Download or read book Numerical Simulations for Classification of Blast Loaded Laminated Glass written by Alexander Stolz and published by . This book was released on 2014 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is important to protect critical buildings (shopping centres, government buildings and embassies), infrastructure and utilities, train and underground stations against being damaged, destroyed or disrupted by deliberate acts of terrorism, criminal activity and malicious behaviour. Normal regulations and building guidelines do not generally take into account these threats. The introduction of appropriate regulations or guidelines, where deemed necessary, should, enhance the resilience of buildings and infrastructure against explosion incidents. In order to protect the built infrastructure, methods are required to quantify the resistance of structural components against explosive loading and to assess the hazards resulting from the failure of an element. The applicable state-of-the-art techniques may include either experimental or numerical methods, or a combination of both.^Therefore, the thematic group (TG) on the resistance of structures to explosion effects was formed in order to bring the required expertise together, make it commonly available and to find and define harmonised methods and solutions which can be provided to the decision-makers responsible for critical infrastructure protection. The current report summarizes existing best practices for the numerical finite element modelling of blast loading, including the important topics of domain discretisation, implicit/explicit formulation, Lagrangian/Eulerian solvers, the mathematical description of the material behaviour etc. Furthermore recommendations for the modelling of laminated glass elements are formulated and knowledge gaps in this application area are pointed out. Hence the report builds the basis for an actual evaluation of the different numerical methods, their suitability to certain problems, and their capability to support/complement the experimental testing of glass components.^It thus provides helpful information to design architects and engineers, and more generally to critical infrastructure stakeholders, responsible for the structural integrity and security of the infrastructure in case of an explosion.

Download or read book A Set of Essential Requirements Towards Standardising the Numerical Simulation of Blast loaded Windows and Facades written by Martin Larcher and published by . This book was released on 2015 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The determination of the blast protection level of laminated glass windows and facades is of crucial importance, and it is normally done by using experimental investigations. In recent years numerical methods have become much more powerful also with respect to this kind of application. This report attempts to give a first idea of a possible standardisation concerning such numerical simulations. Attention is drawn to the representation of the blast loading and of the behaviour of the material of the mentioned products, to the geometrical meshing, as well as to the modelling of the connections of the glass components to the main structure. The need to validate the numerical models against reliable experimental data, some of which are indicated, is underlined.

Download or read book Challenging Glass 4 COST Action TU0905 Final Conference written by Christian Louter and published by CRC Press. This book was released on 2014-01-28 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume of the Challenging Glass 4 & COST Action TU0905 Final Conference, held 6-7 February 2014 at the EPFL in Lausanne, Switzerland, represents the Final Action Publication of the European research network COST Action TU0905 “Structural Glass – Novel design methods and next generation products”. It contains nearly 100 peer-reviewed papers – published by more than 180 authors from 22 different countries – that focus on the architectural and structural applications of glass in structures and facades. As such, it provides a profound state-of-the-art of structural glass design and engineering. A must-read for all architects, engineers, scientists, industry partners and other enthusiasts interested in this rapidly evolving and challenging domain.

Download or read book Soft Target Protection written by Ladislav Hofreiter and published by Springer Nature. This book was released on 2020-03-03 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume includes articles presented during the Advanced Research Workshop on Soft Target Protection. The book presents important topics related to the protection of vulnerable objects and spaces, called Soft Targets. The chapters published in this book are thematically assigned to the blocks as follows: Theoretical aspect of soft target protection; Blast resistance of soft targets; Counter terrorism; Technical and technological solutions for soft target protection; Scheme and organizational measures; Blast protection and Forces for soft target protection. In this book, the reader will find a wealth of information about the theoretical background for designing protection of soft targets, as well as the specifics of protecting objects in armed conflict areas. New methods and procedures applicable to the soft target protection are described.

Download or read book The Micro World Observed by Ultra High Speed Cameras written by Kinko Tsuji and published by Springer. This book was released on 2017-08-30 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is about ultra high-speed cameras, which enable us to see what we normally do not see. These are objects that are moving very fast, or that we just ignore. Ultra high-speed cameras invite us to a wonderland of microseconds. There Alice (the reader) meets a ultra high-speed rabbit (this volume) and travels together through this wonderland from the year 1887 to 2017. They go to the horse riding ground and see how a horse gallops. The rabbit takes her to a showroom where various cameras and illumination devices are presented. Then, he sends Alice into semiconductor labyrinths, wind tunnels, mechanical processing factories, and dangerous explosive fields. Sometimes Alice is large, and at other times she is very small. She sits even inside a car engine. She falls down together with a droplet. She enters a microbubble, is thrown out with a jet stream, and finds herself in a human body. Waking up from her dream, she sees children playing a game: “I see what you do not see, and this is....”. Alice thinks: “The ultra high-speed rabbit showed me many things which I had never seen. Now I will go again to this wonderland, and try to find something new.

Download or read book Analysis of Glass Panels Subjected to Blast Load written by Matthias Förch and published by Springer. This book was released on 2019-04-11 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present doctoral dissertation contributes to the analysis of glass panels subjected to blast load, concentrating on monolithic and laminated glass prior to glass fracture. A straightforward graphical solution for monolithic glass is presented to identify maximum deformation and maximum principal stress for small and large deformations for static and idealized blast load without software. On the basis of experimental tests, load duration factors kmod for impact and blast load design for annealed glass, heat strengthened glass and fully tempered glass are proposed. In addition, design strength values for impact and blast design based on the European and German standards are suggested. As a result, blast pressure capacity charts for monolithic fully tempered glass plates subjected to idealized blast load are presented. Moreover, design temperatures of interlayer in blast design situation based on empirical data in accordance with Eurocode are determined for vertical double glazed and triple glazed units for Germany, showing that laminated glass should not be regarded with monolithic glass approach in general.

Download or read book Experimental Evaluation of Laminated Glass Interlayer Under High Strain Rates written by Mouhammed Jessam Lafta and published by . This book was released on 2012 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of blast-resistant glazing in buildings subject to exterior hazards can greatly reduce, if not eliminate, the hazard of flying glass shards. When properly designed, framed, and anchored, blast resistant laminates are capable of maintaining the integrity of the building envelope following an explosion or a hurricane and reducing interior damage. Analytical and experimental research exists in the literature in the area of blast-resistant glazing, but few areas of research remain unexplored related to resistance and blast response of the window system. The material response of the laminated glass under high strain rates has not been fully investigated. Therefore, the main objective of this research is to experimentally evaluate the high strain rate effects of PVB and UVEKOL-S polymers alone and laminated glass sheets using impact drop-weight testing. Virgin PVB as well as UVEKOL-S sheets extracted from laminated glass panels will evaluated in this study. The results of this study are expected to enhance the engineering design methods and numerical modeling of laminated glass windows under blast loading. A drop-weight testing apparatus was designed in this thesis for evaluating PVB and UVEKOL-S and laminated glass samples under various loading rates. Quasi-static testing of the materials was also evaluated to assess the effects of dynamic loading on the engineering response and energy-absorption capabilities of the laminated glazing and interlayer materials. The results show that the dynamic loading significantly affects the material response and the energy absorption characteristics of the interlayer materials. The strain rate variation had a more pronounced effect on the energy and impulse characteristics of the material than the ultimate strength of the polymers. Confined polymers inside scored laminated glass samples had lower dynamic strengths than polymers alone. The results of this thesis provide valuable findings regarding the dynamic response of interlayer polymers, but additional tests are still needed to develop statically reliable results. Also, a wider range of strain rates is recommended for future testing to study the effect on the glazing system under extremely high strain rates.

Download or read book Structural Use of Glass written by Matthias Haldimann and published by IABSE. This book was released on 2008 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book attempts to redress this issue by providing an overview of the recent developments in this field thereby providing a basis for the understanding of the structural performance and design of glass in buildings. Each chapter draws on the latest developments in practice and research and contains contributions from various international glass experts. The mix of general and specialist content ranging from rules of thumb to fracture mechanics and novel applications to post-breakage performance make this book useful to practitioners and researchers. Furthermore, the text is supplemented by tables of the major codes of practice and by an extensive list of references.

Download or read book Challenging Glass written by Freek Bos and published by IOS Press. This book was released on 2008 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains topics that range from glass joints, fixings and adhesives to architectural designs to the strength, stability and safety of glass. This book also covers issues such as laminates and composite designs, glass lighting, the curving and bending of glass and the many facades of glass.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1988 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical Properties of Ceramics written by John B. Wachtman and published by John Wiley & Sons. This book was released on 2009-08-13 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Comprehensive and Self-Contained Treatment of the Theory and Practical Applications of Ceramic Materials When failure occurs in ceramic materials, it is often catastrophic, instantaneous, and total. Now in its Second Edition, this important book arms readers with a thorough and accurate understanding of the causes of these failures and how to design ceramics for failure avoidance. It systematically covers: Stress and strain Types of mechanical behavior Strength of defect-free solids Linear elastic fracture mechanics Measurements of elasticity, strength, and fracture toughness Subcritical crack propagation Toughening mechanisms in ceramics Effects of microstructure on toughness and strength Cyclic fatigue of ceramics Thermal stress and thermal shock in ceramics Fractography Dislocation and plastic deformation in ceramics Creep and superplasticity of ceramics Creep rupture at high temperatures and safe life design Hardness and wear And more While maintaining the first edition's reputation for being an indispensable professional resource, this new edition has been updated with sketches, explanations, figures, tables, summaries, and problem sets to make it more student-friendly as a textbook in undergraduate and graduate courses on the mechanical properties of ceramics.

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book COST Action TU0905 Mid term Conference on Structural Glass written by Jan Belis and published by CRC Press. This book was released on 2013-04-05 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of glass as a structural material may seem surprising initially, yet pioneering glass structures were first built two decades ago already. Ever since, Structural Glass has been developing at a very high pace thanks to very intensive scientific and industrial research and new technological developments.Right at the heart of these rap

Download or read book Impact Fracture of Glass The Combined Finite Discrete Element Study written by Xudong Chen and published by . This book was released on 2019-10-18 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Study from the year 2019 in the subject Engineering - Civil Engineering, Suzhou University of Science and Technology, language: English, abstract: This book introduces theoretical and practical aspects for modelling the impact fracture of glass and laminated glass using the combined finite-discrete element method (FDEM). The FDEM is a branch of the discrete element method (DEM), and combines finite element formulation into individual discrete elements. Thus, contact forces are evaluated more accurately. Regarding the fracture of glass, a Mode I-based smeared crack model is extended and employed in the FDEM, enabling crack initiation and propagation be captured naturally. Based on the employed method and the crack model, numerical examples on fracture of glass under both hard and soft impacts are presented and validated with data from computational and experimental sources. The combined finite-discrete element method is proven to be a reliable and robust tool for examining the impact fracture responses of glass.

Download or read book Nonlinear Vibrations and Stability of Shells and Plates written by Marco Amabili and published by Cambridge University Press. This book was released on 2008-01-14 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book explores both theoretical and experimental aspects of nonlinear vibrations and stability of shells and plates. It is ideal for researchers, professionals, students, and instructors. Expert researchers will find the most recent progresses in nonlinear vibrations and stability of shells and plates, including advanced problems of shells with fluid-structure interaction. Professionals will find many practical concepts, diagrams, and numerical results, useful for the design of shells and plates made of traditional and advanced materials. They will be able to understand complex phenomena such as dynamic instability, bifurcations, and chaos, without needing an extensive mathematical background. Graduate students will find (i) a complete text on nonlinear mechanics of shells and plates, collecting almost all the available theories in a simple form, (ii) an introduction to nonlinear dynamics, and (iii) the state of art on the nonlinear vibrations and stability of shells and plates, including fluid-structure interaction problems.