Blast effects

Public ISBD Titre : Blast effects : physical properties of shock waves Type de document : texte imprimé Auteurs : Isabelle) Sochet, Auteur Editeur : Cham : Imprint : Springer Année de publication : 2018 Collection : Shock wave and high pressure phenomena, ISSN 2197-9529 Importance : 197 p. Présentation : ill. en coul. Format : 24 cm ISBN/ISSN/EAN : 978-3-319-88999-3 Langues : Anglais (eng) Tags : effet de souffle  Sciences -- Mécanique -- Dynamique -- Thermodynamique  Ingénierie thermodynamique Index. décimale : 624.176 Contraintes et tensions (Déformation) Résumé : This book compiles a variety of experimental data on blast waves. The book begins with an introductory chapter and proceeds to the topic of blast wave phenomenology, with a discussion on Rankine-Hugoniot equations and the Friedlander equation, used to describe the pressure-time history of a blast wave. Additional topics include arrival time measurement, the initiation of detonation by exploding wires, a discussion of TNT equivalency, and small scale experiments. Gaseous and high explosive detonations are covered as well. The topics and experiments covered were chosen based on the comparison of used scale sizes, from small to large. Each characteristic parameter of blast waves is analyzed and expressed versus scaled distance in terms of energy and mass. Finally, the appendix compiles a number of polynomial laws that will prove indispensable for engineers and researchers. Blast effects : physical properties of shock waves [texte imprimé] / Isabelle) Sochet, Auteur . - Cham : Imprint : Springer, 2018 . - 197 p. : ill. en coul. ; 24 cm. - (Shock wave and high pressure phenomena, ISSN 2197-9529) . ISBN : 978-3-319-88999-3 Langues : Anglais (eng) Tags : effet de souffle  Sciences -- Mécanique -- Dynamique -- Thermodynamique  Ingénierie thermodynamique Index. décimale : 624.176 Contraintes et tensions (Déformation) Résumé : This book compiles a variety of experimental data on blast waves. The book begins with an introductory chapter and proceeds to the topic of blast wave phenomenology, with a discussion on Rankine-Hugoniot equations and the Friedlander equation, used to describe the pressure-time history of a blast wave. Additional topics include arrival time measurement, the initiation of detonation by exploding wires, a discussion of TNT equivalency, and small scale experiments. Gaseous and high explosive detonations are covered as well. The topics and experiments covered were chosen based on the comparison of used scale sizes, from small to large. Each characteristic parameter of blast waves is analyzed and expressed versus scaled distance in terms of energy and mass. Finally, the appendix compiles a number of polynomial laws that will prove indispensable for engineers and researchers.

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Geomechanics of failures / Alexander M. Puzrin

Public ISBD Titre : Geomechanics of failures Type de document : texte imprimé Auteurs : Alexander M. Puzrin, Auteur ; Eduardo E. Alonso, Auteur ; Nuria M. Pinyol, Auteur Editeur : Heidelberg : Springer Année de publication : 2010 Importance : 245 p. Présentation : ill., couv. ill. en coul. Format : 24 cm ISBN/ISSN/EAN : 978-90-481-3530-1 Langues : Anglais (eng) Index. décimale : 624.176 Contraintes et tensions (Déformation) Résumé : The main goal of this introductory text is to demonstrate how basic concepts in Soil Mechanics can be used as a "forensic" tool in the investigation of geotechnical failures. This, in turn, provides a good opportunity to show how to use available procedures in the formulation of useful simple models. Geotechnical failure is understood here in a broad sense as the failure of a structure to function properly due to a geotechnical reason. Some of the geotechnical failures selected are well known for their impact on the geotechnical community. Others are closer to the author's experience. They have been organized into three main topics: Settlement, Bearing Capacity and Excavations. They cover a significant proportion of every day's activity of professional geotechnical engineers. No attempt has been made to create a comprehensive handbook of failures. Instead, the emphasis has been given to creative applications of simple mechanical concepts and well known principles and solutions of Soil Mechanics. The book shows how much can be learned from relatively simple approaches. Despite this emphasis on simplicity, the book provides a deep insight into the cases analyzed. A non-negligible number of new analytical closed-form solutions have also been found. Their derivation can be followed in detail. In all the cases described an effort was made to provide a detailed and step by step description of the hypothesis introduced and of the analysis performed. Geomechanics of failures [texte imprimé] / Alexander M. Puzrin, Auteur ; Eduardo E. Alonso, Auteur ; Nuria M. Pinyol, Auteur . - Heidelberg : Springer, 2010 . - 245 p. : ill., couv. ill. en coul. ; 24 cm. ISBN : 978-90-481-3530-1 Langues : Anglais (eng) Index. décimale : 624.176 Contraintes et tensions (Déformation) Résumé : The main goal of this introductory text is to demonstrate how basic concepts in Soil Mechanics can be used as a "forensic" tool in the investigation of geotechnical failures. This, in turn, provides a good opportunity to show how to use available procedures in the formulation of useful simple models. Geotechnical failure is understood here in a broad sense as the failure of a structure to function properly due to a geotechnical reason. Some of the geotechnical failures selected are well known for their impact on the geotechnical community. Others are closer to the author's experience. They have been organized into three main topics: Settlement, Bearing Capacity and Excavations. They cover a significant proportion of every day's activity of professional geotechnical engineers. No attempt has been made to create a comprehensive handbook of failures. Instead, the emphasis has been given to creative applications of simple mechanical concepts and well known principles and solutions of Soil Mechanics. The book shows how much can be learned from relatively simple approaches. Despite this emphasis on simplicity, the book provides a deep insight into the cases analyzed. A non-negligible number of new analytical closed-form solutions have also been found. Their derivation can be followed in detail. In all the cases described an effort was made to provide a detailed and step by step description of the hypothesis introduced and of the analysis performed.

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Stochastic Dynamic Response Analysis and Performance-Based Seismic Safety Evaluation for High Concrete Faced Rockfill Dams / Bin Xu  

Public ISBD Titre : Stochastic Dynamic Response Analysis and Performance-Based Seismic Safety Evaluation for High Concrete Faced Rockfill Dams Type de document : document électronique Auteurs : Bin Xu, Auteur ; Rui Pang, Auteur Editeur : Singapore : Springer Singapore Année de publication : 2025 Importance : 197 p. Format : en ligne ISBN/ISSN/EAN : 978-981-9771-98-1 Langues : Anglais (eng) Tags : Civil Engineering  Stochastic dynamic analysis  Probability analysis Index. décimale : 624.176 Contraintes et tensions (Déformation) Résumé : This open access book provides a complete probabilistic analysis method and a performance-based seismic safety evaluation for high concrete faced rockfill dam (CFRD). Combined with random sample generation and reliability analysis methods, the dynamic response characteristics and reliability level of CFRD under various random factors are comprehensively described. In Chapter 2, a random ground motion model based on spectral representation-random function and a high-dimensional random variable generation method based on GF- discrepancy are established. Combined with probability density evolution method (PDEM) and the random sample generation methods to verify its effectiveness and reliability for nonlinear complex geotechnical engineering. In Chapter 3, the dynamic response and probabilistic characteristics of high CFRD under random ground motion are revealed based on the elastoplastic analysis. A performance-based seismic safety evaluation method is established. In Chapter 4, the influence of material parameter randomness on dynamic response and seismic safety of high CFRD is studied from the perspective of stochastic dynamics and probability. In Chapter 5, the stochastic dynamic response and probability distribution of high CFRD under the coupled random action of ground motion and material parameters are systematically studied, and the performance-based seismic safety evaluation framework is improved. In Chapter 6, The stochastic dynamic response of 3D high CFRD is studied, and the failure performance index and performance level based on overstress volume ratio combined with overstress accumulation time are discussed. The performance-based seismic safety evaluation framework is further improved. In Chapter 7, combined with the finite element dynamic time-history analysis method considering the softening effect of rockfill, a performance-based seismic safety evaluation framework for dam slope stability of high CFRD under multiple random factors is systematically explored from the perspective of stochastic dynamics and probability. In Chapter 8, The performance indexes of seismic safety evaluation for high CFRDs are suggested and the corresponding performance level with probability assurance is put forward. The multi-seismic intensity - multi-performance target - failure probability performance relationship is established, and a performance-based seismic safety evaluation framework is initially formed. This book can be used as a reference for scholars studying random vibration and reliability analysis, as well as for scholars studying dam safety evaluation. En ligne : https://doi.org/10.1007/978-981-97-7198-1 Stochastic Dynamic Response Analysis and Performance-Based Seismic Safety Evaluation for High Concrete Faced Rockfill Dams [document électronique] / Bin Xu, Auteur ; Rui Pang, Auteur . - Singapore : Springer Singapore, 2025 . - 197 p. ; en ligne. ISBN : 978-981-9771-98-1 Langues : Anglais (eng) Tags : Civil Engineering  Stochastic dynamic analysis  Probability analysis Index. décimale : 624.176 Contraintes et tensions (Déformation) Résumé : This open access book provides a complete probabilistic analysis method and a performance-based seismic safety evaluation for high concrete faced rockfill dam (CFRD). Combined with random sample generation and reliability analysis methods, the dynamic response characteristics and reliability level of CFRD under various random factors are comprehensively described. In Chapter 2, a random ground motion model based on spectral representation-random function and a high-dimensional random variable generation method based on GF- discrepancy are established. Combined with probability density evolution method (PDEM) and the random sample generation methods to verify its effectiveness and reliability for nonlinear complex geotechnical engineering. In Chapter 3, the dynamic response and probabilistic characteristics of high CFRD under random ground motion are revealed based on the elastoplastic analysis. A performance-based seismic safety evaluation method is established. In Chapter 4, the influence of material parameter randomness on dynamic response and seismic safety of high CFRD is studied from the perspective of stochastic dynamics and probability. In Chapter 5, the stochastic dynamic response and probability distribution of high CFRD under the coupled random action of ground motion and material parameters are systematically studied, and the performance-based seismic safety evaluation framework is improved. In Chapter 6, The stochastic dynamic response of 3D high CFRD is studied, and the failure performance index and performance level based on overstress volume ratio combined with overstress accumulation time are discussed. The performance-based seismic safety evaluation framework is further improved. In Chapter 7, combined with the finite element dynamic time-history analysis method considering the softening effect of rockfill, a performance-based seismic safety evaluation framework for dam slope stability of high CFRD under multiple random factors is systematically explored from the perspective of stochastic dynamics and probability. In Chapter 8, The performance indexes of seismic safety evaluation for high CFRDs are suggested and the corresponding performance level with probability assurance is put forward. The multi-seismic intensity - multi-performance target - failure probability performance relationship is established, and a performance-based seismic safety evaluation framework is initially formed. This book can be used as a reference for scholars studying random vibration and reliability analysis, as well as for scholars studying dam safety evaluation. En ligne : https://doi.org/10.1007/978-981-97-7198-1

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