Integrazione del problema dell'elastostatica nel caso asimmetrico e con coppie di contatto. Applicazione al problema delle piastre
Proprietà di media del campo elettromagnetico
Condizioni caratteristiche per le componenti dello stress
Su di un sistema dissipativo soggetto a forze dipendenti dal tempo
Condizioni caratteristiche per le componenti dello «stress» nel caso di corpi convessi
Integrazione del problema dell'elastostatica nel caso asimmetrico e con coppie di contatto. Applicazione al problema delle piastre. IIa parte
Sulla stabilità dell'equilibrio di un sistema dissipativo soggetto a forze di tipo attrattivo dipendenti dal tempo
We consider a holonomic and dissipative system having n degrees of freedom, subjected to elastic and time dependent forces. Some authors have determined sufficient conditions in order that the equilibrium configuration may be really stable. By means of a different procedure we give sufficient conditions for stability in a much more general case of time dependent forces.
Sul decadimento delle onde di accelerazione in un fluido non viscoso entro una teoria termodinamica non-stazionaria
In according to a recent thermodynamic theory proposed by G. Grioli, we consider the growth of acceleration waves in a non viscous fluid. We determine the solutions for the growth of a plane or spherical wave advancing into the fluid in mechanical but not in thermal equilibrium.
Sul decadimento delle onde di accelerazione in un fluido non viscoso entro una teoria termodinamica non stazionaria
In according to a recent thermodynamic theory proposed by G. Grioli we consider the growth of acceleration waves in a non viscous fluid. We determine the solutions for the growth of a plane or spherical wave advancing into the fluid in mechanical but not in thermal equilibrium.
Sulla propagazione e sull'evoluzione di onde nei solidi termoelastici. Nota I
According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Sulla propagazione e sull'evoluzione di onde nei solidi termoelastici. Nota II
According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Espressioni polinomiali dello stress per un continuo di Cosserat.
For a Cosserat continuous system with free rotations we determinate polynomial developments of the stress (stress and couples). We shall be able to considerthem as polynomial approximations of the stress since we demonstrate that whatever may be the number of the terms that we regard, they satisfy conditions of integrability of the type of the De Saint-Venant classical ones.
Sulla propagazione e sull'evoluzione di onde nei solidi termoelastici. Nota I
According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Sul decadimento delle onde di accelerazione in un fluido non viscoso entro una teoria termodinamica non-stazionaria
In according to a recent thermodynamic theory proposed by G. Grioli, we consider the growth of acceleration waves in a non viscous fluid. We determine the solutions for the growth of a plane or spherical wave advancing into the fluid in mechanical but not in thermal equilibrium.
Sul decadimento delle onde di accelerazione in un fluido non viscoso entro una teoria termodinamica non stazionaria
In according to a recent thermodynamic theory proposed by G. Grioli we consider the growth of acceleration waves in a non viscous fluid. We determine the solutions for the growth of a plane or spherical wave advancing into the fluid in mechanical but not in thermal equilibrium.
Sulla propagazione e sull'evoluzione di onde nei solidi termoelastici. Nota II
According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Una teoria sulla propagazione di onde di accelerazione termomeccaniche nei continui
Changes in Fourier’s equation on heat propagation have been proposed by C. Cattaneo and G. Grioli. In this work we generalize these modifications and propose a theory on the propagation of thermomechanical waves, by means of which the paradox of the infinite propagation velocity is avoided. We consider only isentropic deformations of the continuum (as this seems to agree with experimental results) and use the theory of iterated discontinuities. The law of propagation of the thermomechanical waves...
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