Untersuchung Gro Er Verformungen In Der Vertushka
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Untersuchung Gro Er Verformungen In Der Vertushka
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Author : Iliana Polymerou
language : de
Publisher: Logos Verlag Berlin GmbH
Release Date : 2017-02-28
Untersuchung Gro Er Verformungen In Der Vertushka written by Iliana Polymerou and has been published by Logos Verlag Berlin GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-28 with Technology & Engineering categories.
Diese Arbeit befasst sich mit der experimentellen und numerischen Untersuchung großer Verformungen von Sand im Versuchsgerät Vertushka. Eine zylindrische Sandprobe wird in der Vertushka zyklisch belastet und modelliert laut Revuzhenko A.F. die Gezeitendeformation der Erde. Analysen mit Particle Image Velocimetry (PIV) zeigen, dass die Trajektorien der Sandpartikel durch Epizyklen gekennzeichnet sind, die in Drehrichtung des Geräts wandern und ein spiralförmiges Muster formen. Dilatantes Verhalten der Sandprobe wird vom Anfang des Versuchs an beobachtet. Dieses entwickelt sich weiter, bis sich die Probe nach einigen Belastungszyklen stationär verhält. Eine konvektive Bewegung wird festgestellt, bei der die Sandpartikel am Rand zum Boden des Sandbehälters sinken und in der Mitte der Sandprobe an die Oberfläche kommen. Die Randverformung der Sandprobe wird mathematisch beschrieben und als Randbedingung für die numerische Simulation gesetzt. Der netzfreie Programmcode SPARC (Soft PARticle Code) wird erweitert, um die großen Verschiebungen der Sandprobe zu simulieren. Zu diesem Zweck werden die bislang verwendeten polynomischen Basisfunktionen durch radiale Basisfunktionen ersetzt. Barodesie, eine Weiterentwicklung der Hypoplastizität von Kolymbas, wird als Materialmodell herangezogen. Barodesie bildet die Eigenschaften der Sandprobe gut ab, insbesondere das allmähliche "Vergessen" des Ausgangszustandes.
Untersuchung Gro Er Verformungen In Der Vertushka
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Author : Iliana Polymerou
language : de
Publisher:
Release Date : 2017
Untersuchung Gro Er Verformungen In Der Vertushka written by Iliana Polymerou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Applications And Developments Of Barodesy
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Author : Fabian Schranz
language : en
Publisher: Logos Verlag Berlin GmbH
Release Date : 2019-04-01
Applications And Developments Of Barodesy written by Fabian Schranz and has been published by Logos Verlag Berlin GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-01 with categories.
Barodesy is a constitutive model for granular materials such as sand and clay. It is based on the asymptotic behaviour of granular media at a constant deformation rate. In this work the existing sand version of Barodesy is improved. For this purpose, the underlying scalar equations are simplified using different concepts from soil mechanics. The improved version is also compared with laboratory tests and different elastoplastic and hypoplastic constitutive relations. Also the stability of slopes and advanced stress paths such as the rotation of the princple stresses are investigated with these models.
Spuren Im Sand
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Author : Dimitrios Kolymbas
language : de
Publisher: Logos Verlag Berlin GmbH
Release Date : 2018
Spuren Im Sand written by Dimitrios Kolymbas and has been published by Logos Verlag Berlin GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Technology & Engineering categories.
In diesem Band hat der Autor seine wesentlichen wissenschaftlichen Leistungen in möglichst verständlicher Art zusammengefasst auf den Gebieten der Stoffgesetze (Hypoplastizität, Barodesie, Rate dependence, Scherfuge), der dynamischen Pfahlprüfung, der Versetzungen, der netzfreien Methoden, der Wasservulkane u.a. Ferner werden seine vereinfachten analytischen Lösungen für den Tunnelbau angeführt (Gebirgsdruck an Firste und Sohle, Oberflächensetzung, Wirkung der Systemankerung, Erddruck auf Lawinengallerien, Quelldruck, Ringspaltverpressung, Wasserzufluss in einen Tunnel). Der Autor beschreibt einige der Innovationen in seinen Lehrbüchern und geht auf die Bedeutung der Einfachheit ein. Seine Leistungen für seine wissenschaftliche Community in Form von Tagungen, Seminaren u.ä. werden dargestellt. Zum Schluss werden vier Vorträge bzw. Artikel von ihm nachgedruckt, die seine wissenschaftlichen Vorstellungen beschreiben.
Soil Mechanics And Foundations
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Author : Muniram Budhu
language : en
Publisher: John Wiley and Sons
Release Date : 2010-12-21
Soil Mechanics And Foundations written by Muniram Budhu and has been published by John Wiley and Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-12-21 with Technology & Engineering categories.
Discover the principles that support the practice! With its simplicity in presentation, this text makes the difficult concepts of soil mechanics and foundations much easier to understand. The author explains basic concepts and fundamental principles in the context of basic mechanics, physics, and mathematics. From Practical Situations and Essential Points to Practical Examples, this text is packed with helpful hints and examples that make the material crystal clear.
Particle Based Methods
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Author : Eugenio Oñate
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-02-17
Particle Based Methods written by Eugenio Oñate and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-17 with Science categories.
The book contains 11 chapters written by relevant scientists in the field of particle-based methods and their applications in engineering and applied sciences. The chapters cover most particle-based techniques used in practice including the discrete element method, the smooth particle hydrodynamic method and the particle finite element method. The book will be of interest to researchers and engineers interested in the fundamentals of particle-based methods and their applications.
Meshfree Methods For Partial Differential Equations Vii
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Author : Michael Griebel
language : en
Publisher: Springer
Release Date : 2014-12-02
Meshfree Methods For Partial Differential Equations Vii written by Michael Griebel and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-02 with Mathematics categories.
Meshfree methods, particle methods, and generalized finite element methods have witnessed substantial development since the mid 1990s. The growing interest in these methods is due in part to the fact that they are extremely flexible numerical tools and can be interpreted in a number of ways. For instance, meshfree methods can be viewed as a natural extension of classical finite element and finite difference methods to scattered node configurations with no fixed connectivity. Furthermore, meshfree methods offer a number of advantageous features which are especially attractive when dealing with multiscale phenomena: a priori knowledge about particular local behavior of the solution can easily be introduced in the meshfree approximation space, and coarse-scale approximations can be seamlessly refined with fine-scale information. This volume collects selected papers presented at the Seventh International Workshop on Meshfree Methods, held in Bonn, Germany in September 2013. They address various aspects of this highly dynamic research field and cover topics from applied mathematics, physics and engineering.
Meshfree Methods For Partial Differential Equations Iii
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Author : Michael Griebel
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-07-18
Meshfree Methods For Partial Differential Equations Iii written by Michael Griebel and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-07-18 with Mathematics categories.
Meshfree methods for the numerical solution of partial differential equations are becoming more and more mainstream in many areas of applications. This volume represents the state-of-the-art in meshfree methods. It consists of articles which address the different meshfree techniques, their mathematical properties and their application in applied mathematics, physics and engineering.
Risk Analysis Dam Safety Dam Security And Critical Infrastructure Management
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Author : Ignacio Escuder-Bueno
language : es
Publisher: CRC Press
Release Date : 2011-09-26
Risk Analysis Dam Safety Dam Security And Critical Infrastructure Management written by Ignacio Escuder-Bueno and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-26 with Technology & Engineering categories.
This book offers the state of the art on risk analysis, representing a primary tool for achieving effective management of critical infrastructures along with a suitable framework for the development of risk management models regarding natural, technological and human-induced hazards. Essential reading for graduate students and researchers interested in risk analysis as applied to all type of critical infrastructures, and for designers, engineers, owners and operators of critical infrastructures in general and dams in particular.
Proceedings Of The 2017 Federated Conference On Computer Science And Information Systems
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Author : Maria Ganzha
language : en
Publisher:
Release Date : 2017
Proceedings Of The 2017 Federated Conference On Computer Science And Information Systems written by Maria Ganzha and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.