
Download or read book Method Development for Finite Element Impact Simulations of Composite Materials written by Ivelin Ivanov and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulations of structural impact utilizing explicit finite element codes have high requirements for computational efficiency. Woven fabric composites have high impact resistance and toughness but complex microstructure. A micro-mechanical model of woven fabric composites is developed here. The geometrical simplifications and the low discretization of the microstructure lead to computational efficiency. The model is based on the stiffness homogenization technique. The elastic property prediction of the model is in good agreement with the experimental data. A computationally efficient fiber reorientation technique is developed and applied to unidirectional composites. An investigation of the effect of the fiber reorientation on the elastic properties of the woven composite model is carried out. The reorientation technique, material non-linearity, and stiffness degradation are implemented in progressive failure model development. The model is used in structure survivability simulations. Loosely woven neat fabrics of high modulus fibers are used as protectors against impacting bodies because of their flexibility and high strength. The homogenization and fiber reorientation techniques are implemented in a loosely woven fabric model. The model is validated in ballistic impact simulations and demonstrates reasonable behavior in airbag inflation simulations. The viscoelasticity of polymeric materials increases their strength and Young's modulus during impact. The viscoelasticity is included in another model of loosely woven fabrics. The model is based on a mechanism representing the crimped yarns of the fabric. The viscoelastic model of loosely woven fabrics is validated in ballistic impact simulations. The viscoelasticity of the fibers, the viscoplasticity of the matrix material and the progressive damage with strain softening are essential for energy dissipation in structure crashworthiness simulations. They are implemented in another model of woven fabric composites based on the same micro-mechanics but using simple strain and stress transformation. The model is validated by comparison with experimental strain-rate dependence tests and impact simulations. The strain softening causes strain localization and severe mesh sensitivity of finite element simulations. The strain gradient method is implemented in high order elements to remove the mesh sensitivity. Collapsible high order shell element is developed for impact simulations of thin walled structures when strain-softening material models are used.
Author : Lucas F. M. da Silva
Publisher : Springer
ISBN 13 : 9783642359422
Total Pages : 1543 pages
Book Rating : 4.3/5 (594 download)
Download or read book Handbook of Adhesion Technology written by Lucas F. M. da Silva and published by Springer. This book was released on 2021-01-14 with total page 1543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adhesives have been used for thousands of years, but until 100 years ago, the vast majority was from natural products such as bones, skins, fish, milk, and plants. Since about 1900, adhesives based on synthetic polymers have been introduced, and today, there are many industrial uses of adhesives and sealants. It is difficult to imagine a product—in the home, in industry, in transportation, or anywhere else for that matter—that does not use adhesives or sealants in some manner. The Handbook of Adhesion Technology is intended to be the definitive reference in the field of adhesion. Essential information is provided for all those concerned with the adhesion phenomenon. Adhesion is a phenomenon of interest in diverse scientific disciplines and of importance in a wide range of technologies. Therefore, this handbook includes the background science (physics, chemistry and materials science), engineering aspects of adhesion and industry specific applications. It is arranged in a user-friendly format with ten main sections: theory of adhesion, surface treatments, adhesive and sealant materials, testing of adhesive properties, joint design, durability, manufacture, quality control, applications and emerging areas. Each section contains about five chapters written by internationally renowned authors who are authorities in their fields. This book is intended to be a reference for people needing a quick, but authoritative, description of topics in the field of adhesion and the practical use of adhesives and sealants. Scientists and engineers of many different backgrounds who need to have an understanding of various aspects of adhesion technology will find it highly valuable. These will include those working in research or design, as well as others involved with marketing services. Graduate students in materials, processes and manufacturing will also want to consult it.
Author : George Kellie
Publisher : Woodhead Publishing
ISBN 13 : 0081005849
Total Pages : 530 pages
Book Rating : 4.0/5 (81 download)
Download or read book Advances in Technical Nonwovens written by George Kellie and published by Woodhead Publishing. This book was released on 2016-05-17 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Technical Nonwovens presents the latest information on the nonwovens industry, a dynamic and fast-growing industry with recent technological innovations that are leading to the development of novel end-use applications. The book reviews key developments in technical nonwoven manufacturing, specialist materials, and applications, with Part One covering important developments in materials and manufacturing technologies, including chapters devoted to fibers for technical nonwovens, the use of green recycled and biopolymer materials, and the application of nanofibres. The testing of nonwoven properties and the specialist area of composite nonwovens are also reviewed, with Part Two offering a detailed and wide-ranging overview of the many applications of technical nonwovens that includes chapters on automotive textiles, filtration, energy applications, geo- and agrotextiles, construction, furnishing, packaging and medical and hygiene products. Provides systematic coverage of trends, developments, and new technology in the field of technical nonwovens Focuses on the needs of the nonwovens industry with a clear emphasis on applied technology Contains contributions from an international team of authors edited by an expert in the field Offers a detailed and wide-ranging overview of the many applications of technical nonwovens that includes chapters on automotive textiles, filtration, energy applications, geo- and agrotextiles, and more
Author : A C Long
Publisher : CRC Press
ISBN 13 : 9780849325939
Total Pages : 504 pages
Book Rating : 4.3/5 (259 download)
Download or read book Design and Manufacture of Textile Composites written by A C Long and published by CRC Press. This book was released on 2006-01-05 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Textile composites encompass a rather narrow range of materials, based on three-dimensional reinforcements produced using specialist equipment. This book describes the design, manufacture and applications of textile composites. The intention is to describe the broad range of polymer composite materials with textile reinforcements, from woven and non-crimp commodity fabrics to 3-D textiles and their applications. The book gives particular attention to the modelling of textile structures, composites manufacturing methods, and subsequent component performance. This practical book is an invaluable guide for manufacturers of polymer composite components, end-users and designers, structural materials researchers, and textile manufacturers involved in the development of new products with textile composites.
Author : X-T. Pham
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (961 download)
Download or read book Modeling of Forming of Fabric-Reinforced Thermoplastic Composites written by X-T. Pham and published by . This book was released on 2000 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roy W. Buckley
Publisher : iSmithers Rapra Publishing
ISBN 13 : 9781859573952
Total Pages : 144 pages
Book Rating : 4.5/5 (739 download)
Download or read book Polymer Enhancement of Technical Textiles written by Roy W. Buckley and published by iSmithers Rapra Publishing. This book was released on 2003 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical d104iles are high performance speciality materials. Applications are found in inflatable structures, tents, as reinforcement in composites for construction, as body armour and vehicle protection, in filters, as a base for flexible printed circuits, hose, conveyor belts and tyres. Polymer Enhancement of Technical d104iles examines the potential for these materials. The review is accompanied by around 400 abstracts from papers and books in the Rapra Polymer Library database.
Author : Frédéric Hallé
Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.:/5 (41 download)
Download or read book Computer Simulation of Thermoplastic Composites Forming written by Frédéric Hallé and published by . This book was released on 1998 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
