The results of an experimental inquiry regarding damping properties of alternative materials for rail-to-ground fastening components are presented and discussed. The examined materials are an high porosity sintered steel and a composite material obtained by infiltrating the steel with a viscoelastic resin. Fatigue tests were carried out with a resonance vibrofore under various fluctuating compressive loads of constant amplitude. The tests were periodically interrupted to acquire the load decay curves from which material damping properties were derived by a new procedure. Finally, damping data obtained from both materials were compared and discussed on the basis of information gained from static tests and literature results.
INTERNAL DAMPING CHARACTERIZATION OF SINTERED ADVANCED MATERIALS / DE IORIO, Antonio; Penta, Francesco; Pinto, Paolo; Pucillo, Giovanni Pio. - ELETTRONICO. - 1:(2005), pp. 379-385. (Intervento presentato al convegno Euro PM2005 Congress et Exhibition tenutosi a Prague nel 2-5 October 2005).
INTERNAL DAMPING CHARACTERIZATION OF SINTERED ADVANCED MATERIALS
DE IORIO, ANTONIO;PENTA, FRANCESCO;PINTO, PAOLO;PUCILLO, Giovanni Pio
2005
Abstract
The results of an experimental inquiry regarding damping properties of alternative materials for rail-to-ground fastening components are presented and discussed. The examined materials are an high porosity sintered steel and a composite material obtained by infiltrating the steel with a viscoelastic resin. Fatigue tests were carried out with a resonance vibrofore under various fluctuating compressive loads of constant amplitude. The tests were periodically interrupted to acquire the load decay curves from which material damping properties were derived by a new procedure. Finally, damping data obtained from both materials were compared and discussed on the basis of information gained from static tests and literature results.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
