DURABILITY ANALYSIS FROM FINITE ELEMENT MODELS
Keywords:
fatigue, finite element analysisAbstract
Fatigue analysis from finite element models is becoming increasingly accepted in the design process. The analysis is no longer limited to fatigue life calculations - output can now include safe working stresses, warranty claim curves, and the effects of high temperatures, manufacturing processes and assembly stresses. This paper des cribes the main features of fatigue analysis from finite element models. It shows how the subsequent fatigue analysis influences the type of FEA and the load cases modeled. The paper also discusses the choice of analysis method, the processing of fatigue loading data, and the information that can be gained from detailed analysis output.
Downloads
References
Bannantine J A, Socie D F. 1989, "A variable amplitude multiaxial fatigue life prediction method". Fatigue under Biaxial and Multiaxial Loading”, Proc. Third International Conference on Biaxial/Multiaxial Fatigue, Stuttgart,. EISI Publication 10, MEP, London.
"Fatigue under biaxial and multiaxial loading", Proc. Third International Conference on Biaxial/Multiaxial Fatigue, Stuttgart, 1989. EISI Publication 10, MEP, London.
Colquhoun C, Draper J. Nov- 2000, “Fatigue analysis of an FEA model of a suspension component, and comparison with experimental data”. Proc. NAFEMS Conference "Fatigue analysis from finite element models", Wiesbaden,.
Conle A and Topper T.H. 1980, “Overstrain effects during variable amplitude service history testing”. International Journal of Fatigue, Vol 2, No.3, pp130-136,
Devlukia J, Davies J. Dec-1985, “Fatigue analysis of a vehicle structural component under biaxial loading”.Biaxial Fatigue Conference, Sheffield University,
Dirlik T. “Application of Computers in Fatigue”. PhD Thesis, University of Warwick, England, 1985
Dong, P., Hong, J.K., Cao, Z.. July, 2001 “A Mesh-Insensitive Structural Stress Procedure for Fatigue Evaluation of Welded Structures” International Institute of Welding, IIW Doc. XIII-1902-01/XV-1089-01.
Dong, P., Hong, J.K., Osage, D., and Prager, M., 2002 “Master S-N Curve Approach for Fatigue Evaluation of Welded Components”, WRC Bulletin, No. 474, , Welding Research Council, New York, New York.
DuQuesnay D.L, Pompetzki M.A, Topper T.H. “Fatigue life prediction for variable amplitude strain Histories”. SAE Paper 930400, Society of Automotive Engineers
Frost N.E, Dugdale D.S, 1957, “Fatigue Tests On Notched Mild Steel Plates With Measurements of Fatigue Cracks”, Journal of the Mechanics and Physics of Solids 5:182-192,
Frost N.E. 1960, “Notch Effects And The Critical Alternating Stress Required To Propagate A Crack In An Aluminium Alloy Subject To Fatigue Loading.”, Journal of Mechanical Engineering Science 2, 109- 119.
Kandil F A, Brown M W, Miller K J, 1982, “Biaxial low cycle fatigue fracture of 316 stainless steel at elevated temperatures”, Book 280, The Metals Society, London,
Kerr W. 1992. Final year undergraduate project. Unpublished.
Malton G, Devlukia J, Draper J. April 2004, “Accelerating fatigue tests by cycle omission – a method which retains the full fatigue damage content.” EIS Simulation, Test and Measurement Conference,. Engineering Integrity Society
Moore H F. 1927, “Manual of Endurance of Metals Under Repeated Stress”, Engineering Foundation Publication Number 13,.
Safe Technology Limited. 1997-2004, “Software Manual for fe-safe” – Fatigue Analysis From Finite Element Models".
Tipton S M, Fash J W, 1989, “Multiaxial fatigue life predictions for the SAE specimen using strain based approaches,”. Multiaxial Fatigue: Analysis and Experiments, SAE AE-14
