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Experimental Investigation Of Crack Initiation In Face Centered Cubic Materials In The High And Very High Cycle Fatigue Regime
Download Experimental Investigation Of Crack Initiation In Face Centered Cubic Materials In The High And Very High Cycle Fatigue Regime full books in PDF, epub, and Kindle. Read online Experimental Investigation Of Crack Initiation In Face Centered Cubic Materials In The High And Very High Cycle Fatigue Regime ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Experimental Investigation of Crack Initiation in Face-Centered Cubic Materials in the High and Very High Cycle Fatigue Regime by : Straub, Thomas
Download or read book Experimental Investigation of Crack Initiation in Face-Centered Cubic Materials in the High and Very High Cycle Fatigue Regime written by Straub, Thomas and published by KIT Scientific Publishing. This book was released on 2016 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the fatigue mechanisms and crack initiation of Ni, Al and Cu on a small-scale in the Very High Cycle Fatigue regime by means of innovative fatigue experimentation. A novel custom-built resonant fatigue setup showed that the sample resonant frequency changes with increasing cycle number due to fatigue damage. Mechanisms such as slip band formation have been observed. Cyclic hardening, vacancy and oxidation formation may be considered as early fatigue mechanisms.
Book Synopsis Fatigue of Materials at Very High Numbers of Loading Cycles by : Hans-Jürgen Christ
Download or read book Fatigue of Materials at Very High Numbers of Loading Cycles written by Hans-Jürgen Christ and published by Springer. This book was released on 2018-11-19 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the final reports of the scientific projects funded within the DFG-SPP1466 and, hence, provides the reader with the possibility to familiarize with the leading edge of VHCF research. It draws a balance on the existing knowledge and its enhancement by the joint research action of the priority program. Three different material classes are dealt with: structural metallic materials, long-fiber-reinforced polymers and materials used in micro-electro-mechanical systems. The project topics address the development of suitable experimental techniques for high-frequency testing and damage monitoring, the characterization of damage mechanisms and damage evolution, the development of mechanism-based models and the transfer of the obtained knowledge and understanding into engineering regulations and applications.
Book Synopsis A novel micro-mechanical model for prediction of multiaxial high cycle fatigue at small scales by : Eslami, Reza
Download or read book A novel micro-mechanical model for prediction of multiaxial high cycle fatigue at small scales written by Eslami, Reza and published by KIT Scientific Publishing. This book was released on 2017-05-03 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The grain microstructure and damage mechanisms at the grain level are the key factors that influence fatigue of metals at small scales. This is addressed in this work by establishing a new micro-mechanical model for prediction of multiaxial high cycle fatigue (HCF) at a length scale of 5-100?m. The HCF model considers elasto-plastic behavior of metals at the grain level and microstructural parameters, specifically the grain size and the grain orientation.
Book Synopsis Microplasticity of idealized single crystalline Ag cantilevers characterized with methods of high resolution by : Wobrock, Mark
Download or read book Microplasticity of idealized single crystalline Ag cantilevers characterized with methods of high resolution written by Wobrock, Mark and published by KIT Scientific Publishing. This book was released on 2017-11-22 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single crystalline, μm-sized cantilevers are fabricated out of epitaxially grown Ag thin films by a lithography-based procedure and are deflected by a nanoindenter system. The microstructure of the plastically deformed cantile-vers is investigated using transmission Kikuchi diffraction (TKD) on the cantilever cross section. 3D discrete dislocation dynamics simulations (DDD) are performed for further analysis. A mechanism to explain the formation of dislocation networks upon loading is suggested.
Book Synopsis Safe, Supportive, and Inclusive Learning Environments for Young People in Crisis and Trauma by : Patty Towl
Download or read book Safe, Supportive, and Inclusive Learning Environments for Young People in Crisis and Trauma written by Patty Towl and published by Routledge. This book was released on 2020-06-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Children and young people from diverse populations are statistically more at risk of exclusion, however education providers can make a difference to all children and young persons’ learning outcomes no matter what their personal circumstances. To achieve this, not only must educators form closer and more authentic relationships with these children and their communities, but the governments that fund learning environments must also be prepared to provide adequate resourcing and training opportunities. Safe, Supportive, and Inclusive Learning Environments for Young People in Crisis and Trauma addresses both the general and specific issues that may prevent children and young people from diverse populations from being safe, supported, and included in learning environments. Some chapters focus on general factors that contribute to both inclusion and exclusion at early childhood and in formal school environments, while others present research-based best practice and practical advice to enable good education outcomes for indigenous, migrant, and LGBTQI children and those who experience mental health problems, drug misuse, and abuse. Lastly, the book includes information about how to negotiate and set up programmes that have been shown to be effective with communities that differ from the dominant culture. This book provides practitioners in education, health, and social work with information and practical advice on how to retain all children and young people in early childhood, formal school education, and tertiary settings.
Book Synopsis Micromechanical study on the deformation behaviour of directionally solidified NiAl-Cr eutectic composites by : Kumar, Amritesh
Download or read book Micromechanical study on the deformation behaviour of directionally solidified NiAl-Cr eutectic composites written by Kumar, Amritesh and published by KIT Scientific Publishing. This book was released on 2017-11-06 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiscale Modeling of Curing and Crack Propagation in Fiber-Reinforced Thermosets by : Schöller, Lukas
Download or read book Multiscale Modeling of Curing and Crack Propagation in Fiber-Reinforced Thermosets written by Schöller, Lukas and published by KIT Scientific Publishing. This book was released on 2024-03-15 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the production of fiber-reinforced thermosets, the resin material undergoes a reaction that can lead to damage. A two-stage polymerization reaction is modeled using molecular dynamics and evaluations of the system including a fiber surface are performed. In addition, a phase-field model for crack propagation in heterogeneous systems is derived. This model is able to predict crack growth where established models fail. Finally, the model is used to predict crack formation during curing.
Book Synopsis Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications by : Trauth, Anna
Download or read book Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications written by Trauth, Anna and published by KIT Scientific Publishing. This book was released on 2020-12-11 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this work is to significantly deepen the understanding of the material and the structural behaviour of continuous-discontinuous SMC composites, following a holistic approach to investigate microscopic aspects, macroscopic mechanical behaviour as well as failure evolution at the coupon, structure and component level. In addition, criteria to evaluate the effect of hybridisation are introduced and modelling approaches are presented and discussed.
Book Synopsis On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability by : Ganser, Markus
Download or read book On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability written by Ganser, Markus and published by KIT Scientific Publishing. This book was released on 2021-03-09 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid state batteries with a lithium metal electrode are considered the next generation of high energy battery technology. Unfortunately, lithium metal is prone to harmful protrusion or dendrite growth which causes dangerous cell failure. Within this work the problem of protrusion growth is tackled by deriving a novel electro-chemo-mechanical theory tailored for binary solid state batteries which is then used to discuss the impact of mechanics on interface stability by numerical studies.
Book Synopsis Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries by : Zhang, Tao
Download or read book Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries written by Zhang, Tao and published by KIT Scientific Publishing. This book was released on 2021-09-27 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the particle size and SOC dependent miscibility gap of the nanoscale insertion materials. Finally, we introduce the nonlocal species concentration theory, and show how the nonlocality influences the results.
Book Synopsis Characterization and Modeling of the Ratcheting Behavior of the Ferritic-Martensitic Steel P91 by : Zhang, Kuo
Download or read book Characterization and Modeling of the Ratcheting Behavior of the Ferritic-Martensitic Steel P91 written by Zhang, Kuo and published by KIT Scientific Publishing. This book was released on 2017-07-12 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the ratcheting-behavior of 9%Cr-1%Mo ferritic-martensitic steel is studied with uniaxial cyclic loading. To describe the ratcheting-behavior of this steel, a visco-plastic constitutive model with consideration of cyclic softening of Reduced Activation Ferritic Martensitic steels is further modified, based on the analysis of back stress.
Book Synopsis Structure evolution in tribological interfaces studied by multilayer model alloys by : Cihan, Ebru
Download or read book Structure evolution in tribological interfaces studied by multilayer model alloys written by Cihan, Ebru and published by KIT Scientific Publishing. This book was released on 2020-10-21 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies of deformation mechanisms of metals and alloys pioneer the better investigation of the friction and wear behavior of materials with well-defined initial microstructures. Within this scope, in this work, the effect of sub-surface deformations on the resulting friction and wear behavior has been searched by means of a systematic experimental study on Au-Ni metallic multilayer model alloy system.
Book Synopsis Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes by : Röhe, Maximilian
Download or read book Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes written by Röhe, Maximilian and published by KIT Scientific Publishing. This book was released on 2024-01-09 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the first simulation model of oxygen depolarized cathodes (ODC), which are silver catalyst-based gas diffusion electrodes, is presented that considers the phase equilibrium of the gas-liquid interface and structure-related inhomogeneities in electrolyte distribution. By means of the model it has been identified that mass transport of water and ions in the liquid phase is a crucial factor for electrode performance and how it is influenced by the electrode structure.
Book Synopsis Application of Data Mining and Machine Learning Methods to Industrial Heat Treatment Processes for Hardness Prediction by : Lingelbach, Yannick
Download or read book Application of Data Mining and Machine Learning Methods to Industrial Heat Treatment Processes for Hardness Prediction written by Lingelbach, Yannick and published by KIT Scientific Publishing. This book was released on 2024-07-24 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a data mining framework applied to industrial heattreatment (bainitization and case hardening) aiming to optimize processes and reduce costs. The framework analyses factors such as material, production line, and quality assessment for preprocessing, feature extraction, and drift corrections. Machine learning is employed to devise robust prediction strategies for hardness. Its implementation in an industry pilot demonstrates the economic benefits of the framework. - This work presents a data mining framework applied to industrial heattreatment (bainitization and case hardening) aiming to optimize processes and reduce costs. The framework analyses factors such as material, production line, and quality assessment for preprocessing, feature extraction, and drift corrections. Machine learning is employed to devise robust prediction strategies for hardness. Its implementation in an industry pilot demonstrates the economic benefits of the framework.
Book Synopsis Phase-field modeling of microstructural pattern formation in alloys and geological veins by : Ankit, Kumar
Download or read book Phase-field modeling of microstructural pattern formation in alloys and geological veins written by Ankit, Kumar and published by KIT Scientific Publishing. This book was released on 2016-05-31 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of high performance computing, the application areas of the phase-field method, traditionally used to numerically model the phase transformation in metals and alloys, have now spanned into geoscience. A systematic investigation of the two distinct scientific problems in consideration suggest a strong influence of interfacial energy on the natural and induced pattern formation in diffusion-controlled regime.
Book Synopsis Consequences of hydroxyl generation by the silica/water reaction - Part I: Diffusion and Swelling by : Fett, Theo
Download or read book Consequences of hydroxyl generation by the silica/water reaction - Part I: Diffusion and Swelling written by Fett, Theo and published by KIT Scientific Publishing. This book was released on 2022-07-11 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water diffusing into silica surfaces gives rise for several effectson diffusion behaviour and mechanical properties. Water added to silica glass increases its specific volume so that the silica expands near the surface. Mechanical boundary conditions give rise for compressive “swelling stresses”. This fact provides a tool for the interpretation of many experimental observations from literature.
Book Synopsis Deformation and Fracture Properties of the Soft Magnetic Composite Somaloy 700 3P on Different Length Scales by : Schwark, Tabea Gisela
Download or read book Deformation and Fracture Properties of the Soft Magnetic Composite Somaloy 700 3P on Different Length Scales written by Schwark, Tabea Gisela and published by KIT Scientific Publishing. This book was released on 2018-07-09 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soft Magnetic Composites (SMCs) typically consist of large iron particles coated with a fairly thin inorganic layer. The combination of soft particles with a brittle layer causes, however, a rather poor mechanical behaviour of the SMCs. The particle boundaries of the specific SMC Somaloy 700 3P can be classified into four different types according to the complexity of their layers. Tests on both micro- and macroscale showed that the particle-boundary interface is critical in terms of failure.
