论文信息 - Failure investigation and stress analysis of a longitudinal stringer of an automobile chassis

Failure investigation and stress analysis of a longitudinal stringer of an automobile chassis

Abstract A failure analysis of a longitudinal stringer of a prototype vehicle has been carried out in this study. Failure took place at the bumpers fixation points of the vehicle suspension during durability tests. Crack was created and has grown causing fracture of the component. Stress analysis was performed using finite element method. A reinforcement model to solve the problem was proposed. Experimental quasi-static and durability tests were carried out and failures were no longer observed.

[1] C. W. Mousseau,et al. Using vehicle dynamics simulations and finite-element results to generate ffatigue life contours for chassis components , 1991 .

[2] P. C. Brooks,et al. Review of life assessment techniques applied to dynamically loaded automotive components , 2002 .

[3] Michele Carboni,et al. Defects and in-service fatigue life of truck wheels , 2003 .

[4] Yunan Prawoto,et al. Design and failure modes of automotive suspension springs , 2008 .

[5] E. S. Palma,et al. Fatigue damage analysis on body shell of a passenger vehicle , 2002 .

[6] M. A. Malik,et al. Combining virtual simulation and physical vehicle test data to optimize durability testing , 2002 .

[7] A. M Heyes,et al. Automotive component failures , 1998 .

[8] B. Oelmann. Determination of load spectra for durability approval of car drive lines , 2002 .

[9] H. Bayrakceken,et al. Two cases of failure in the power transmission system on vehicles: A universal joint yoke and a drive shaft , 2007 .

[10] H. Bayrakceken,et al. Fracture of an automobile anti-roll bar , 2006 .

[11] Yves Nadot,et al. Fatigue failure of suspension arm: experimental analysis and multiaxial criterion , 2004 .