Micromechanical Finite Element Simulations Of Crack Propagation In Silicon Nitride
DOWNLOAD
Download Micromechanical Finite Element Simulations Of Crack Propagation In Silicon Nitride PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Micromechanical Finite Element Simulations Of Crack Propagation In Silicon Nitride book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Micromechanical Finite Element Simulations Of Crack Propagation In Silicon Nitride
DOWNLOAD
Author : Johannes Wippler
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-07-28
Micromechanical Finite Element Simulations Of Crack Propagation In Silicon Nitride written by Johannes Wippler 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 2014-07-28 with Technology & Engineering categories.
Silicon nitride is used for challening applications like cutting inserts or forming rolls. The extreme strength and toughness of the material is achieved by an interaction between the microstructure and fracture behaviour on the microlevel. In order to understand these mechanisms, detailed unit cells have been defined and used for the determination of the effective fracture properties. The results have been used for the implementation of an effective continuum damage mechanics model.
Micromechanical Finite Element Simulations Of Crack Propagation In Silicon Nitride
DOWNLOAD
Author : Johannes Wippler
language : en
Publisher:
Release Date : 2012
Micromechanical Finite Element Simulations Of Crack Propagation In Silicon Nitride written by Johannes Wippler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Silicon nitride categories.
Finite Element Simulation Of Dislocation Based Plasticity And Diffusion In Multiphase Materials At High Temperature
DOWNLOAD
Author : Albiez, Jürgen
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-05-22
Finite Element Simulation Of Dislocation Based Plasticity And Diffusion In Multiphase Materials At High Temperature written by Albiez, Jürgen 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 2019-05-22 with Technology & Engineering categories.
A single-crystal plasticity model as well as a gradient crystal plasticity model are used to describe the creep behavior of directionally solidi?ed NiAl based eutectic alloys. To consider the transition from theoretical to bulk strength, a hardening model was introduced to describe the strength of the reinforcing phases. Moreover, to account for microstructural changes due to material ?ux, a coupled diffusional-mechanical simulation model was introduced.
Micromechanical Modeling And Simulation Of Forming Processes
DOWNLOAD
Author : Glavas, Vedran
language : en
Publisher: KIT Scientific Publishing
Release Date : 2016-12-21
Micromechanical Modeling And Simulation Of Forming Processes written by Glavas, Vedran 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 2016-12-21 with Technology (General) categories.
The deep drawing of an aluminum alloy used in the packaging industry for the beverage can manufacturing process is investigated. In this work, the effective constitutive behavior is based on a crystal plasticity model in combination with a non-linear Hashin-Shtrikman type homogenization scheme in which a reference stiffness controls the stress and strain fluctuations. The simulation results are compared to experiments in terms of deep drawing earing profiles, texture evolution, and localization.
Micromechanical Modeling Of Short Fiber Reinforced Composites
DOWNLOAD
Author : Mueller, Viktor
language : en
Publisher: KIT Scientific Publishing
Release Date : 2016-06-16
Micromechanical Modeling Of Short Fiber Reinforced Composites written by Mueller, Viktor 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 2016-06-16 with Technology (General) categories.
This work is focused on the prediction of elastic behavior of short-fiber reinforced composites by mean-field homogenization methods, which account for experimentally determined and artificially constructed microstructure data in discrete and averaged form. The predictions are compared with experimental measurements and a full-field voxel-based approach. It is investigated, whether the second-order orientation tensor delivers a sufficient microstructure description for such predictions.
Microstructure Generation And Micromechanical Modeling Of Sheet Molding Compound Composites
DOWNLOAD
Author : Görthofer, Johannes
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-09-13
Microstructure Generation And Micromechanical Modeling Of Sheet Molding Compound Composites written by Görthofer, Johannes 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 2022-09-13 with Technology & Engineering categories.
Wir präsentieren einen Algorithmus zur schnellen Erzeugung von SMC Mikrostrukturen hoher Güte, durch Verwendung einer exakten Schließung und eines quasi-zufälligen Samplings. Darüber hinaus stellen wir ein modulares Framework zur Modellierung anisotroper Schädigung vor. Unser Konzept der Extraktionstensoren und Schädigungsfunktionen ermöglicht die Beschreibung komplexer Vorgänge. Darüber hinaus schlagen wir einen ganzheitlichen Multiskalenansatz zur Bestimmung anisotroper Versagenskriterien vor. - We introduce an algorithm that allows for a fast generation of SMC composite microstructures. An exact closure approximation and a quasi-random orientation sampling ensure high fidelity. Furthermore, we present a modular framework for anisotropic damage evolution. Our concept of extraction tensors and damage-hardening functions enables the description of complex damage-degradation. In addition, we propose a holistic multiscale approach for constructing anisotropic failure criteria.
Deep Material Networks For Efficient Scale Bridging In Thermomechanical Simulations Of Solids
DOWNLOAD
Author : Gajek, Sebastian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-08-25
Deep Material Networks For Efficient Scale Bridging In Thermomechanical Simulations Of Solids written by Gajek, Sebastian 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 2023-08-25 with categories.
We investigate deep material networks (DMN). We lay the mathematical foundation of DMNs and present a novel DMN formulation, which is characterized by a reduced number of degrees of freedom. We present a efficient solution technique for nonlinear DMNs to accelerate complex two-scale simulations with minimal computational effort. A new interpolation technique is presented enabling the consideration of fluctuating microstructure characteristics in macroscopic simulations.
Two Scale Thermomechanical Simulation Of Hot Stamping
DOWNLOAD
Author : Neumann, Rudolf
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-10-27
Two Scale Thermomechanical Simulation Of Hot Stamping written by Neumann, Rudolf 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 2017-10-27 with Technology (General) categories.
Hot stamping is a hot drawing process which takes advantage of the polymorphic steel behavior to produce parts with a good strength-to-weight ratio. For the simulation of the hot stamping process, a nonlinear two-scale thermomechanical model is suggested and implemented into the FE tool ABAQUS. Phase transformation and transformation induced plasticity effects are taken into account. The simulation results regarding the final shape and residual stresses are compared to experimental findings.
Microstructure Modeling And Crystal Plasticity Parameter Identification For Predicting The Cyclic Mechanical Behavior Of Polycrystalline Metals
DOWNLOAD
Author : Kuhn, Jannick
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-04-04
Microstructure Modeling And Crystal Plasticity Parameter Identification For Predicting The Cyclic Mechanical Behavior Of Polycrystalline Metals written by Kuhn, Jannick 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 2023-04-04 with Technology & Engineering categories.
Computational homogenization permits to capture the influence of the microstructure on the cyclic mechanical behavior of polycrystalline metals. In this work we investigate methods to compute Laguerre tessellations as computational cells of polycrystalline microstructures, propose a new method to assign crystallographic orientations to the Laguerre cells and use Bayesian optimization to find suitable parameters for the underlying micromechanical model from macroscopic experiments.
Homogenization And Materials Design Of Mechanical Properties Of Textured Materials Based On Zeroth First And Second Order Bounds Of Linear Behavior
DOWNLOAD
Author : Lobos Fernández, Mauricio
language : en
Publisher: KIT Scientific Publishing
Release Date : 2018-07-09
Homogenization And Materials Design Of Mechanical Properties Of Textured Materials Based On Zeroth First And Second Order Bounds Of Linear Behavior written by Lobos Fernández, Mauricio 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 Materials categories.
This work approaches the fields of homogenization and of materials design for the linear and nonlinear mechanical properties with prescribed properties-profile. The set of achievable properties is bounded by the zeroth-order bounds (which are material specific), the first-order bounds (containing volume fractions of the phases) and the second-order Hashin-Shtrikman bounds with eigenfields in terms of tensorial texture coefficients for arbitrarily anisotropic textured materials.