Author: Michael Philip PetrichPublisher:
ISBN:
Category :
Languages : en
Pages : 438
Book Description
The Effect of Flow-induced Structure on the Rheology of Fiber Suspensions
Author: Michael Philip PetrichPublisher:
ISBN:
Category :
Languages : en
Pages : 438
Book Description
Flow-Induced Alignment in Composite Materials
Author: T.D. PapathanasiouPublisher: Woodhead Publishing
ISBN: 0128185759
Category : Technology & Engineering
Languages : en
Pages : 399
Book Description
The purpose of aligning short fibers in a fiber-reinforced material is to improve the mechanical properties of the resulting composite. Aligning the fibers, generally in a preferred direction, allows them to contribute as much as possible to reinforcing the material. The first edition of this book detailed, in a single volume, the science, processing, applications, characterization and properties of composite materials reinforced with short fibers that have been orientated in a preferred direction by flows arising during processing. The technology of fiber-reinforced composites is continually evolving and this new edition provides timely and much needed information about this important class of engineering materials. Each of the original chapters have been brought fully up-to-date and new developments such as: the advent of nano-composites and the issues relating to their alignment; the wider use of long-fiber composites and the appearance of models able to capture their orientation during flow; the wider use of flows in micro-channels in the context of composites fabrication; and the increase in computing power, which has made relevant simulations (especially coupling flow kinematics to fiber content and orientation) much easier to perform are all covered in detail. The book will be an essential up-to-date reference resource for materials scientists, students, and engineers who are working in the relevant areas of particulate composites, short fiber-reinforced composites or nanocomposites. - Presents recent progress on flow-induced alignment, modelling and design of fiber and particulate filled polymer composites - Discusses important advances such as alignment of CNTs in polymer nanocomposites and molecular alignment of polymers induced by the injection molding process in the presence of fillers such as short fibers - Presents fiber interaction/diffusion modelling and also the fiber flexure/breakage models
Rheology of Non-spherical Particle Suspensions
Author: Francisco ChinestaPublisher: Elsevier
ISBN: 0081008120
Category : Science
Languages : en
Pages : 398
Book Description
This book provides a review of the current understanding of the behavior of non-spherical particle suspensions providing experimental results, rheological models and numerical modeling. In recent years, new models have been developed for suspension rheology and as a result applications for nanocomposites have increased. The authors tackle issues within experimental, model and numerical simulations of the behavior of particle suspensions. Applications of non-spherical particle suspension rheology are widespread and can be found in organic matrix composites, nanocomposites, biocomposites, fiber-filled fresh concrete flow, blood and biologic fluids. - Understand how to model and predict the final microstructure and properties of particle suspensions - Explores nano, micro, meso and macro scales - Rheology, thermomechanical and electromagnetic physics are discussed
Dilute Non-Newtonian Particle Suspension Rheology and Microstructure
Author: Eric F. LeePublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The study of polymeric particle suspensions has been the subject of a number of past experimental and theoretical studies. However, fundamental questions about suspension rheology and shear flow-induced microstructural effects remain. First, a quasi-analytical study is presented that gives the first theory-based predictions on the effects of finite polymer relaxation time on rheological properties. In a constant viscosity, low polymer concentration fluid, the addition of particles is found to have a strong shear thickening effect on the first normal stress difference coefficient and the shear viscosity. In contrast, the second normal stress difference coefficient is shear thickening at low shear but shear thinning at higher shear. Next, an analytical and computational study is presented that sheds light on the widely studied phenomenon of cross-streamline particle migration in Poiseuille flow. Particles are found to experience a cross-stream force toward the channel center when they are freely suspended in the fluid, while they experience a crossstream force toward the wall when they are fixed in place.
Simulations of a Torqued Fiber in a Fiber Suspension
Author: Imttiaz AliRheology and Structure of Flocculated Suspensions
Author: Reinaldo Conrado NavarretePublisher:
ISBN:
Category :
Languages : en
Pages : 362
Book Description
Assessment of the State-of-the-Art for Process Monitoring Sensors for Polymer Composites
Author: Donald HunstonPublisher: DIANE Publishing
ISBN: 0941375986
Category :
Languages : en
Pages : 151
Book Description
Modeling the Flow-induced Anisotropic Effective Viscosity of Fiber Suspensions by Mean-field and Full-field Homogenization
Author: Róbert BertótiRheology of Fiber Suspensions and Fiber Orientation Analysis in Flow Processes
Author: M. Cengiz AltanPublisher:
ISBN:
Category : Multiphase flow
Languages : en
Pages : 578
Book Description
Polymer Processing
Author: Donald G. BairdPublisher: John Wiley & Sons
ISBN: 1118354729
Category : Technology & Engineering
Languages : en
Pages : 422
Book Description
Fundamental concepts coupled with practical, step-by-step guidance With its emphasis on core principles, this text equips readers with the skills and knowledge to design the many processes needed to safely and successfully manufacture thermoplastic parts. The first half of the text sets forth the general theory and concepts underlying polymer processing, such as the viscoelastic response of polymeric fluids and diffusion and mass transfer. Next, the text explores specific practical aspects of polymer processing, including mixing, extrusion dies, and post-die processing. By addressing a broad range of design issues and methods, the authors demonstrate how to solve most common processing problems. This Second Edition of the highly acclaimed Polymer Processing has been thoroughly updated to reflect current polymer processing issues and practices. New areas of coverage include: Micro-injection molding to produce objects weighing a fraction of a gram, such as miniature gears and biomedical devices New chapter dedicated to the recycling of thermoplastics and the processing of renewable polymers Life-cycle assessment, a systematic method for determining whether recycling is appropriate and which form of recycling is optimal Rheology of polymers containing fibers Chapters feature problem sets, enabling readers to assess and reinforce their knowledge as they progress through the text. There are also special design problems throughout the text that reflect real-world polymer processing issues. A companion website features numerical subroutines as well as guidance for using MATLAB®, IMSL®, and Excel to solve the sample problems from the text. By providing both underlying theory and practical step-by-step guidance, Polymer Processing is recommended for students in chemical, mechanical, materials, and polymer engineering.