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Journal of Failure Analysis and Prevention

, Volume 11, Issue 5, pp 514–521 | Cite as

Development of a Cornering Bench Fatigue Test for the Validation of a Lightweight Commercial Vehicle Front Hub

  • Kemal Gulbudak
  • Pasa Yayla
  • A. Yesim Yayla
Technical Article---Peer-Reviewed

Abstract

Laboratory testing to validate the performance of vehicle components is a common practice in the automotive market. However, during standard bench testing of a commercial front wheel hub, several failures occurred in unexpected regions indicating an inconsistency with the vehicle cornering tests. This article addresses this inconsistency and presents methods for fatigue assessment using an accelerated rig (bench) test for a lightweight commercial vehicle front wheel hub. A complete cornering (figure of eight) vehicle test is modeled on a multi-body dynamic simulation system (ADAMS/Chassis) and the results are compared with the actual data obtained from the hub of a vehicle instrumented with a set of wheel force transducers. The multi-axial loading condition is successfully simplified due to the dominance of some stress components. Load data from the simulation are processed with the rain flow cycle counting algorithm. Critical locations on the C55 steel hub are determined with the stress analysis done on ANSYS (ANSYS Theory Reference: Release 10.0, 2005). Total damage is estimated by using the Palmgren–Miner linear damage summation rule. Finally, some validation test results are consistent with vehicle tests and may be used to substitute performance.

Keywords

Fatigue life Automotive design Automotive failures Vehicle failures 

Notes

Acknowledgments

The authors would like to thank the Ford Otosan Product Development Center, Kocaeli, Turkey, Chassis Engineering Department members: Erhan Eyol and Server Ersolmaz for providing simulation models and test results as well as their technical supports.

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Copyright information

© ASM International 2011

Authors and Affiliations

  1. 1.General Electric Marmara Technology CenterTubitak Gebze KocaeliTurkey
  2. 2.Mechanical Engineering DepartmentKocaeli University, Engineering FacultyKocaeliTurkey
  3. 3.Mechanical Education DepartmentMarmara University, Technical Education FacultyGoztepeTurkey

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