Author:
Karthikeyan C.,Venugopal Sivakumar,Gopalan Vijaysankar
Abstract
<div class="section abstract"><div class="htmlview paragraph">Globally, automotive sector is moving towards improving off-road performance, durability and safety. Need of off-road performance leads to unpredictable overload to powertrain system due to unpaved roads and abuse driving conditions. Generally, shafts and gears in the transmission system are designed to meet infinite life. But, under abuse condition, it undergo overloads in both torsional and bending modes and finally, weak part in the entire system tend to fail first. This paper represents the failure analysis of one such an incident happened in output shaft under abuse test condition. Failure mode was confirmed as torsional overload using Stereo microscope and SEM. Application stress and shear strength of the shaft was calculated and found overstressing was the cause of failure. To avoid recurrence of breakage, improvement options were identified and subjected to static torsional test to quantify the improvement level.</div></div>
Reference7 articles.
1. ASM Handbook
Fractography and Atlas of fractographs 12 ASM International 1987
2. ASM Handbook
Failure Analysis and Prevention 11 ASM International 2021
3. Fett , G.A.
15 19 2009
4. Jones , D.R.H.
Materials Failure Analysis – Case Studies and Design Implications Engineering Materials 3 85 95
5. Godec , M. ,
Mandrino , D.J. , and
Jenko , M.
Investigation of the Fracture of a Car’s Drive Shaft Engineering Failure Analysis 16 2009 1252 1261