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A Model For Low Density Foams
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Book Synopsis Low density cellular plastics by : N.C. Hilyard
Download or read book Low density cellular plastics written by N.C. Hilyard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foams are gas filled integral structures in which the gas is finely dispersed throughout acontinuouslyconnected solid phase. The bulk density is usually substantially lower than that of the solid component, and for the foams which form the focus for this book the volume fraction of the gas phase is considerably greater than 0.5 and in most instances in excess of 0.9. Many ofthe materials encountered in every day experience, such as bread, plants and trees, structural materials for buildings, comfort materials for domestic and automotive seating, shock absorbers or car bumpers and materials for noise control, have one thing in common - the cellular nature of their physical structure. Whyare thesestructuressoimportantin the naturaland man-made world? The reasons are both technical and commercial. From a technical viewpoint cellular materials offer: 1. high specific stiffness and strength - making them suitable for structural applications; 2. closeto idealenergymanagement - hencetheir useinthermalandacoustic insulation, vibration damping, acoustic absorption and shock mitigation; and 3. comfort - hence their use for domestic and automotive seating.
Book Synopsis A Phenomenological Constitutive Model for Low Density Polyurethane Foams by : Michael K. Neilsen
Download or read book A Phenomenological Constitutive Model for Low Density Polyurethane Foams written by Michael K. Neilsen and published by . This book was released on 1987 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Model for Low-density Foams by : Luis Diego Artavia
Download or read book A Model for Low-density Foams written by Luis Diego Artavia and published by . This book was released on 1991 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling of the Mechanical Properties of Low-density Foams by : Vladimir Shulmeister
Download or read book Modelling of the Mechanical Properties of Low-density Foams written by Vladimir Shulmeister and published by . This book was released on 1997 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymer Foams Handbook by : Nigel Mills
Download or read book Polymer Foams Handbook written by Nigel Mills and published by Butterworth-Heinemann. This book was released on 2007-03-23 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: From crash helmets to packaging, this is the complete guide to understanding, selecting, processing and working with polymer foams.
Book Synopsis A Phenomenological Constitutive Model for Low Density Polyurethane Foams by :
Download or read book A Phenomenological Constitutive Model for Low Density Polyurethane Foams written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results from a series of hydrostatic and triaxial compression tests which were performed on polyurethane foams are presented in this report. These tests indicate that the volumetric and deviatoric parts of the foam behavior are strongly coupled. This coupling behavior could not be captured with any of several commonly used plasticity models. Thus, a new constitutive model was developed. This new model was based on a decomposition of the foam response into two parts: (1) response of the polymer skeleton, and (2) response of the air inside the cells. The air contribution was completely volumetric. The new constitutive model was implemented in two finite element codes, SANCHO and PRONTO. Results from a series of analyses completed with these codes indicated that the new constitutive model captured all of the foam behaviors that had been observed in the experiments. Finally, a typical dynamic problem was analyzed using the new constitutive model and other constitutive models to demonstrate differences between the models. Results from this series of analyses indicated that the new constitutive model generated displacement and acceleration predictions that were between predictions obtained using the other models. This result was expected. 9 refs., 45 figs., 4 tabs.
Book Synopsis Modeling of Dimensional Stability in Low Density Polyethylene Foams by : Kevin Lee
Download or read book Modeling of Dimensional Stability in Low Density Polyethylene Foams written by Kevin Lee and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strategies for Producing Microcellular Low Density Foams from Polyolefin Materials by : Robert P. Lee
Download or read book Strategies for Producing Microcellular Low Density Foams from Polyolefin Materials written by Robert P. Lee and published by . This book was released on 2003 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radiative Transfer in Low-density, Low-Z Foam by : Gregory A. Rochau
Download or read book Radiative Transfer in Low-density, Low-Z Foam written by Gregory A. Rochau and published by . This book was released on 2003 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Low Density Flexible Polyurethane Foams Filled with Nano-, Micro-, and Macro-sized Fillers by : Sathyam Bharadwaj-Somaskandan
Download or read book Study of Low Density Flexible Polyurethane Foams Filled with Nano-, Micro-, and Macro-sized Fillers written by Sathyam Bharadwaj-Somaskandan and published by . This book was released on 2001 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Density, Microcellular Foams, Preparation, and Articles by :
Download or read book Low Density, Microcellular Foams, Preparation, and Articles written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A microcellular low density foam of poly(4-methyl-1-pentene) which is particularly useful for forming targets for inertial confinement fusion has been developed. Articles made from the foam have been machined to tolerances of 0.0001 inch, although the densities of the fragile foam are low (about 10 to about 100 mg/cc) and the cell sizes are small (about 10 to about 30 .mu.m). Methods for forming the foam and articles are given; and the yield strength of the foam of the invention is higher than was obtained in other structures of this same material.
Book Synopsis Flexible Polyurethane Foams by : Chris Defonseka
Download or read book Flexible Polyurethane Foams written by Chris Defonseka and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-08-05 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flexible and viscoelastic polyurethane foams have enormous potential as viable business ventures and have replaced many traditional materials used in everyday life. This book describes the chemistry of flexible and viscoelastic polyurethane foams as well as calculations and formulating methodology for quality production. The author presents detailed information on foam manufacturing, based on over 45 years of hands-on industry experience.
Book Synopsis Low Density Foams for ICF and HED Targets by :
Download or read book Low Density Foams for ICF and HED Targets written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexible Polyurethane Foams by : G. Woods
Download or read book Flexible Polyurethane Foams written by G. Woods and published by Springer. This book was released on 1982 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-density, Salt-loaded Foams by : J. A. Rinde
Download or read book Low-density, Salt-loaded Foams written by J. A. Rinde and published by . This book was released on 1979 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Volatiles Present in Low Density Polyurethane Foams by : T. E. Jensen
Download or read book Volatiles Present in Low Density Polyurethane Foams written by T. E. Jensen and published by . This book was released on 1987 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Multiphase Model for Shock-induced Flow in Low Density Foam by :
Download or read book A Multiphase Model for Shock-induced Flow in Low Density Foam written by and published by . This book was released on 1993 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multiphase mixture model is applied to describe shocked-induced flow in deformable low-density foam. This model includes interphase drag and heat transfer and all phases are treated as compressible. Volume fraction is represented as an independent kinematic variable and the entropy inequality suggests a thermodynamically-admissable evolutionary equation to describe rate-dependent compaction. This multiphase model has been applied to shock tube experiments conducted by B.W. Skews and colleagues in the study of normal shock impingement on a wall-supported low density porous layer. Numerical solution of the multiphase flow equations employs a high resolution adaptive finite element method which accurately resolves contact surfaces and shock interactions. Additional studies are presented in an investigation of the effect of initial gas pressure in the foam layer, the shock interaction on multiple layers of foam and the shock- induced flow in an unsupported foam layer.
