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Dynamics of Fracture : Foundations of Engineering Mechanics - Nikita Morozov

Dynamics of Fracture

Foundations of Engineering Mechanics

Hardcover Published: 6th March 2000
ISBN: 9783540642749
Number Of Pages: 98

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In this book, a new phenomenological approach to brittle medium fractu re initiation under shock pulses is developed. It provides an opportun ity to estimate fracture of media with and without macrodefects. A qua litative explanation is thus obtained for a number of principally impo rtant effects of high-speed dynamic fracture that cannot be clarified within the framework of previous approaches. It is possible to apply t his new strategy to resolve applied problems of disintegration, erosio n, and dynamic strength determination of structural materials. Special ists can use the methods described to determine critical characteristi cs of dynamic strength and optimal effective fracture conditions for r igid bodies. This book can also be used as a special educational cours e on deformation of materials and constructions, and fracture mechanic s.

Problems of Dynamic Linear Fracture Mechanicsp. 1
Problems of Stability and Fracture Under High-Speed Loadingp. 1
Outline of Linear Fracture Mechanicsp. 2
Theoretical Contradictions of Fracture Mechanicsp. 3
Experimental Methods of Dynamic Fracture Researchp. 6
The Dynamic Photoelastic Methodp. 6
The Method of Causticsp. 9
On an Asymptotic Representation of the Stress Field Near The Crack Tipp. 12
Effects of High-Rate Fracture of Brittle Materialsp. 16
Fracture of 'Intact' Materialsp. 16
Study of Dynamic Crack-Growth Resistance of a Brittle Fracturep. 18
Crack Behaviour Under Threshold Loadingp. 20
Some Non-Classical Approaches. New Criterion of Brittle Fracturep. 24
On the Neuber-Novozhilov Criterionp. 24
The Shockey-Kalthof Minimal-Time Criterionp. 25
The Nikiphorovski-Shemyakin Pulse Criterionp. 26
The Structural-Temporal Criterion of Brittle-Medium Fracturep. 28
On the Discrete Nature of Dynamic Fracture of Solidsp. 30
On the Relaxation Nature of the Incubation Timep. 35
On Choice of the Parameters of Stryctural-Temporal Criterionp. 37
'Intact' Fracturep. 39
Cleavage Fracture in Solids: Dynamic Strength of Materialsp. 39
Temporal Dependence of Strengthp. 41
Fracture Zone Behavior Under Cleavagep. 43
On the Relationship of Quasistatic and Dynamic Mechanisms of Solid Fracturep. 46
On Surface Erosion Under Hard Particle Impactp. 47
Stress Fields in Problems of Dynamic Fracture Mechanicsp. 52
On a Stress State Asymptotic Description Near a Crack Tip under Dynamic Loadingp. 52
Wave Stress Pulse Interaction with a Longitudinal Shear Crackp. 53
On the Stress State Near the Tip of a Rapidly Growing Crackp. 56
On the Influence of Regular Terms of the Stress-Field Asymptotic Representationp. 58
Dynamic Fracture Near the Crack Tipp. 61
Threshold Pulses of Imact Loadingp. 61
On Loading-Rate Dependence of Dynamic Fracture Viscosityp. 65
Minimum and Maximum Pulses. Limit Characteristics of Material Dynamic Fracturep. 69
On Testing Principles of Material Dynamic Strength Propertiesp. 72
Determination of Fracture Direction Under Asymmetric-Impact Actionp. 74
Experimental Scheme and Fracture 'Mode Change' Effect"p. 74
Asymmetrical-Impact Problemp. 76
Stress-Intensity Factorsp. 77
Fracture-Direction Changep. 81
On Material Yield Modeling under High-Rate Loadingp. 84
Experimental Studies of Material Yield Under High-Rate Loadingp. 84
Classical Description Methods of Material Dynamic Properties.85
New Yield Criterionp. 86
Constant-Rate Loadingp. 87
Referencesp. 91
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9783540642749
ISBN-10: 3540642749
Series: Foundations of Engineering Mechanics
Audience: General
Format: Hardcover
Language: English
Number Of Pages: 98
Published: 6th March 2000
Country of Publication: DE
Dimensions (cm): 23.39 x 15.6  x 0.79
Weight (kg): 0.34

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