All Categories : Technical White Papers : CAE and FEA Bookmark and Share

Title : The Effects of Overload on the Fatigue Life
Company : SIMULIA
File Name : the-effects-of-overload-on-the-fatigue-life-2010.pdf
Size : 27891
Type : application/pdf
Date : 09-Jul-2011
Downloads : 2

Rate This File
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Automotive vehicles undergo various ranges of road loads according to the driving conditions. Sometimes it experiences unusually large overload such as pot-hole impact or curb strike whose forces are several times of the vehicle weight. Those overloads may induce plastic deformations at some components and these plastic deformations reduce the fatigue life of the components. In some cases, the fatigue crack initiation points may be changed due to the residual stresses which were generated by the overloads. Predicting the fatigue life by general fatigue analysis methodology, which uses linear stress analysis results and linear damage accumulation rule, is very difficult if any component contains residual stresses. This study was performed to assess the effects of overload on the fatigue behavior of automotive suspension components and to develop a fatigue analysis methodology predicting the fatigue life under overload. Fatigue tests were performed for aluminum knuckle with the application of single overload whose magnitude is large enough to generate plastic deformations on the knuckle. The fatigue life of knuckle was reduced and crack initiation points were changed after applying single overload. Those phenomena could not be predicted by adopting linear stress analysis and Miner’s linear damage accumulation rule. By using non-linear stress analysis results and considering residual stress, it was satisfactory to predict the reduction of fatigue life and change of crack initiation points.
User Reviews More Reviews Review This File
SolidCAM - Learn More

Featured Video
Editorial
Latest Blog Posts
Marcin SzymańskIMCADCafe Editorial
by Marcin SzymańskI
Industry Predictions for 2020 – VShaper
Jobs
GIS Developer for GeoDecisions at Vienna, Virginia
GIS Developer for GeoDecisions at St. Charles, Missouri
Senior Level Developer for GeoDecisions at Raleigh, North Carolina
Mid-Level Developer for GeoDecisions at Raleigh, North Carolina
Business Analyst for GeoDecisions at Raleigh, North Carolina
Dev/Ops Developer for GeoDecisions at O'Fallon, Illinois
Upcoming Events
AHR Expo at Orange County Convention Center West Building Orlando FL - Feb 3 - 5, 2020
Design & Manufacturing at Anaheim Convention Center Anaheim CA - Feb 11 - 13, 2020
PLASTEC West — The Proof Is in the Plastics at Anaheim Convention Center 800 W. Katella Avenue, Anaheim CA - Feb 11 - 13, 2020
Manufacturing Automation Asia at Singapore Singapore - Feb 20 - 21, 2020
Kenesto: 30 day trial
MasterCAM



Internet Business Systems © 2020 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise