The dynamical behavior of a mono-dimensional bar with distributed microcracks is addressed in terms of free and forced wave propagation. The multiscale model, derived from a generalized continuum formulation, accounts for the microstructure by means of a microdisplacement variable, added to the standard macrodisplacement, and of internal parameters representing density and length of microcracks. The influence of coupling between micro- and macrodisplacement overall response on the system is discussed, as well as the effect of the damage parameters on the propagating waves.
Dynamical properties of a composite microcracked bar based on a generalized continuum formulation / Settimi, Valeria; Trovalusci, Patrizia; Rega, Giuseppe. - In: CONTINUUM MECHANICS AND THERMODYNAMICS. - ISSN 0935-1175. - (2019), pp. 1-18. [10.1007/s00161-019-00761-7]
Dynamical properties of a composite microcracked bar based on a generalized continuum formulation
Settimi, Valeria;Trovalusci, Patrizia;Rega, Giuseppe
2019-01-01
Abstract
The dynamical behavior of a mono-dimensional bar with distributed microcracks is addressed in terms of free and forced wave propagation. The multiscale model, derived from a generalized continuum formulation, accounts for the microstructure by means of a microdisplacement variable, added to the standard macrodisplacement, and of internal parameters representing density and length of microcracks. The influence of coupling between micro- and macrodisplacement overall response on the system is discussed, as well as the effect of the damage parameters on the propagating waves.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
