Microstructural Modeling And Computational Homogenization Of The Physically Linear And Nonlinear Constitutive Behavior Of Micro Heterogeneous Materials PDF Download

Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Microstructural Modeling And Computational Homogenization Of The Physically Linear And Nonlinear Constitutive Behavior Of Micro Heterogeneous Materials PDF full book. Access full book title Microstructural Modeling And Computational Homogenization Of The Physically Linear And Nonlinear Constitutive Behavior Of Micro Heterogeneous Materials.

Microstructural Modeling and Computational Homogenization of the Physically Linear and Nonlinear Constitutive Behavior of Micro-heterogeneous Materials

Microstructural Modeling and Computational Homogenization of the Physically Linear and Nonlinear Constitutive Behavior of Micro-heterogeneous Materials
Author: Felix Fritzen
Publisher: KIT Scientific Publishing
Total Pages: 190
Release: 2014-08-22
Genre: Technology & Engineering
ISBN: 3866446993

Download Microstructural Modeling and Computational Homogenization of the Physically Linear and Nonlinear Constitutive Behavior of Micro-heterogeneous Materials Book in PDF, ePub and Kindle

Engineering materials show a pronounced heterogeneity on a smaller scale that influences the macroscopic constitutive behavior. Algorithms for the periodic discretization of microstructures are presented. These are used within the Nonuniform Transformation Field Analysis (NTFA) which is an order reduction based nonlinear homogenization method with micro-mechanical background. Theoretical and numerical aspects of the method are discussed and its computational efficiency is validated.


Microstructure generation and micromechanical modeling of sheet molding compound composites

Microstructure generation and micromechanical modeling of sheet molding compound composites
Author: Görthofer, Johannes
Publisher: KIT Scientific Publishing
Total Pages: 258
Release: 2022-09-13
Genre: Technology & Engineering
ISBN: 373151205X

Download Microstructure generation and micromechanical modeling of sheet molding compound composites Book in PDF, ePub and Kindle

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.


Finite element simulation of dislocation based plasticity and diffusion in multiphase materials at high temperature

Finite element simulation of dislocation based plasticity and diffusion in multiphase materials at high temperature
Author: Albiez, Jürgen
Publisher: KIT Scientific Publishing
Total Pages: 222
Release: 2019-05-22
Genre: Technology & Engineering
ISBN: 3731509180

Download Finite element simulation of dislocation based plasticity and diffusion in multiphase materials at high temperature Book in PDF, ePub and Kindle

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.


Efficient fast Fourier transform-based solvers for computing the thermomechanical behavior of applied materials

Efficient fast Fourier transform-based solvers for computing the thermomechanical behavior of applied materials
Author: Wicht, Daniel
Publisher: KIT Scientific Publishing
Total Pages: 336
Release: 2022-10-11
Genre: Science
ISBN: 3731512203

Download Efficient fast Fourier transform-based solvers for computing the thermomechanical behavior of applied materials Book in PDF, ePub and Kindle

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.