Design Against Blast

Design Against Blast
Author: S. Syngellakis
Publisher: WIT Press
Total Pages: 225
Release: 2013
Genre: Technology & Engineering
ISBN: 1845647505

Terrorist attacks and other destructive incidents caused by explosives have, in recent years, prompted considerable research and development into the protection of structures against blast loads. For this objective to be achieved, experiments have been performed and theoretical studies carried out to improve our assessments of the intensity as well as the space-time distribution of the resulting blast pressure on the one hand and the consequences of an explosion to the exposed environment on the other.This book aims to enhance awareness on and understanding of these topical issues through a collection of relevant, Transactions of the Wessex Institute of Technology articles written by experts in the field. The book starts with an overview of key physics-based algorithms for blast and fragment environment characterisation, structural response analyses and structural assessments with reference to a terrorist attack in an urban environment and the management of its inherent uncertainties.A subsequent group of articles is concerned with the accurate definition of blast pressure, which is an essential prerequisite to the reliable assessment of the consequences of an explosion. Other papers are concerned with alternative methods for the determination of blast pressure, based on experimental measurements or neural networks. A final group of articles reports investigations on predicting the response of specific structural entities and their contents.The book concludes with studies on the effectiveness of steel-reinforced polymer in improving the performance of reinforced concrete columns and the failure mechanisms of seamless steel pipes used in nuclear industry.

Predictive Modeling of Dynamic Processes

Predictive Modeling of Dynamic Processes
Author: Stefan Hiermaier
Publisher: Springer Science & Business Media
Total Pages: 463
Release: 2009-07-09
Genre: Science
ISBN: 1441907270

Predictive Modeling of Dynamic Processes provides an overview of hydrocode technology, applicable to a variety of industries and areas of engineering design. Covering automotive crash, blast impact, and hypervelocity impact phenomena, this volume offers readers an in-depth explanation of the fundamental code components. Chapters include informative introductions to each topic, and explain the specific requirements pertaining to each predictive hydrocode. Successfully blending crash simulation, hydrocode technology and impact engineering, this volume fills a gap in the current competing literature available.

Pressure-impulse Diagrams Using Finite Element Analysis for Reinforced Concrete Columns Subjected to Blast Loading

Pressure-impulse Diagrams Using Finite Element Analysis for Reinforced Concrete Columns Subjected to Blast Loading
Author: Rasekh Rahim Zadeh
Publisher:
Total Pages: 138
Release: 2011
Genre: Electronic dissertations
ISBN:

Reinforced concrete is one of the prime building materials widely used to construct protective structures. One of the purposes of this project is to study the non-linear response of reinforced concrete structures when subjected to impact and blast loading. The study is conducted at two levels: material level and structural level. At the material level, the strength enhancement of three material models of LS-DYNA subjected to high strain rates is studied. The effects of strain rate and lateral inertial confinement on the strength enhancement are investigated. Recommendations are made to improve the accuracy of the results of future numerical simulations for reinforced concrete structures subjected to loads having high strain rates. At the structural level, Pressure-Impulse diagrams for reinforced concrete columns that have four configurations of transverse reinforcement are developed. Finite element modeling in LS-DYNA is used to analyze the structures and calculate the damage level for each blast event. The developed Pressure-Impulse diagrams are used to study the effect of confinement on the reduction of damage level at impulsive, dynamic, and quasi-static loading conditions.

The Synergistic Effects of Combined Blast and Fragment Loadings

The Synergistic Effects of Combined Blast and Fragment Loadings
Author: Kirk A. Marchand
Publisher:
Total Pages: 406
Release: 1992
Genre:
ISBN:

The objective of this program was to determine the synergistic effects of blast and fragments on construction materials. This required the conduct of a test series to determine the structural loads and the actual failure mechanisms induced by blast loads, fragment loads and the combinations of both. The first series of tests was conducted to quantify the loads generated by the cased weapon and to establish an equivalent bare explosive charge with the same impulse distribution as the cased weapon. The second series of tests was performed in conjunction with analyses efforts to determine and compare the response modes of structural components loaded with both cased and uncased scale model weapons and to supplement future analytical developments. These tests involved scale model panels. Finally, the data was evaluated and the observed synergism was quantified. A factor of four enhancement of stress due to the synergistic effects of the blast and fragments in the concrete and fibrous concrete slabs was observed ... Synergistic effects, Blast loads, Fragments loads, Breaching, Combined loading.

11th PhD Symposium in Tokyo Japan

11th PhD Symposium in Tokyo Japan
Author: FIB – International Federation for Structural Concrete
Publisher: FIB - Féd. Int. du Béton
Total Pages: 920
Release: 2016-08-01
Genre: Technology & Engineering
ISBN: 4990914805

Rock Fragmentation by Blasting

Rock Fragmentation by Blasting
Author: Pradeep K. Singh
Publisher: CRC Press
Total Pages: 872
Release: 2012-11-05
Genre: Technology & Engineering
ISBN: 0203387678

Rock Fragmentation by Blasting contains the papers presented at the 10th International Symposium on Rock Fragmentation by Blasting (New Delhi, India, 26-29 November 2012), and represents the most advanced forum on blasting science and technology. The contributions cover all major recent advancements in blasting and fragmentation, from realistic tre

Proceedings of SECON’21

Proceedings of SECON’21
Author: Giuseppe Carlo Marano
Publisher: Springer Nature
Total Pages: 1127
Release: 2021-09-03
Genre: Technology & Engineering
ISBN: 3030803120

This book gathers peer-reviewed contributions presented at the International Conference on Structural Engineering and Construction Management (SECON’21), held on 12-15 May 2021. The meeting served as a fertile platform for discussion, sharing sound knowledge and introducing novel ideas on issues related to sustainable construction and design for the future. The respective contributions address various aspects of numerical modeling and simulation in structural engineering, structural dynamics and earthquake engineering, advanced analysis and design of foundations, BIM, building energy management, and technical project management. Accordingly, the book offers a valuable, up-to-date tool and essential overview of the subject for scientists and practitioners alike, and will inspire further investigations and research.

Understanding the Tensile Properties of Concrete

Understanding the Tensile Properties of Concrete
Author: Jaap Weerheijm
Publisher: Elsevier
Total Pages: 452
Release: 2024-03-01
Genre: Technology & Engineering
ISBN: 0443155941

The response of concrete under tensile loading is crucial for most applications because concrete is much weaker in tension than in compression. Understanding the response mechanisms of concrete under tensile conditions is therefore key to understanding and using concrete in structural applications. Understanding the Tensile Properties of Concrete Second Edition summarises key recent research in this important subject area. After an introduction to concrete, the book is divided into two parts: part one on static response and part two on dynamic response. Part one starts with a summary chapter on the most important parameters that affect the tensile response of concrete. Chapters show how multi scale modelling is used to relate concrete composition to tensile properties. Part two focuses on dynamic response and starts with an introduction to the different regimes of dynamic loading, ranging from the low frequency loading by wind or earthquakes up to the extreme dynamic conditions due to explosions and ballistic impacts. Following chapters review dynamic testing techniques and devices that deal with the various regimes of dynamic loading. Later chapters highlight the dynamic behaviour of concrete from different viewpoints, and the book ends with a chapter on practical examples of how detailed knowledge on tensile properties is used by engineers in structural applications. Drawing on the work of some of the leading experts in the field, the book is fully updated and will be a valuable reference for civil and structural engineers as well as those researching this important material. Presents recent research in the areas of understanding the response mechanisms of concrete under tensile conditions Provides a summary of the most important parameters that affect the tensile response of concrete and shows how multi scale modeling is used to relate concrete composition to tensile properties Highlights the dynamic behavior of concrete from different viewpoints and provides practical examples of how detailed knowledge on tensile properties is used by engineers in structural applications Presents recent advancements in tensile strength determination under static and dynamic loading conditions for concrete structures Covers HSFRC and FRHSC Presents new work on non-local models and damage modeling, the dynamic increase factor for tensile strength, fracture energy and anchors, and slop stabilization