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An integrated CAE system for dynamic stress and fatigue life prediction of mechanical systems

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Abstract

This paper presents computer simulation methodology for dynamic stress time history computation to predict the fatigue life of machine components using flexible multi-body dynamics. A hybrid method which employes stress superposition as a function of constraint loads and component accelerations that are predicted by flexible body dynamic simulation is utilized and implemented using established codes. A system integration methodology for dynamic stress computation of mechanical system components is described to provide a usable environment for an engineer. It uses a database management system such as the IAC and the established dynamics and finite element analysis codes.

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Authors and Affiliations

  1. Dept. of Mechanics and Design, Kookmin University, Seoul, Korea

    Hong Jae Yim

  2. Dept. of Mechanics and Design, Graduate Scool, Kookmin University, Seoul, Korea

    Sang Beom Lee

Authors
  1. Hong Jae Yim
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  2. Sang Beom Lee
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Yim, H.J., Lee, S.B. An integrated CAE system for dynamic stress and fatigue life prediction of mechanical systems. KSME Journal 10, 158–168 (1996). https://doi.org/10.1007/BF02953655

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  • DOI: https://doi.org/10.1007/BF02953655

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