Phenomenological Aspects

1st Edition - January 1, 1960

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  • Editor: J. T. Bergen
  • eBook ISBN: 9781483261768

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Viscoelasticity: Phenomenological Aspects provides information pertinent to the phenomenological aspects of viscoelasticity. This book provides the basic approach to the behavioral description of viscoelasticity. Organized into seven chapters, this book begins with an overview of the development of various theories of linear viscoelastic theories. This text then presents the results of investigation that evaluate the linear viscoelastic parameters of typical polymeric materials. Other chapters consider the development of nonlinear stress-strain-time relations for viscoelastic materials, which have been helpful in the analysis of the linear mechanical behavior of rubberlike polymers and the molecular theories. This book discusses as well the application of linear theories and the behavior of a number of polymer systems and their similarities and differences. The final chapter deals with experimental observations of real materials that exhibit nonlinear, time-dependent stress-strain behavior. This book is a valuable resource for chemists, mechanical engineers, and research workers.

Table of Contents

  • Contributors


    Stress Analysis for Viscoelastic Bodies


    The Laws of Linear Viscoelasticity

    The Stress Analysis Problem


    A Convenient Form of Viscoelastic Law for Stress Analysis

    Analytical Problems



    The Linear Viscoelastic Behavior of Rubberlike Polymers and Its Molecular Interpretation


    Basic Functions

    Exact Relations Between Basic Functions

    Approximate Relations Between Functions

    Derived Functions

    Model Representations

    Molecular Theories of Viscoelastic Properties of Polymers


    Comparisons of Viscoelastic Behavior in Seven Typical Polymer Systems


    Methods Used for Interconverting Functions

    Sources of Data

    Comparison of Results



    Treatment of Temperature

    Dependence by the Method of Reduced Variables


    The Behavior of Certain Viscoelastic Materials in Laminar Shearing Motions


    Stress-Deformation Relations for Simple Shearing Motion

    Elasticity of Non-Newtonian Fluids

    Laminar Shear Flows

    Flow through Cylindrical Pipes

    Flow Between Coaxial Cones

    Other Theories


    Constitutive Equations for Classes of Deformations

    Introductory Remarks

    Specification of the Physical System Considered

    Rotation of the Physical System

    Isotropy of the Material

    The Case of Small Deformations

    Other Classes of Deformations

    Further Discussion of the Starting Point

    Stress Relaxation of Polymeric Material in Combined Torsion and Tension


    Experimental Apparatus

    Sample Preparation

    Experimental Procedure

    Experimental Results

    Effect of Rate of Deformation

    Effect of Temperature on Modulus

    The Normal Stress Effect in Polymer Solutions

    Author Index

    Subject Index

Product details

  • No. of pages: 160
  • Language: English
  • Copyright: © Academic Press 1960
  • Published: January 1, 1960
  • Imprint: Academic Press
  • eBook ISBN: 9781483261768

About the Editor

J. T. Bergen

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