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Author : Per-Erik Austrell
Publisher :
ISBN 13 :
Total Pages : 75 pages
Book Rating : 4.:/5 (187 download)
Download or read book Hyperelastic Constants for Carbon-black-filled Rubber Vulcanizates written by Per-Erik Austrell and published by . This book was released on 1994 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (924 download)
Download or read book Mechanical Properties of Carbon-black-filled Rubber Vulcanizates written by and published by . This book was released on 1996 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nere Gil-Negrete
Publisher : CRC Press
ISBN 13 : 1138000728
Total Pages : 734 pages
Book Rating : 4.1/5 (38 download)
Download or read book Constitutive Models for Rubber VIII written by Nere Gil-Negrete and published by CRC Press. This book was released on 2013-06-03 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their unique properties, rubber materials are found in multiple engineering applications such as tires, engine mounts, shock absorbers, flexible joints, seals, etc. Nevertheless, the complex nature of the behavior of such material makes it difficult to accurately model and predict the performance of these units. The challenge to correctly reproduce the observed characteristics of rubber elements necessitates detailed experimental investigations, development of accurate constitutive models, validation of techniques to identify material parameters and efficient numerical methods. Aspects regarding fatigue and damage in elastomers are not to be left aside, as they influence the durability of the products. State-of-the-art technology in terms of constitutive modeling, numerical implementation, damage and fatigue resistance are strongly represented in these Proceedings, along with insights into advanced elastomers to be used in novel applications. Topics included in this volume are: Ageing, Friction and abrasion, Adhesion, Swelling, Continuum mechanical models and numerical implementation, Hyperelasticity, Micro-mechanical approaches, Fracture and fatigue, Mullins effect, Strain induced crystallization, Thermal effects, Reinforcement and vulcanization, Design and applications, Smart elastomers. Constitutive Models for Rubber VIII is of interest not only for undergraduates, postgraduates, academics and researchers in the discipline, but also for all those design and development engineers in the industry.
Author : J. Busfield
Publisher : CRC Press
ISBN 13 : 9789058095664
Total Pages : 468 pages
Book Rating : 4.0/5 (956 download)
Download or read book Constitutive Models for Rubber III written by J. Busfield and published by CRC Press. This book was released on 2003-01-01 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in the modelling of rubber are collated in this volume, including not only stress-strain behaviour and the use of the large strain finite element method for simulation, but also fatigue, fracture, filler reinforcement, dynamic properties and the effects of ageing.
Author : Robert M. Hackett
Publisher : Springer
ISBN 13 : 3319232738
Total Pages : 182 pages
Book Rating : 4.3/5 (192 download)
Download or read book Hyperelasticity Primer written by Robert M. Hackett and published by Springer. This book was released on 2015-09-30 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the subject of hyperelasticity in a concise manner mainly directed to students of solid mechanics who have a familiarity with continuum mechanics. It focuses on important introductory topics in the field of nonlinear material behavior and presents a number of example problems and solutions to greatly aid the student in mastering the difficulty of the subject and gaining necessary insight. Professor Hackett delineates the concepts and applications of hyperelasticity in such a way that a new student of the subject can absorb the intricate details without having to wade through excessively complicated formulations. The book further presents significant review material on intricately related subjects such as tensor calculus and introduces some new formulations.
Author : Bertrand Huneau
Publisher : CRC Press
ISBN 13 : 1000627772
Total Pages : 620 pages
Book Rating : 4.0/5 (6 download)
Download or read book Constitutive Models for Rubber XI written by Bertrand Huneau and published by CRC Press. This book was released on 2019-06-07 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constitutive Models for Rubber XI is a comprehensive compilation of both the oral and poster contributions to the European Conference on Constitutive Models for Rubber. This 11th edition, held in Nantes (France) 25-27th June 2019, is the occasion to celebrate the 20th anniversary of the ECCMR series. Around 100 contributions reflect the state-of-the-art in the mechanics of elastomers. They cover the fields of: Material testing Constitutive modelling and finite element implementation Micromechanical aspects, and Durability (failure, fatigue and ageing) Constitutive Models for Rubber XI is of interest for developers and researchers involved in the rubber processing and CAE software industries, as well as for academics in nearly all disciplines of elastomer mechanics and technology.
Author : Adeyemi Adepetun
Publisher :
ISBN 13 :
Total Pages : 299 pages
Book Rating : 4.:/5 (913 download)
Download or read book Effect of Carbon Black Loading and Temperature on Cut Growth in N990-filled Natural Rubber Vulcanizates written by Adeyemi Adepetun and published by . This book was released on 2011 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tensile and tear properties of edge-cut specimens of natural rubber vulcanizates containing varying amounts of a coarse (particle size: 250 nm, surface area: 13 m2/cc) carbon black (N990) were determined at different temperatures. The properties of these vulcanizates at 25°C were compared with those determined by other researchers that contained N115 (particle size: 27 nm, surface area: 200 m2/cc) and N660 black (particle size: 55 nm, surface area: 63 m2/cc). At low carbon black loadings (6-12 phr), N990 black gave a higher tear strength than that with the finer N115 and N660, but, the converse was true at higher carbon black loadings (25-75 phr)! Multiple cracks at the tip of an edge-cut were first observed at 55 phr of N990 while 18 phr and 40 phr have been reported previously for N115 and N660, respectively. Furthermore, unlike in the case of the N115- and N660- vulcanizates, multiple crack formation in edge-cut N990 samples did not give much reinforcement; even a vulcanizate with 100 phr loading of N990 was only marginally stronger than the gum vulcanizate at all the cut depths. For a given carbon black loading, crack complexity generally increased with increase in temperature, while tear resistance decreased.
Author : Gerard Kraus
Publisher :
ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.3/5 (91 download)
Download or read book Reinforcement of Elastomers written by Gerard Kraus and published by . This book was released on 1965 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Boast
Publisher :
ISBN 13 :
Total Pages : 304 pages
Book Rating : 4.3/5 (91 download)
Download or read book Finite Element Analysis of Elastomers written by David Boast and published by . This book was released on 1999 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading researchers and practitioners, Finite Element Analysis of Elastomers blends established knowledge in this important area with up-to-date research topics, practical hints and thought-provoking new ideas. The Editors, have compiled contributions by leading researchers and practitioners in finite element analysis (FEA): the result is an authoritative and agenda-setting volume. Finite element modelling can only be as good as the constitutive laws (material models) used, the means of obtaining and fitting the data for those models, and the accuracy of the boundary conditions. (The latter is of particular importance in cases of contact.) All three questions recieve particular attention in this book, as do aspects such as the interpretation and accuracy of FE outputs, with many practical examples being given. There is a short section on fatigue and failure, where particular concerns and approaches in this challenging area are discussed. Comprehensive coverage is given to particular issues concerning the problems of working with real elastomers, especially filled materials. Key features include: Constitutive laws for hyperelastic and inelastic aspects of behaviour Appropriate test methods Curve fitting to obtain constants for constitutive laws Interpretation of finite element results Modelling of crack growth Example applications.
Author : Al Dorfmann
Publisher : CRC Press
ISBN 13 : 9789058091130
Total Pages : 334 pages
Book Rating : 4.0/5 (911 download)
Download or read book Constitutive Models for Rubber written by Al Dorfmann and published by CRC Press. This book was released on 1999-01-01 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text aims to enable the experience accumulated by engineers and the research community in materials science, continuum mechanics and applied mathematics to be shared. In this way, the design and analysis of rubber components using the Finite Element Method should be enhanced.
Author : Mohd Faisal Ahmad Shafawi
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (953 download)
Download or read book Effect of Carbon Black Loading on the Mechanical Properties of Rubber Vulcanizates written by Mohd Faisal Ahmad Shafawi and published by . This book was released on 2010 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of filler loading on the tensile and elongation at break of SMR 10 using a sulphur vulcanization system was studied. Carbon black (N220) was used as the fillers and the loading range was from 10 to 40 phr. Two Roll Mill (Model LS-22005) and 25 Ton Hot Cold Molding Press (Model LS22025) used for mixing and molding press. Both equipments were supplied by Lotus Scientific. Tensile and elongation at break were determined using a Universal Testing Machine (Model 133004600771) operating at 20 mm/min. Results show that, elongation at break decreases, but tensile strength, increase with filler loading. This observation is attributed to the rubber-filler interphaseinteraction of carbon black and rubber.
Author : Philipp Laurens Rosendahl
Publisher : Springer Nature
ISBN 13 : 3658316055
Total Pages : 204 pages
Book Rating : 4.6/5 (583 download)
Download or read book From Bulk to Structural Failure: Fracture of Hyperelastic Materials written by Philipp Laurens Rosendahl and published by Springer Nature. This book was released on 2020-12-01 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates the fracture of nearly incompressible hyperelastic media. It covers the different characteristics of bulk material failure under dilatational or distortional loads and develops a unified description of the corresponding failure surface. It proposes a coupled strain and energy failure criterion for the assessment of notch-induced crack nucleation and presents a weak-interface-model that allows for efficient stress, strain and failure analyses of hyperelastic adhesive lap joints. Theoretical concepts for the measurement of fracture properties of nonlinear elastic materials are provided. The methodology is developed using two exemplary hyperelastic silicones, DOWSIL 993 Structural Glazing Sealant and DOWSIL Transparent Structural Silicone Adhesive, and is validated using large sets of experiments of different loading conditions.
Author : Shinzo Kohjiya
Publisher : Springer Nature
ISBN 13 : 9811537895
Total Pages : 193 pages
Book Rating : 4.8/5 (115 download)
Download or read book Reinforcement of Rubber written by Shinzo Kohjiya and published by Springer Nature. This book was released on 2020-04-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the most recent description of rubber reinforcement, focusing on the network-like structure formation of nanofiller in the rubber matrix under the presence of bound rubber. The resultant filler network is visualized by electron tomography applied to rubber. In the case of natural rubber, the self-reinforcement effect is uniquely functioning, and new template crystallization is suggested. Here, the crystallites are also believed to arrange themselves in a network-like manner. These results are of great use, particularly for engineers, in designing rubber reinforcement.
Author : Colin I. Mackenzie
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (62 download)
Download or read book Stress Relaxation of Carbon Black Loaded Rubber Vulcanizates written by Colin I. Mackenzie and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Guangzhuo Rong
Publisher :
ISBN 13 :
Total Pages : 243 pages
Book Rating : 4.:/5 (912 download)
Download or read book Tearing of Black-filled (N115) Natural Rubber Vulcanizates at Various Temperatures written by Guangzhuo Rong and published by . This book was released on 2011 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural rubber vulcanizates (NR) have high tear resistance, excellent flexibility and high resilience. All tires contain black-filled natural rubber compounds in the location (belt region) of maximum stress concentration. Edge-cut tensile specimens of gum natural rubber vulcanizates show an abrupt drop in strength at a critical cut size and an abrupt decrease of normal (no cut) tensile strength at a critical temperature. These effects are due to changes in bulk strain crystallization at small cut sizes or low temperatures. The addition of carbon black affects tearing; this depends on the type and concentration of black. Natural rubber vulcanizates filled with high concentrations carbon black have very high tear resistance. This is due to a high degree of crystallization around a cut tip. A series of natural rubber vulcanizates containing a very fine carbon black (N115, surface area: 123 m2/g) were torn at 25, 60 and 100°C. Amazingly, the addition of low concentrations of carbon black decreases the tear resistance at 25 and 60°C. Thus, there is a critical level of black needed for "reinforcement". This amount of carbon black is also the concentration for incipient bound rubber formation; a continuous filler network seems to be necessary for the onset of reinforcement. Tearing in the transition zone depends on temperature. At 100°C, black-filled natural rubber vulcanizates behave like amorphous vulcanizates; they show a steady increase in strength as carbon black content increases.
Author : Mohd Waqiyuddin Mohd Salleh
Publisher :
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4.:/5 (953 download)
Download or read book The Effect of Carbon Black Loadings on Tensile Strength of Rubber Vulcanizates written by Mohd Waqiyuddin Mohd Salleh and published by . This book was released on 2010 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, the effect of filler loadings (carbon black) on the tensile strength of SMR 10 was investigated. The carbon black grade was chosen N220 and the loading ranges were set 20, 40, 50, and 60 parts per hundred rubbers (phr). For the mixing and moulding process, the Two Roll Mill (Model LS-22005) and 25 Ton Hot Cold Molding Press (Model LS22025) was used which is supplied by Lotus Scientific. In order to determine the tensile strength values, a Universal Testing Machine (Model 133004600771) operating at 20 mm/min was used. It was found that the tensile strength increase with the increasing of carbon black loading until it reaches at the maximum interphase interaction between the polymer chains and filler. This observation is attributed to the rubber-filler interphase interaction of carbon black and rubber.
Author : Ximei Sun
Publisher :
ISBN 13 :
Total Pages : 295 pages
Book Rating : 4.:/5 (217 download)
Download or read book The Devulcanization of Unfilled and Carbon Black Filled Isoprene Rubber Vulcanizates by High Power Ultrasound written by Ximei Sun and published by . This book was released on 2007 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effects of ultrasound on virgin gum isoprene rubber (IR) and on the devulcanization of unfilled and carbon black (CB) filled IR were studied. Ultrasonic treatment altered the structure and properties of gum IR by creating low molecular weight tails which broadened the molecular weight distribution and improved processability. Ultrasonic devulcanization of IR vulcanizates resulted in a reduction of gel fraction and crosslink density. Increasing the ultrasonic amplitude yielded a further reduction, regardless of CB loading, in the IR vulcanizates. This is contrary to the previous work on natural rubber (NR), the natural counterpart of IR which showed a minimum gel fraction and crosslink density at an intermediate ultrasonic amplitude. The devulcanization of filled IR resulted in more main chain scission than in unfilled IR due to the immobility of bound rubber at the filler surface which leads to lower properties in revulcanized rubbers than in virgin rubber. Upon blending the devulcanized IR with virgin IR, properties comparable to those of virgin rubber were obtained at certain blending ratios. A cure kinetics model with reversion adequately predicted the evolution of state of cure in curing and reversion stages under isothermal and non-isothermal conditions. The higher reversion observed in filled IR than in unfilled IR was consistant with the difference of reversion rate constant obtained in simulation. NMR proton transverse relaxation technique was unable to differentiate the contribution of short component mobility between physically entangled (heavy sol) and chemically crosslinked (gel) networks. Ultrasound severed both the chemical crosslinks and the main chain, creating dangling chain ends, with no generation of additional fragments of oligomeric species. Simulation of network structures using the Dobson-Gordon theory of network statistics indicated crosslinks were easier to break than main chains under ultrasonic exposure. Unfilled IR and NR had similar rate constant ratios of main chain scission and crosslink rupture. An increase of CB loading increased this ratio for both IR and NR with higher ratio in IR. The addition of processing oil in the filled IR compounds reduced this ratio."--Abstract.
