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Notches without Notch Stresses: An Application of Biological Optimization Mechanisms on Engineering Components
Technical Paper
2001-01-3252
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Quite a few of the failures in engineering components are caused by stress concentrations located in notches. A reduction of these notch stresses will result in high fatigue resistance of a component. This is obtained by modifying the shape of the notch by applying a design rule which is based on the axiom of uniform stress. Using a combination of latter axiom and the finite element method, an optimization tool has been developed, which is used optimize the shape of notches. In this paper an extract of a parameter study will be presented, which compares several shoulder fillets of a shaft, which was subjected to bending, concerning the stress reduction obtained by the fillets.
Authors
Citation
Scherrer, M. and Mattheck, C., "Notches without Notch Stresses: An Application of Biological Optimization Mechanisms on Engineering Components," SAE Technical Paper 2001-01-3252, 2001, https://doi.org/10.4271/2001-01-3252.Also In
References
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- Pilkey, W.D. Peterson's stress concentration factors John Wiley & Sons 1997
- Grodzinski, P. Investigation on shaft fillets Engineering (London) 152 321 1941
- Berkey, D.C. Reducing stress concentration with elliptical fillets Proc. Soc. Exp. Stress Analysis 1 2 56 1944