A simulation based approach to model design influence on the fatigue life of a vented brake disc

Ebiakpo Kakandar, Rajkumar Roy, Jörn Mehnen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The brake disc is considered a safety critical components in vehicles, hence the growing concern on its service life performance. Brake disc
performance is measured by several criteria of which prominent amongst these criteria is fatigue life and disc thermal deflection. This study
considers the influence of geometric design features of a vented brake disc on its fatigue life at particular sections of the brake disc which are
considered critical and its deflection due to thermal inputs. A parametric study is carried out with CAE/FEA using Taguchi design of experiment. The study identified the geometric design features that significantly influence the studied performance measures. Sensitivity plots were also obtained to show the manner these design factors affect the fatigue life at these points as well as the disc thermal deflection. Two design features, the inboard plate thickness and the length of the effective offset are observed to contribute majorly to the fatigue life of the brake disc as well as its thermal deflection. Hence, design effort should be concentrated on these features for optimal fatigue life design at these points of interest in this study.
LanguageEnglish
Pages41–46
Number of pages6
JournalProcedia CIRP
Volume59
Early online date2 Mar 2017
DOIs
Publication statusPublished - 2017

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Brakes
Fatigue of materials
Computer aided engineering
Service life
Design of experiments
Finite element method
Hot Temperature

Keywords

  • degradation
  • fatigue
  • finite element
  • service life
  • Taguchi methods

Cite this

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A simulation based approach to model design influence on the fatigue life of a vented brake disc. / Kakandar, Ebiakpo; Roy, Rajkumar; Mehnen, Jörn.

In: Procedia CIRP, Vol. 59, 2017, p. 41–46.

Research output: Contribution to journalArticle

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AU - Roy, Rajkumar

AU - Mehnen, Jörn

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AB - The brake disc is considered a safety critical components in vehicles, hence the growing concern on its service life performance. Brake discperformance is measured by several criteria of which prominent amongst these criteria is fatigue life and disc thermal deflection. This studyconsiders the influence of geometric design features of a vented brake disc on its fatigue life at particular sections of the brake disc which areconsidered critical and its deflection due to thermal inputs. A parametric study is carried out with CAE/FEA using Taguchi design of experiment. The study identified the geometric design features that significantly influence the studied performance measures. Sensitivity plots were also obtained to show the manner these design factors affect the fatigue life at these points as well as the disc thermal deflection. Two design features, the inboard plate thickness and the length of the effective offset are observed to contribute majorly to the fatigue life of the brake disc as well as its thermal deflection. Hence, design effort should be concentrated on these features for optimal fatigue life design at these points of interest in this study.

KW - degradation

KW - fatigue

KW - finite element

KW - service life

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