This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
On Material Substitution and Quick Fatigue Life Estimates Thereof in Chassis Frames
Technical Paper
2011-26-0102
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2011
Language:
English
Abstract
Commercial vehicle industry is often provoked to assess suitability of the most currently available steels in lieu of traditionally used ones. Such material substitutions are attempted even if the existing ones happen to be tried, tested and proven over a period of time. Motivation for an exercise of this sort is usually from the considerations of favorable cost, availability, manufacturability, durability, strength-to-weight ratio, etc. A rigorous route to carry-out such a feasibility study would be through physical prototyping and testing. This is usually an expensive and time consuming proposition. Virtual analysis, on the other hand is a more viable option. This paper proposes an even easier alternative of using the available test data to estimate fatigue life of an identical component made of a different material through use of established rules such as Neuber's. The results obtained are quite satisfactory and offer an acceptable methodology to assess improvement in fatigue life due to alternate steels without taking recourse to either ground-up physical testing or numerical analyses.
Authors
Topic
Citation
Mangalaramanan, S., Purushothaman, D., and Palaniappan, A., "On Material Substitution and Quick Fatigue Life Estimates Thereof in Chassis Frames," SAE Technical Paper 2011-26-0102, 2011, https://doi.org/10.4271/2011-26-0102.Also In
References
- Basquin, O H “The Exponential Law of Endurance Tests” American Society of Testing Materials 10 625 630 1910
- Manson, S S “Fatigue: a Complex Subject-some Simple Approximations” Exp Mech J Soc Exp Stress Anal 1965 5 7 193 226
- Neuber, H “Theory of Stress Concentration for Shear-Strained Prismatical Bodies with Arbitrary Non-linear Stress-StrainLaw” Trans ASME, J. Appl. Mech. 28 1961 544 550
- Molski, K Glinka, G “A Method of Elastic-Plastic Stress and Strain Calculation at a Notch Root,” Mater. Sci.Engng 50 1981 93 100
- Ashok Leyland internal reports for properties of BSK46 and ISO2062 steels 2009
- Retooling Manufacturing: Bridging Design, Materials, and Production 0-309-09266-3 The National Academies Press 2004
- Dieter, George E “Mechanical Metallurgy, Third Edition” McGraw-Hill Series in Materials Science and Engineering 1986
- Peterson, R E “Stress Concentration Factors” John Wiley & Sons 1974