Asymptotic models of fields in dilute and densely packed composites [[electronic resource] /] / A.B. Movchan, N.V. Movchan, C.G. Poulton

• Record Nr.: UNINA9910457965003321
• Autore: Movchan A. B (Alexander B.)
• Pubbl/distr/stampa: London, : Imperial College Press; River Edge, NJ, : World Scientific Pub. [distributor], c2002
• ISBN: 1-86094-961-4
• Descrizione fisica: 1 online resource (204 p.)
• Altri autori (Persone): MovchanN. V (Nataliya V.); PoultonC. G (Chris G.)
• Disciplina: 620.118
• Soggetti: Boundary value problems - Asymptotic theory; Composite materials - Defects - Mathematical models; Differential equations, Partial - Asymptotic theory; Elasticity; Electromagnetism; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references (p. 185-188) and index.
• Nota di contenuto: Contents ; Preface ; Chapter 1 Long and close range interaction within elastic structures ; 1.1 Dilute composite structures. Scalar problems ; 1.1.1 An elementary example. Motivation ; 1.1.2 Asymptotic algorithm involving a boundary layer ; 1.1.2.1 Formulation of the problem; 1.1.2.2 The leading-order approximation 1.1.2.3 Asymptotic formula for the energy ; 1.1.3 The dipole matrix ; 1.1.3.1 Definition of the dipole matrix ; 1.1.3.2 Symmetry of the dipole matrix ; 1.1.3.3 The energy asymptotics for a body with a small void; 1.1.4 Dipole matrix for a 2D void in an infinite plane 1.1.5 Dipole matrices for inclusions ; 1.1.6 A note on homogenization of dilute periodic structures ; 1.2 Dipole fields in vector problems of linear elasticity ; ; 1.2.1 Definitions and governing equations; 1.2.2 Physical interpretation 1.2.3 Evaluation of the elements of the dipole matrix ; 1.2.4 Examples ; 1.2.5 The energy equivalent voids ; 1.3 Circular elastic inclusions ; 1.3.1 Inclusions with perfect bonding at the interface ; 1.3.2 Dipole tensors for imperfectly bonded inclusions; 1.3.2.1 Derivation of transmission conditions at the zero-thickness interface 1.3.2.2 Neutral coated inclusions ; 1.4 Close-range contact between elastic inclusions ; 1.4.1 Governing equations ; 1.4.2 Complex potentials ; 1.4.3 Analysis for two circular elastic inclusions; 1.4.4 Square array of circular inclusions
• Sommario/riassunto: This monograph provides a systematic study of asymptotic models of continuum mechanics for composite structures, which are either dilute (for example, two-phase composite structures with small inclusions) or densely packed (in this case inclusions may be close to touching). It is based on the results of recent research and includes a comprehensive analysis of dipole and multipole fields associated with defects in solids. The text covers static problems of elasticity in dilute composites as well as spectral problems. Applications of the mathematical models included in the book are in damage me

Operations against enemy leaders / / Stephen T. Hosmer

• Record Nr.: UNINA9910220137503321
• Autore: Hosmer Stephen T
• Pubbl/distr/stampa: Santa Monica, CA, : Rand, 2001
• ISBN: 1-282-28301-4; 9786612283017; 0-8330-3234-8
• Edizione: [1st ed.]
• Descrizione fisica: 1 online resource (178 p.)
• Disciplina: 327.1273
• Soggetti: Insurgency; Coups d'état; Assassination; United States Military policy
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: "Prepared for the United States Air Force."; "Project Air Force."
• Nota di bibliografia: Includes bibliographical references (p. 137-151).
• Nota di contenuto: PREFACE; TABLE; SUMMARY; ACKNOWLEDGMENTS; ABBREVIATIONS; Chapter One INTRODUCTION; OBJECTIVES OF LEADERSHIP ATTACKS; STUDY APPROACH; SOURCES; ORGANIZATION OF THE REPORT; Chapter Two ATTACKING LEADERS DIRECTLY; ASSUMPTIONS UNDERLYING DIRECT ATTACKS; CONSTRAINTS ON LEADERSHIP ATTACKS; SITUATIONS IN WHICH DIRECT ATTACKS ARE LIKELY TO BE SANCTIONED; ASSESSING THE RISKS AND BENEFITS OF DIRECT ATTACKS; DIRECT ATTACKS RARELY PRODUCE WANTED POLICY CHANGES; DIRECT ATTACKS OFTEN FAIL TO DETER UNWANTED ENEMY BEHAVIOR; DIRECT ATTACKS CAN SOMETIMES PRODUCE HARMFUL UNINTENDED CONSEQUENCES; DIRECT ATTACKS FREQUENTLY FAIL TO NEUTRALIZE THEIR INTENDED TARGETSPREREQUISITES OF EFFECTIVE AIR ATTACKS ON ENEMY LEADERS; Chapter Three FACILITATING COUPS OR REBELLIONS; ASSUMPTIONS UNDERLYING SUPPORT TO COUPS OR REBELLIONS; A POOR SUCCESS RATE WITH COUPS AND REBELLIONS; SUPPORT OF REBELLION TO CHANGE HOSTILE POLICY; WHY U.S. ADVERSARIES HAVE BEEN DIFFICULT TO OVERTHROW AND INTIMIDATE; COERCIVE AND ; DETERRENT EFFECTS OF DIRECT ATTACKS, COUPS, AND REBELLIONS; PREREQUISITES OF EFFECTIVE AIR SUPPORT TO COUPS AND REBELLIONS; Chapter Four TAKING DOWN REGIMES WITH EXTERNAL MILITARY FORCE; RATIONALE FOR MAINTAINING CAPABILITIES TO TAKE DOWN ENEMY REGIMESPOTENTIAL CONSTRAINTS ON CONDUCTING TAKEDOWNS; PREREQUISITES OF EFFECTIVE AIR SUPPORT TO EXTERNAL OVERTHROW; ENHANCING THE THREAT OF EXTERNAL OVERTHROW; Chapter Five CONCLUDING OBSERVATIONS; REMOVING ENEMY LEADERS WILL BE NEITHER EASY NOR ALWAYS BENEFICIAL; WHEN LEADERSHIP ATTACKS ARE MOST LIKELY TO BE SANCTIONED; PREREQUISITES OF THE EFFECTIVE USE OF AIR POWER IN DIRECT ATTACKS, COUPS, REBELLIONS, AND TAKEDOWNS; THE DETERRENT AND COERCIVE EFFECTS OF THREATS TO REMOVE LEADERS; BIBLIOGRAPHY
• Sommario/riassunto: An examination of a number of leadership attacks from World War II to the 21st century. It offers insights into the comparative efficacy of various forms of leadership attacks, their potential coercive and deterrent value, and the possible unintended consequences of their ill-considered use.