1st Edition

Physics of Strength and Fracture Control
Adaptation of Engineering Materials and Structures




ISBN 9780849311512
Published September 17, 2002 by CRC Press
672 Pages 315 B/W Illustrations

USD $375.00

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Book Description

Still passive and for the most part uncontrollable, current systems intended to ensure the reliability and durability of engineering structures are still in their developmental infancy. They cannot make corrections or recondition materials, and most material and structural failures cannot be predicted. Accidents-and catastrophes-result.

Physics of Strength and Fracture Control: Adaptation of Engineering Materials and Structures introduces a new physical concept in the science of the resistance of materials to external effects, a concept that opens completely new avenues for improving the strength and safety of engineered objects. Based on a thermodynamic equation of state of solids derived by the author, the approach provides a general methodology for treating all the physical and mechanical properties of materials, regardless of their nature and physical state. The author shows that this approach enables the control of the stressed-deformed state both to prevent failures and fractures and to promote them for easier shaping of materials. He uses this methodology to present and discuss non-traditional but practical ways of solving real-world problems.

Of enormous theoretical and practical significance, this groundbreaking work ushers in a new stage in the science of material strength. It opens the door to systematic ways to design materials, control their operating properties, and predict their behavior under specific operating conditions.

Table of Contents

TABLE OF CONTENT

STRUCTURAL MECHANICS AND ELECTRODYNAMICS OF INTERATOMIC BONDS
The State of Electrons and Nuclei in Isolated Atoms
Diagram of Formation and Energy of the Paired Bonds
Character of Movement of Bound Atoms
Localization Parameters and Rotos State Equation
Electrodynamics of Interatomic Interaction
Thermal Radiation, Phase Transitions and Formation of Vacancies
Condition of Stability: Low- and High-Temperature Disintegration
Failure at the Debye Temperature
Three Mechanisms of Disintegration of the Bonds: "Theoretical" Strength and Phenomenon of Brittle Fracture
Deformation, Coriolis Forces and Inertial Effects
EQUATION OF STATE OF A SOLID AND ITS MANIFESTATIONS AT MACROSCOPIC LEVEL
Basic Thermodynamic Potentials
Potentials of Systems with a Varying Number of Interatomic Bonds
Thermodynamic Equation of State of a Solid
Parameters of State, Relationship of Equivalence and Entropy
Brittle and Ductile Structures
Temperature Dependence of Mechanical Properties
Periodic Law of Variations in State
Phase and Aggregate States of Materials
Mechanical Hysteresis: Causes of Formation and Practical Consequences
Compression-Dilation Nature of Dislocations
INTERACTION WITH EXTERNAL FIELDS
Equation of Interaction
Analogy Between Polarization, Magnetization, Force and Thermal Deformation
Orientation Nature of Elastic Stage of Deformation
Plastic Deformation and Destruction Processes
Scale Effect: Causes of Initiation, Forms of Manifestation and Dangerous Consequences
Mechanism of Formation of the Maxwell-Boltzmann Factor
Dependence of Mechanical Properties upon the Packing Density of a Structure
Variation of State in Compression and Tension
Complex Stressed States: Mechanism of Formation and Prospects of Application for Fracture Prevention
Mechanical, Thermal, Ultrasonic, Electron, Chemical and Other Effects in Deformation and Fracture
VARIATIONS OF STATE UNDER DYNAMIC AND QUASI-STATIC LOADING CONDITIONS
Dynamic Effect (DE)
Durability
SOLIDS IN ACTIVE MEDIA
Aging
Hydrogen Embrittlement
Radiation Damage
Moisture-Induced Softening of Porous Materials
Durability of Unstable Structures
Defect Healing and Damaged Structure Restoration
PHYSICS Of FRACTURE
Concentration of Stresses as an Inherent Property of Crystalline Structures
Rigid-Link Nature of Fracture
Probability and Thermodynamic Aspects of the Deformation Diagrams
Mechanism of Formation and Development of Cracks
Crack Propagation and Restrain
Retardation of Cracks
FATIGUE: PHYSICAL NATURE, PREDICTION, ELIMINATION, AND RELIEF
Equation of Thermomechanical Fatigue
Compression-Dilation (CD) Nature of Fatigue
Prediction of Thermal-Mechanical-Radiation Fatigue
Prevention and Relief of Fatigue
DIAGNOSTICS OF TECHNICAL STATE AND PREDICTION OF SERVICE LIFE
Diagnostics of Stress-Strain State
Determination of Strength of Materials Using Elasto-Plastic Hardness Indicators
Prediction of Residual Resource and Durability
PHYSICAL PRINCIPLES OF ADAPTATION OF MATERIALS AND STRUCTURES TO SERVICE CONDITIONS
Control of Physical-Mechanical Properties
Controllable and Non-Controllable Modes of Ensuring Strength, Reliability and Durability
Principles of the Theory of Design of Materials Properties
Formation of Anisotropic Structures
Correction of Resource after Solidification
Technologies for Formation of Variatropic Structures
Control of the Stressed-Deformed State
Prevention of Deformation and Fracture in Competing Fields
Promising Technologies and Ingenious Design Solutions
REFERENCES

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