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Sull'equilibrio termoelastico di un particolare solido incomprimibile

Diego Pigozzi (1981)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

We consider an incompressible elastic solid which admits a configuration of equilibrium having the shape of a rectangular parallelepiped C * when external forces are absent. We look for a thermoelastic transformation mapping that configuration onto a cylindrical wedge C . The problem we consider is analogous to the one where both C * and C are cylindrical crowns. This case has been considered by T. Manacorda ( 1 ) Referring C to a system of cylindrical coordinates r , ϑ and ζ , we show that the transformation...

Twinning in minerals and metals: remarks on the comparison of a thermoelastic theory with some experimental results. Mechanical twinning and growth twinning. Nota II

Giovanni Zanzotto (1988)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

In this Note II we continue the analysis of the phenomenon of mechanical twinning that we began in a preceding Note I ( 1 ) . Furthermore, we point out some fundamental properties useful in the study of growth twins, for which a fully comprehensive thermoelastic theory is not yet available.

Twinning in minerals and metals: remarks on the comparison of a thermoelastic theory with some experimental results. Generalities and mechanical twinning

Giovanni Zanzotto (1988)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

In the present Note I and in a following Note II (Zanzotto 1988), we discuss, taking into account some available experimental data, the results of a thermoelastic theory of twinning in crystalline solids. Various noteworthy problems emerge, some of which involve the hypotheses that are at the very basis of the theory.

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