Micromechanical Modeling And Simulation Of Forming Processes
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Author | : Glavas, Vedran |
Publisher | : KIT Scientific Publishing |
Total Pages | : 158 |
Release | : 2016-12-21 |
Genre | : Technology (General) |
ISBN | : 3731506025 |
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.
Author | : Vedran Glavas |
Publisher | : |
Total Pages | : 150 |
Release | : 2020-10-09 |
Genre | : Technology & Engineering |
ISBN | : 9781013282447 |
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. 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.
Author | : Yi Qin |
Publisher | : William Andrew |
Total Pages | : 859 |
Release | : 2015-05-08 |
Genre | : Technology & Engineering |
ISBN | : 0323312675 |
Micromanufacturing Engineering and Technology, Second Edition, covers the major topics of micro-manufacturing. The book not only covers theory and manufacturing processes, but it uniquely focuses on a broader range of practical aspects of micro-manufacturing engineering and utilization by also covering materials, tools and equipment, manufacturing system issues, control aspects and case studies. By explaining material selection, design considerations and economic aspects, the book empowers engineers in choosing among competing technologies. With a focus on low-cost and high-volume micro-manufacturing processes, the updated title covers technologies such as micro-mechanical-cutting, laser-machining, micro-forming, micro-EDM, micro-ECM, hot-embossing, micro-injection molding, laser micro-sintering, thin film fabrication, inkjet technology, micro-joining, multiple processes machines, and more. Edited by one of the few world-experts in this relatively new, but rapidly-expanding area and presenting chapters written by a 40-strong team of leading industry specialists, this book is an invaluable source of information for engineers, R&D researchers and academics. - Covers key micro-manufacturing technologies, processes and equipment with high-volume production capabilities, enabling large companies as well as SMEs to introduce those technologies in production and business and reduce production costs - Outlines micro-manufacturing system engineering and practical issues pertaining to material, design, handling, metrology, inspection, testing, sensors, control, system integration and software, and micro-factories - Enables manufacturing practitioners to choose the right technology suitable for a particular product-manufacture
Author | : Lang, Juliane |
Publisher | : KIT Scientific Publishing |
Total Pages | : 250 |
Release | : 2023-06-28 |
Genre | : |
ISBN | : 3731512327 |
The aim of this work is to model and experimentally characterize the anisotropic material behavior of SMC composites on the macroscale with consideration of the microstructure. Temperature-dependent thermoelastic behavior and failure behavior are modeled and the corresponding material properties are determined experimentally. Additionally, experimental biaxial damage investigations are performed. A parameter identification merges modeling and experiments and validates the models.
Author | : Amir Khoei |
Publisher | : Elsevier |
Total Pages | : 483 |
Release | : 2010-07-07 |
Genre | : Technology & Engineering |
ISBN | : 0080529704 |
The powder forming process is an extremely effective method of manufacturing structural metal components with high-dimensional accuracy on a mass production basis. The process is applicable to nearly all industry sectors. It offers competitive engineering solutions in terms of technical performance and manufacturing costs. For these reasons, powder metallurgy is developing faster than other metal forming technology. Computational Plasticity in Powder Forming Proceses takes a specific look at the application of computer-aided engineering in modern powder forming technologies, with particular attention given to the Finite Element Method (FEM). FEM analysis provides detailed information on conditions within the processed material, which is often more complete than can be obtained even from elaborate physical experiments, and the numerical simulation makes it possible to examine a range of designs, or operating conditions economically.* Describes the mechanical behavior of powder materials using classical and modern constitutive theories.* Devoted to the application of adaptive FEM strategy in the analysis of powder forming processes.* 2D and 3D numerical modeling of powder forming processes are presented, using advanced plasticity models.
Author | : Lobos Fernández, Mauricio |
Publisher | : KIT Scientific Publishing |
Total Pages | : 224 |
Release | : 2018-07-09 |
Genre | : Materials |
ISBN | : 3731507706 |
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.
Author | : Rüdiger Pabst |
Publisher | : KIT Scientific Publishing |
Total Pages | : 70 |
Release | : 2012 |
Genre | : |
ISBN | : 386644821X |
Author | : Kehrer, Maria Loredana |
Publisher | : KIT Scientific Publishing |
Total Pages | : 204 |
Release | : 2019-06-13 |
Genre | : Technology & Engineering |
ISBN | : 3731509245 |
A discontinuous fiber-reinforced thermoset material produced by the Sheet Molding Compound process is investigated. Due to the process-related fiber orientation distribution, a composite with an anisotropic microstructure is created which crucially affects the mechanical properties. The central objectives are the modeling of the thermoelastic behavior of the composite accounting for the underlying microstructure, and the experimental characterization of the pure resin and the composite material.
Author | : Albiez, Jürgen |
Publisher | : KIT Scientific Publishing |
Total Pages | : 222 |
Release | : 2019-05-22 |
Genre | : Technology & Engineering |
ISBN | : 3731509180 |
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.
Author | : Wicht, Daniel |
Publisher | : KIT Scientific Publishing |
Total Pages | : 336 |
Release | : 2022-10-11 |
Genre | : Science |
ISBN | : 3731512203 |
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.