An investigation on effects of spot face geometry on fatigue life of drum brake’s lever

Year 2019, Volume: 3 Issue: 1, 1 - 5, 31.03.2019

Cihan Kireççi , Barış Yılmaz Bora Güntay Özgün Cem Yılmaz Osman Akdağ

https://doi.org/10.30939/ijastech..495925

Abstract

Heavy commercial
vehicles, which used for construction works, mostly have drum brakes. There are
three types of drum brakes named S cam brakes, Z cam brakes and Wedge brakes,
which are safety related components for operation of the vehicle. Fatigue life
of brake components is critical. One of the most important component is lever
which transfers actuation force to camshaft. In this study, spot face geometry
of the lever was examined. FEA model multilinear material model was prepared
using ANSYS. Two types of specimens were analyzed by static structural FEM
under load of 15 kN. Effects of this three-dimensional stress analysis on
fatigue life compared experimentally. All the experimental results were plotted
and explained by using Weibull Analysis which is one of the widely used
lifetime distributions in reliability engineering.

Keywords

FEM, Lever, Stress, Deformation, Experiment, Fatigue Life

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