Polymer composites, along with materials comprising viscoelastic properties are the focus of interest from the viewpoint of developing novel goods and special machinery. Mechanical characteristics of such viscoelastic materials are estimated by quasi-static tests conducted for creep and relaxation. The present monograph covers stress relaxation aspects in viscoelastic materials. Resistance of viscoelastic materials to relaxation under the influence of temperature, deformation, environment, radiation, friction, wear and other operation conditions have been traced. The book has been written primarily keeping in mind engineers, designers, scientific workers, post-graduates and students engaged in experimental and theoretical study of the mechanics of viscoelastic materials.
Polymer composites, along with materials comprising viscoelastic properties are the focus of interest from the viewpoint of developing novel goods and special machinery. Mechanical characteristics of such viscoelastic materials are estimated by quasi-static tests conducted for creep and relaxation. The present monograph covers stress relaxation aspects in viscoelastic materials. Resistance of viscoelastic materials to relaxation under the influence of temperature, deformation, environment, radiation, friction, wear and other operation conditions have been traced. The book has been written primarily keeping in mind engineers, designers, scientific workers, post-graduates and students engaged in experimental and theoretical study of the mechanics of viscoelastic materials.
Sprache
Verlagsort
Verlagsgruppe
Zielgruppe
Für höhere Schule und Studium
Für Beruf und Forschung
Maße
Gewicht
ISBN-13
978-1-57808-258-2 (9781578082582)
Copyright in bibliographic data is held by Nielsen Book Services Limited or its licensors: all rights reserved.
Schweitzer Klassifikation
Part 1 The foundations of the theory of stress relaxation: model representations; the linear theory of heredity; the non-linear theory of viscoelasticity; the non-linear theory of creep; empirical formulae for stress relaxation curves; stress relaxation calculation form creep curves. Part 2 Determination of relaxation characteristics: parameters of stress relaxation equation for a standard body with a single relaxation time; parameters of Maxwell's non-linear equation; parameters for Rabotnov's fraction-exponential function; parameters of a flexible structure function; Rzhanitsyn's kernel parameters; parameters of the Kohlraush-slonimsky equation. Part 3 Machines, instruments and devices for studying stress relaxation: methodological aspects of measuring stress relaxation in isothermal conditions compensating devices; installations with a rigid dynamometer; devices for measuring stress relaxation; devices for measuring stress relaxation in complex stress state conditions; special purpose complex installations. Part 4 Optimization of experiments at studying stress relaxation. Part 5 Structural effect on stress relaxation: stress relaxation versus chemical structure of materials; structure and relaxation properties of polymers. Part 6 Influence of outer effects on stress relaxation: incipient deformation; loading velocity; temperature; liquid medium; irradiation; vibration; friction and wear; long-term storage. Part 7 Prediction of longevity at stress relaxation. Part 8 Calculation of the construction elements made of viscoelastic materials for operation at the stress relaxation: stressed state of a viscoelastic ring with an account of friction and wear; calculation of the design elements operating under loading regimes between creep and a relaxation; calculation of a seal from a viscoelastic material; calculation of a viscoelastc rod immersed into a liquid medium under axial loading.
