When two deformable bodies separated by a frictional interface start to slide with each other, dynamic "ruptures" (transitions from sticking to sliding) occur at the interface. The ruptures trigger waves that propagate inside the bodies and along the interface. Wave generation and propagation at contact frictional interfaces is at the origin of the friction induced vibrations and can cause dynamic instabilities, surface damages, wear and fatigue failures. It affects directly a plurality of mechanical systems involving either static or sliding frictional parts. Moreover when the two materials in contact are different, which is the most common case in mechanics, the dynamics of the phenomenon could increase in complexity due to the so-called "bimaterial" effect. The aim of this 2D numerical work is to investigate the relationship between the macroscopic behavior of the system (stick-slip, continuous sliding, dynamic instabilities, etc.) and the local dynamics at the contact (wave generation and propagation, ruptures at the contact interface).

Wave generation and propagation at frictional bimaterial sliding interfaces / DI BARTOLOMEO, Mariano; Massi, Francesco; L., Baillet; Culla, Antonio; Fregolent, Annalisa. - STAMPA. - 2:(2012), pp. 907-920. (Intervento presentato al convegno International Conference on Noise and Vibration Engineering (ISMA) / International Conference on Uncertainty in Structural Dynamics (USD) tenutosi a Leuven, BELGIUM nel SEP 17-19, 2012).

Wave generation and propagation at frictional bimaterial sliding interfaces

DI BARTOLOMEO, MARIANO;MASSI, Francesco;CULLA, Antonio;FREGOLENT, Annalisa
2012

Abstract

When two deformable bodies separated by a frictional interface start to slide with each other, dynamic "ruptures" (transitions from sticking to sliding) occur at the interface. The ruptures trigger waves that propagate inside the bodies and along the interface. Wave generation and propagation at contact frictional interfaces is at the origin of the friction induced vibrations and can cause dynamic instabilities, surface damages, wear and fatigue failures. It affects directly a plurality of mechanical systems involving either static or sliding frictional parts. Moreover when the two materials in contact are different, which is the most common case in mechanics, the dynamics of the phenomenon could increase in complexity due to the so-called "bimaterial" effect. The aim of this 2D numerical work is to investigate the relationship between the macroscopic behavior of the system (stick-slip, continuous sliding, dynamic instabilities, etc.) and the local dynamics at the contact (wave generation and propagation, ruptures at the contact interface).
2012
International Conference on Noise and Vibration Engineering (ISMA) / International Conference on Uncertainty in Structural Dynamics (USD)
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Wave generation and propagation at frictional bimaterial sliding interfaces / DI BARTOLOMEO, Mariano; Massi, Francesco; L., Baillet; Culla, Antonio; Fregolent, Annalisa. - STAMPA. - 2:(2012), pp. 907-920. (Intervento presentato al convegno International Conference on Noise and Vibration Engineering (ISMA) / International Conference on Uncertainty in Structural Dynamics (USD) tenutosi a Leuven, BELGIUM nel SEP 17-19, 2012).
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/494617
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact