Fatigue Life Prediction of Z Type Leaf Spring and New Approach to Verification Method

Duruş M., Rkayak L., Ceyhan A., Kozana K.

3rd International Conference on Material and Component Performance under Variable Amplitude Loading, VAL, Prague, Czech Republic, 23 - 26 March 2015, vol.101, pp.143-150 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 101
  • Doi Number: 10.1016/j.proeng.2015.02.019
  • City: Prague
  • Country: Czech Republic
  • Page Numbers: pp.143-150
  • Istanbul Technical University Affiliated: Yes


In this study, fatigue life prediction and the correlation of Z Type leaf springs were investigated. Leaf springs are tested with different loads until failure and component S-N curve is constructed to take account of process effects. Rate measurement on test rig is completed for first FE correlation. Collected time based strain data is used for the second FE correlation. WFT loads are applied to the FE model hardpoint and compared damage effects so expected test rig specification is determined. After completion of the vehicle durability test, the remaining life of the part is determined via component test rig for third correlation. (C) 2015 The Authors. Published by Elsevier Ltd.