ELEMENTS OF CONTINUUM MECHANICS AND THERMODYNAMICS
A chaque phénomène sa variableA chaque variable sa loi d’évolution
To model the physical phenomena of deformation and fracture, described briefly in Chapter 1, a method based upon general principles which govern the variables representative of the state of the material medium is needed. The objective of this chapter is to present in a condensed form all the basic concepts that will be used in the following chapters. Two types of modelling are necessary: one, the so-called kinematical or mechanical modelling is concerned with the motions and forces in the continuum, and the second, the so-called phenomenological or physical modelling introduces the variables characterizing the phenomena under ...