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Nominal Stress Calculation Based on FEA Element Nodal Forces
Technical Paper
2018-01-1898
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Engineering Stress, also known as Nominal Stress, is used in material testing, to quantify load carrying characteristics and abilities, such as ultimate tensile strength (UTS), modulus of rupture (under bending), yield strength, etc. Standard testing, however, is limited to regular cross-section shapes (rectangular, circle, etc.). In engineering applications, however, geometry and loading are typically much more complex. While FEA can be used to calculate local stress concentrations, the underlying Nominal Stress is not known. This paper introduces a method to calculate nominal stresses, based on FEA element nodal forces. Internal testing results of FCD500 (common material for brake components) bars, with and without notches, will be presented. Corresponding Nominal Stresses and local stress concentrations will be discussed, along with testing results.
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Authors
Citation
Lee, L., Ball, C., and Lou, G., "Nominal Stress Calculation Based on FEA Element Nodal Forces," SAE Technical Paper 2018-01-1898, 2018, https://doi.org/10.4271/2018-01-1898.Data Sets - Support Documents
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References
- ASTM E8/E8M-16a 2016 www.astm.org
- ASM International Tensile Testing Second Materials Park ASM International 2004
- Pilkey , W.D. Petersons’s Stress Concentration Factors Second New York John Wiley & Sons 1997
- ASTM D6272-98 1998 www.astm.org