Numerically Efficient Gradient Crystal Plasticity With A Grain Boundary Yield Criterion And Dislocation Based Work Hardening
DOWNLOAD
Download Numerically Efficient Gradient Crystal Plasticity With A Grain Boundary Yield Criterion And Dislocation Based Work Hardening PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Numerically Efficient Gradient Crystal Plasticity With A Grain Boundary Yield Criterion And Dislocation Based Work Hardening 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
Numerically Efficient Gradient Crystal Plasticity With A Grain Boundary Yield Criterion And Dislocation Based Work Hardening
DOWNLOAD
Author : Wulfinghoff, Stephan
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-12-10
Numerically Efficient Gradient Crystal Plasticity With A Grain Boundary Yield Criterion And Dislocation Based Work Hardening written by Wulfinghoff, Stephan 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 2014-12-10 with Technology (General) categories.
This book is a contribution to the further development of gradient plasticity. Several open questions are addressed, where the efficient numerical implementation is particularly focused on. Thebook inspects an equivalent plastic strain gradient plasticity theory and a grain boundary yield model. Experiments can successfully be reproduced. The hardening model is based on dislocation densities evolving according to partial differential equations taking into account dislocation transport.
Numerically Efficient Gradient Crystal Plasticity With A Grain Boundary Yield Criterion And Dislocation Based Work Hardening
DOWNLOAD
Author : Stephan Wulfinghoff
language : en
Publisher:
Release Date : 2020-10-09
Numerically Efficient Gradient Crystal Plasticity With A Grain Boundary Yield Criterion And Dislocation Based Work Hardening written by Stephan Wulfinghoff 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.
This book is a contribution to the further development of gradient plasticity. Several open questions are addressed, where the efficient numerical implementation is particularly focused on. Thebook inspects an equivalent plastic strain gradient plasticity theory and a grain boundary yield model. Experiments can successfully be reproduced. The hardening model is based on dislocation densities evolving according to partial differential equations taking into account dislocation transport. 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.
Modeling Of Dislocation Grain Boundary Interactions In Gradient Crystal Plasticity Theories
DOWNLOAD
Author : Erdle, Hannes
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-07-12
Modeling Of Dislocation Grain Boundary Interactions In Gradient Crystal Plasticity Theories written by Erdle, Hannes 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 2022-07-12 with Technology & Engineering categories.
A physically-based dislocation theory of plasticity is derived within an extended continuum mechanical context. Thermodynamically consistent flow rules at the grain boundaries are derived. With an analytical solution of a three-phase periodic laminate, dislocation pile-up at grain boundaries and dislocation transmission through the grain boundaries are investigated. For the finite element implementations, numerically efficient approaches are introduced based on accumulated field variables.
Single Crystal Gradient Plasticity With An Accumulated Plastic Slip Theory And Applications
DOWNLOAD
Author : Eric Bayerschen
language : en
Publisher: KIT Scientific Publishing
Release Date : 2016
Single Crystal Gradient Plasticity With An Accumulated Plastic Slip Theory And Applications written by Eric Bayerschen 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 with Technology (General) categories.
In experiments on metallic microwires, size effects occur as a result of the interaction of dislocations with, e.g., grain boundaries. In continuum theories this behavior can be approximated using gradient plasticity. A numerically efficient geometrically linear gradient plasticity theory is developed considering the grain boundaries and implemented with finite elements. Simulations are performed for several metals in comparison to experiments and discrete dislocation dynamics simulations.
A Gradient Crystal Plasticity Theory Based On An Extended Energy Balance
DOWNLOAD
Author : Prahs, Andreas
language : en
Publisher: KIT Scientific Publishing
Release Date : 2020-09-15
A Gradient Crystal Plasticity Theory Based On An Extended Energy Balance written by Prahs, Andreas 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 2020-09-15 with Technology & Engineering categories.
An overview of different methods for the derivation of extended continuum models is given. A gradient plasticity theory is established in the context of small deformations and single slip by considering the invariance of an extended energy balance with respect to Euclidean transformations, where the plastic slip is considered as an additional degree of freedom. Thermodynamically consistent flow rules at the grain boundary are derived. The theory is applied to a two- and a three-phase laminate.
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.
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.
Work Hardening Of Dual Phase Steel
DOWNLOAD
Author : Rieger, Florian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2016-07-01
Work Hardening Of Dual Phase Steel written by Rieger, Florian 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 2016-07-01 with Technology (General) categories.
Dual-phase steels exhibit good mechanical properties due to a microstructure of strong martensitic inclusions embedded in a ductile ferritic matrix. This work presents a two-scale model for the underlying work-hardening effects; such as the distinctly different hardening rates observed for high-strength dual-phase steels. The model is based on geometrically necessary dislocations and comprises the average microstructural morphology as well as a direct interaction between the constituents.
Efficient Fast Fourier Transform Based Solvers For Computing The Thermomechanical Behavior Of Applied Materials
DOWNLOAD
Author : Wicht, Daniel
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-10-11
Efficient Fast Fourier Transform Based Solvers For Computing The Thermomechanical Behavior Of Applied Materials written by Wicht, Daniel 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 2022-10-11 with Science categories.
The mechanical behavior of many applied materials arises from their microstructure. Thus, to aid the design, development and industrialization of new materials, robust computational homogenization methods are indispensable. The present thesis is devoted to investigating and developing FFT-based micromechanics solvers for efficiently computing the (thermo)mechanical response of nonlinear composite materials with complex microstructures.
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.