Download or read book Effects of Contact Load on Fretting Fatigue Behavior of IN 100 at Elevated Temperature written by Alfred G. Traylor and published by . This book was released on 2009 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Elevated Temperature on Fretting Fatigue Behavior of Nickel Alloy IN 100 written by John Ownby and published by . This book was released on 2008 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of a Variable Contact Load on Fretting Fatigue Behavior of Ti 6Al 4V written by Andrew J. Jutte and published by . This book was released on 2004-03 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of a variable contact load on the high cycle fretting fatigue behavior of Ti-6AL-4V were investigated. Experimental tests were performed using a new test setup capable of applying a contact load varying in amplitude, frequency, and phase and independently measuring shear forces on opposite sides of a specimen. Finite element analysis (FEA) of experimental and idealized loading conditions was performed and local mechanistic parameters and the Modified Shear Stress Range (MSSR) fatigue parameter were determined. Correlations between contact width, slip amplitude, fatigue life and a variable contact load were established with variable contact loading shown to have a damaging effect. Predicted values of crack location and orientation using the MSSR parameter were verified experimentally. The MSSR parameter unsuccessfully predicted fatigue life for variable contact loads. A new formulation of the MSSR parameter is proposed.
Download or read book Advanced Tribology written by Jianbin Luo and published by Springer Science & Business Media. This book was released on 2010-07-16 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Advanced Tribology" is the proceedings of the 5th China International Symposium on Tribology (held every four years) and the 1st International Tribology Symposium of IFToMM, held in Beijing 24th-27th September 2008. It contains seven parts: lubrication; friction and wear; micro/nano-tribology; tribology of coatings, surface and interface; biotribology; tribo-chemistry; industry tribology. The book reflects the recent progress in the fields such as lubrication, friction and wear, coatings, and precision manufacture etc. in the world. The book is intended for researchers, engineers and graduate students in the field of tribology, lubrication, mechanical production and industrial design. The editors Jianbin Luo, Yonggang Meng, Tianmin Shao and Qian Zhao are all the professors at the State Key Lab of Tribology, Tsinghua University, Beijing.
Download or read book Fretting Fatigue written by David W. Hoeppner and published by ASTM International. This book was released on 2000 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes 36 of the 40 papers presented at the symposium, and a collection of six keynote papers providing background on the subject. Topics covered include parameter effects, environmental effects, crack nucleation, material and microstructural effects, damage analysis, fracture mechanic
Download or read book Fretting Fatigue written by Steven E. Kinyon and published by ASTM International. This book was released on 2003 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains 29 contributions drawn from the Third International Symposium on Fretting Fatigue held in Nagaoka, Japan in May 2001. Sections of the volume address fretting wear and crack initiation; fretting fatigue crack and damage; life prediction; fretting fatigue parameter effects; loading condition
Download or read book Fatigue written by John J. Burke and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army Materials and Mechanics Research Center in coop eration with the Materials Science Group of the Department of Chemical Engineering and Materials Science of Syracuse University has been conducting the Annual Sagamore Army Materials Research Conference since 1954. The specific purpose of these conferences has been to bring together scientists and engineers from academic institutions, industry and government who are uniquely qualified to explore in depth a subject of importance to the Department of Defense, the Army and the scientific community. These proceedings entitled, FATIGUE - ENVIRONMENT AND TEMPER ATURE EFFECT, address the overview of temperature and environmental effects of fatigue, room temperature environmental effects, high temperature and environmental effect - mechanisms, high tempera ture and environmental effect - mechanisms, materials and design-engineering applications. We wish to acknowledge the assistance of Messrs. Joseph Bernier and Dan McNaught of the Army Materials and Mechanics Research Center and Helen Brown DeMascio of Syracuse University throughout the stages of the conference planning and finally the publication of the book. The continued active interest and support of these conferences by Dr. E. Wright, Director of the Army Materials and Mechanics Research Center, is appreciated.
Download or read book Effect of Contact Pressure on Fretting Fatigue of High Strength Steel and Titanium Alloy written by N. Maruyama and published by . This book was released on 1992 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of contact pressure on fretting fatigue behavior has been studied using a high strength steel and a Ti-6Al-4V alloy. In steel, at higher stress amplitude, the fretting fatigue life decreased monotonously with increasing contact pressure. At lower stress amplitude, it exhibited a minimum at a low contact pressure and a maximum at an intermediate contact pressure, then decreased again and became constant at high contact pressures. The fretting fatigue strength at 107 cycles was high at an intermediate contact pressure. In titanium alloy, the fretting fatigue life showed a similar contact pressure dependence. The frictional force increased monotonously with increasing contact pressure. The initiation site of the main crack depended on the contact pressure and had a close relation to the width of stick region at the fretted area. The contact pressure dependence was discussed in terms of stress concentration at the fretted area.
Download or read book Effect of Contact Pad Geometry on Fretting Fatigue Behavior of High Strength Steel written by Y. Ochi and published by . This book was released on 2003 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of contact pad geometry on fretting fatigue behavior of high strength steel was examined by using the clamping double bridge pads system. In order to investigate the effects of bridge pad shapes, the fretting fatigue tests were carried out by using four types of bridge pad with different leg height h*. The fretting fatigue strength decreased with decreasing in the h*. Also, the stick area increased as increasing of the h*. The contact pressure distribution was measured by strain gauge and calculated by using a finite element method in order to investigate the effect of the pads leg height h*. The contact pressure concentrated in the inside on the contact surface where the main crack initiated. Two-stage tests were carried out in order to investigate the fretting fatigue damage. The two-stage test was performed to a certain cycles under fretting condition and then plain tests without fretting as removing the pads were continued.
Download or read book Engineering Plasticity and Its Applications from Nanoscale to Macroscale written by Hoon Huh and published by World Scientific. This book was released on 2009 with total page 925 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the Asia-Pacific Conference on Engineering Plasticity and Its Applications (AEPA) is to provide a free forum for exchanging ideas and introducing the latest research findings in the field of engineering plasticity. This conference is unique among the related conferences in that it provides a forum for all fields of plasticity so that multi-disciplinary research works are encouraged. This proceedings volume consists of papers presented at AEPA2008, and covers the following categories in all fields of engineering plasticity: constitutive modeling; damage, fracture, fatigue and failure; dynamic loading and crash dynamics; engineering applications and case studies; experimental and numerical techniques; molecular dynamics; nano, meso, micro and crystal plasticity; phase transformations; plastic instability and strain localization; plasticity in advanced materials; plasticity in materials processing technology; plasticity in tribology; porous, cellular and composite materials; structural plasticity; superplasticity; and time-dependent deformation. Ranging from nanoscale to macroscale applications of engineering plasticity, this book touches upon fields as diverse as mechanical engineering, materials science, physics, chemistry and civil engineering.
Download or read book Fretting Wear and Fretting Fatigue written by Tomasz Liskiewicz and published by Elsevier. This book was released on 2022-12-07 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fretting Wear and Fretting Fatigue: Fundamental Principles and Applications takes a combined mechanics and materials approach, providing readers with a fundamental understanding of fretting phenomena, related modeling and experimentation techniques, methods for mitigation, and robust examples of practical applications across an array of engineering disciplines. Sections cover the underpinning theories of fretting wear and fretting fatigue, delve into experimentation and modeling methods, and cover a broad array of applications of fretting fatigue and fretting wear, looking at its impacts in medical implants, suspension ropes, bearings, heating exchangers, electrical connectors, and more. - Covers theoretical fundamentals, modeling and experimentation techniques, and applications of fretting wear and fatigue - Takes a combined mechanics and materials approach - Discusses the differences and similarities between fretting wear and fretting fatigue as well as combined experimental and modeling methods - Covers applications including medical implants, heat exchangers, bearings, automotive components, gas turbines, and more
Download or read book Fatigue and Fracture Mechanices written by Steven R. Daniewicz and published by ASTM International. This book was released on 2005-09 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fretting Fatigue Behavior of Ti 6Al 4V Against Ti 6Al 4V Under Flat on Flat Contact with Blending Radii written by T. Nicholas and published by . This book was released on 2000 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted to evaluate fretting fatigue damage of Ti-6Al-4V under flat-on-flat contact at room temperature. Results were obtained to establish the fatigue limit of the material. Axial stresses necessary to fail specimens at 107 cycles for different contact radii, applied normal stresses, and stress ratios were evaluated to determine the baseline fretting fatigue behavior. Then, the effect of fretting fatigue on specimen life was quantified by conducting interrupted fretting tests for various load ratios and normal stresses followed by residual strength uniaxial fatigue tests. Fractography was used to characterize the nature of fretting damage. Results indicate that no degradation in fatigue limit is observed when the material is subjected to up to 10 percent of fretting fatigue life.
Download or read book Effects of Contact Load and Contact Curvature Radius of Cylinder Pad on Fretting Fatigue in High Strength Steel written by M. Sumita and published by . This book was released on 2000 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fretting fatigue of high strength steel was studied at various contact loads using bridge-type fretting cylindrical pads with various contact curvature radii. The fretting fatigue life showed a minimum at a certain contact load irrespective of the pad radius even though the frictional force increased monotonously with contact load. At a high contact load, the fretting fatigue life remained almost unchanged with a change in pad radius. At a low contact load, however, the fretting fatigue life increased with an increase in pad radius even though the frictional force was independent of the radius.
Download or read book Mechanics of Fretting Fatigue written by D.A. Hills and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Failures of many mechanical components in service result from fatigue. The cracks which grow may either originate from some pre-existing macroscopic defect, or, if the component is of high integrity but highly stressed, a region of localized stress concentration. In turn, such concentrators may be caused by some minute defect, such as a tiny inclusion, or inadvertent machining damage. Another source of surface damage which may exist between notionally 'bonded' components is associated with minute relative motion along the interface, brought about usually be cyclic tangential loading. Such fretting damage is quite insidious, and may lead to many kinds of problems such as wear, but it is its influence on the promotion of embryo cracks with which we are concerned here. When the presence of fretting is associated with decreased fatigue performance the effect is known as fretting fatigue. Fretting fatigue is a subject drawing equally on materials science and applied mechanics, but it is the intention in this book to concentrate attention entirely on the latter aspects, in a search for the quantification of the influence of fretting on both crack nucleation and propagation. There have been very few previous texts in this area, and the present volume seeks to cover five principal areas; (a) The modelling of contact problems including partial slip under tangentialloading, which produces the surface damage. (b) The modelling of short cracks by rigorous methods which deal effectively with steep stress gradients, kinking and closure. (c) The experimental simulation of fretting fatigue.
Download or read book High Temperature Fretting Fatigue Behavior in an XDTM base TiAl written by B. Pettersson and published by . This book was released on 2000 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The plain and fretting fatigue behavior was studied of a ?-base TiAl intermetallics at 675°C in air. he TiAl material was produced by the XDTM process and had a nominal composition of Ti-47Al-2Nb-2Mn+0.8vol%TiB2. The contact material was Inconel 718. The reduction of fatigue strength by fretting was very small (around 20%) compared to metallic materials (3060%). The plain and fretting fatigue S-N curves were flat, which resembled the behavior of ceramic materials. The flat S-N curves are corresponding to the very steep crack growth curve reported for TiAl-based materials containing TiB2. A fretting fatigue crack nucleated in the very late stage of fatigue life (later than 0.75Nf), while it is known to nucleate in the very early stage of fatigue life (less than few percent of Nf) for steels. The fatigue lifetimes of this material were suggested to be determined by the cycles needed for nucleation of a crack rather than by crack propagation.
Download or read book Wear of Materials written by Peter J. Blau and published by Elsevier. This book was released on 2003-10 with total page 1540 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 14th International Conference on Wear of Materials took place in Washington, DC, USA, 30 March - 3 April 2003. These proceedings contain over two-hundred peer reviewed papers containing the best research, technical developments and engineering case studies from around the world. Biomaterials and nano-tribology receive special attention in this collection reflecting the general trends in the field. Further highlights include a focus on the new generation of instrumentation to probe wear at increasingly small scales. Approximately ninety communications and case studies, a popular format for the academic community have also been included, enabling the inclusion of the most up-to-date research. Over 200 peer-reviewed papers including hot topics such as biomaterials and nano-tribology Keeping you up-to-date with the latest research from leading experts Includes communications and case studies
