History effect on squeal with a mesoscopic approach to friction materials

Vincent Magnier (1, 2) , D. Naidoo Ramasami (2) , J.F. Brunel (3, 2) , P. Dufrénoy (2) , T. Chancelier (4)

1 Université de Lille
2 LML - Laboratoire de Mécanique de Lille - FRE 3723
3 Praxiling - Praxiling
4 Bosch (Chassis System Brakes)

Friction pads are made by a recipe of numerous components leading to a heterogeneous material. The originality of this paper is firstly to propose a method leading to identify local mechanical properties of friction a pad, performed at different locations, via an indentation test. Secondly, the mechanical properties obtained for each location are introduced in a modeling to perform a complex modal analysis. A comparison with an equivalent homogeneous friction pad is performed to highlight the difference. Finally, the previous approach is extended to other friction pads which have been submitted to the same test sequence but interrupted at different times to investigate the history effect.

Mots clés: Squeal; History effect; Heterogeneity properties; Indentation tests

Domaines: Matériaux et structures en mécanique [physics.class-ph]

Vincent Magnier, D. Naidoo Ramasami, J.F. Brunel, P. Dufrénoy, T. Chancelier. History effect on squeal with a mesoscopic approach to friction materials. Tribology International, 2017, 115, pp.600 - 607. ⟨10.1016/j.triboint.2017.06.031⟩. ⟨hal-01737143⟩