Barodesy And Its Application For Clay
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Barodesy And Its Application For Clay
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Author : Gertraud Medicus
language : en
Publisher: Logos Verlag Berlin GmbH
Release Date : 2015-08-28
Barodesy And Its Application For Clay written by Gertraud Medicus 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 2015-08-28 with Science categories.
Barodesy is a constitutive model for granular materials. It is based on proportional strain and stress paths and the asymptotic behaviour of soil. In this work, an existing relation for proportional strain paths and proportional stress paths is further developed. A modification of barodesy to model clay behaviour is introduced. Common concepts of soil mechanics, such as critical states, barotropy and pyknotropy are comprised.
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 Science 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.
Challenges And Innovations In Geomechanics
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Author : Marco Barla
language : en
Publisher: Springer Nature
Release Date : 2021-01-14
Challenges And Innovations In Geomechanics written by Marco Barla and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-14 with Science categories.
This book gathers the latest advances, innovations, and applications in the field of computational geomechanics, as presented by international researchers and engineers at the 16th International Conference of the International Association for Computer Methods and Advances in Geomechanics (IACMAG 2020/21). Contributions include a wide range of topics in geomechanics such as: monitoring and remote sensing, multiphase modelling, reliability and risk analysis, surface structures, deep structures, dams and earth structures, coastal engineering, mining engineering, earthquake and dynamics, soil-atmosphere interaction, ice mechanics, landfills and waste disposal, gas and petroleum engineering, geothermal energy, offshore technology, energy geostructures, geomechanical numerical models and computational rail geotechnics.
Desiderata Geotechnica
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Author : Wei Wu
language : en
Publisher: Springer
Release Date : 2019-04-09
Desiderata Geotechnica written by Wei Wu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-09 with Technology & Engineering categories.
This book presents contributions to a workshop dedicated to Prof. Gerd Gudehus on the occasion of his 80th birthday and held in Vienna, Austria, on 14-16 August 2018. The articles gathered here, many of which were written by former students, friends and colleagues of Prof. Gudehus, cover diverse topics that reflect the breadth and depth of geomechanics research. Consequently, they offer a valuable source of ideas and inspiration on areas ranging from sophisticated constitutive models to advanced numerical methods, from particles to continua, and from fractals of geomaterials to the design of offshore wind turbine foundations.
A Primer On Theoretical Soil Mechanics
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Author : Dimitrios Kolymbas
language : en
Publisher: Cambridge University Press
Release Date : 2022-08-04
A Primer On Theoretical Soil Mechanics written by Dimitrios Kolymbas and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-04 with Business & Economics categories.
An in-depth, comprehensible approach to theoretical soil mechanics and an introduction to the new theory of barodesy.
Computational Engineering
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Author : Günter Hofstetter
language : en
Publisher: Springer
Release Date : 2014-05-15
Computational Engineering written by Günter Hofstetter and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-15 with Technology & Engineering categories.
The book presents state-of-the-art works in computational engineering. Focus is on mathematical modeling, numerical simulation, experimental validation and visualization in engineering sciences. In particular, the following topics are presented: constitutive models and their implementation into finite element codes, numerical models in nonlinear elasto-dynamics including seismic excitations, multiphase models in structural engineering and multiscale models of materials systems, sensitivity and reliability analysis of engineering structures, the application of scientific computing in urban water management and hydraulic engineering, and the application of genetic algorithms for the registration of laser scanner point clouds.
Modellierung Des Wiederbelastungsverhaltens Und Erweiterte Anwendung Der Barodesie
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Author : Manuel Bode
language : de
Publisher: Logos Verlag Berlin GmbH
Release Date : 2022
Modellierung Des Wiederbelastungsverhaltens Und Erweiterte Anwendung Der Barodesie written by Manuel Bode 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 2022 with Technology & Engineering categories.
Zur Lösung geotechnischer Problemstellungen mittels numerischer Methoden ist eine möglichst realitätsnahe mathematische Beschreibung des Bodenverhaltens mit Materialmodellen erforderlich. Bei der Barodesie handelt es sich um eine Gruppe an Materialmodellen, welche auf dem asymptotischen Verhalten des Bodens beruhen. Im Zuge dieser Arbeit wird die Weiterentwicklung der Barodesie für Ton in Bezug auf das Wiederbelastungsverhalten behandelt. Dabei werden sowohl die Aspekte der Steifigkeit im Bereich kleiner Verzerrungen (small-strain stiffness), als auch die Steifigkeitsänderung zufolge der Ãoeberkonsolidierung des Bodens betrachtet. Die hierbei entwickelten Ansätze zu Beschreibung des Bodenverhaltens werden mit Ergebnissen von Laborversuchen und mit den Ergebnissen anderer Materialmodelle verglichen. Zusätzlich wird das erhaltene Materialverhalten anhand der Nachrechnung vereinfachter, typischer geotechnischer Problemstellungen mittels Finite-Elemente Berechnungen aufgezeigt.
Development Of Soft Particle Code Sparc
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Author : Chien-Hsun Chen
language : en
Publisher: Logos Verlag Berlin GmbH
Release Date : 2015-08-31
Development Of Soft Particle Code Sparc written by Chien-Hsun Chen 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 2015-08-31 with Technology & Engineering categories.
This work aims at developing a numerical simulation method, Soft PARticle Code (SPARC). The term textit soft emphasizes that no boundaries between particles are defined and every particle possesses a support consisting of a set of adjacent particles. The polynomial interpolation/approximation method is utilized for the evaluation of spatial derivatives using the information carried by particles in supports. The system of equations consisting of spatial derivatives is solved using an iterative nonlinear solver and the computation of the Jacobian matrix is parallelized. The simulations of laboratory tests have been carried out to show the applications and limitations of the current version of SPARC. In addition to the simulations, laboratory (zig-zag) model tests using fine sand were carried out, in which the cyclic tilt of a retaining wall induces a peculiar motion in the backfill (sand), with closed trajectories (eddies).
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.
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.