A Novel Micro Mechanical Model For Prediction Of Multiaxial High Cycle Fatigue At Small Scales
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A Novel Micro Mechanical Model For Prediction Of Multiaxial High Cycle Fatigue At Small Scales
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Author : Eslami, Reza
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-05-03
A Novel Micro Mechanical Model For Prediction Of Multiaxial High Cycle Fatigue At Small Scales written by Eslami, Reza and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-03 with Technology (General) categories.
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.
A Novel Micro Mechanical Model For Prediction Of Multiaxial High Cycle Fatigue At Small Scales
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Author : Reza Eslami
language : en
Publisher:
Release Date : 2020-10-09
A Novel Micro Mechanical Model For Prediction Of Multiaxial High Cycle Fatigue At Small Scales written by Reza Eslami and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-09 with Science categories.
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. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Micromechanical Study On The Deformation Behaviour Of Directionally Solidified Nial Cr Eutectic Composites
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Author : Kumar, Amritesh
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-11-06
Micromechanical Study On The Deformation Behaviour Of Directionally Solidified Nial Cr Eutectic Composites written by Kumar, Amritesh and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-06 with categories.
Phase Field Modeling Of Phase Changes And Mechanical Stresses In Electrode Particles Of Secondary Batteries
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Author : Zhang, Tao
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-09-27
Phase Field Modeling Of Phase Changes And Mechanical Stresses In Electrode Particles Of Secondary Batteries written by Zhang, Tao and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-27 with Technology & Engineering categories.
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.
On The Electro Chemo Mechanical Coupling In Solid State Batteries And Its Impact On Morphological Interface Stability
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Author : Ganser, Markus
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-03-09
On The Electro Chemo Mechanical Coupling In Solid State Batteries And Its Impact On Morphological Interface Stability written by Ganser, Markus and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-09 with Technology & Engineering categories.
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.
Structure Evolution In Tribological Interfaces Studied By Multilayer Model Alloys
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Author : Cihan, Ebru
language : en
Publisher: KIT Scientific Publishing
Release Date : 2020-10-21
Structure Evolution In Tribological Interfaces Studied By Multilayer Model Alloys written by Cihan, Ebru and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-21 with Technology & Engineering categories.
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.
Dynamic Model Based Analysis Of Oxygen Reduction Reaction In Gas Diffusion Electrodes
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Author : Röhe, Maximilian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-01-09
Dynamic Model Based Analysis Of Oxygen Reduction Reaction In Gas Diffusion Electrodes written by Röhe, Maximilian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-01-09 with categories.
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.
Modeling Transport Properties And Electrochemical Performance Of Hierarchically Structured Lithium Ion Battery Cathodes Using Resistor Networks And Mathematical Half Cell Models
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Author : Birkholz, Oleg
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-10-05
Modeling Transport Properties And Electrochemical Performance Of Hierarchically Structured Lithium Ion Battery Cathodes Using Resistor Networks And Mathematical Half Cell Models written by Birkholz, Oleg and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-05 with Science categories.
Hierarchically structured active materials in electrodes of lithium-ion cells are promising candidates for increasing gravimetric energy density and improving rate capability of the system. To investigate the influence of cathode structures on the performance of the whole cell, efficient tools for calculating effective transport properties of granular systems are developed and their influence on the electrochemical performance is investigated in specially adapted cell models.
Microplasticity Of Idealized Single Crystalline Ag Cantilevers Characterized With Methods Of High Resolution
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Author : Wobrock, Mark
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-11-22
Microplasticity Of Idealized Single Crystalline Ag Cantilevers Characterized With Methods Of High Resolution written by Wobrock, Mark and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-22 with Diffraction categories.
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.
Deformation And Fracture Properties Of The Soft Magnetic Composite Somaloy 700 3p On Different Length Scales
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Author : Schwark, Tabea Gisela
language : en
Publisher: KIT Scientific Publishing
Release Date : 2018-07-09
Deformation And Fracture Properties Of The Soft Magnetic Composite Somaloy 700 3p On Different Length Scales written by Schwark, Tabea Gisela and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-09 with Grinding and polishing categories.
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.