Multi-scale modeling and experimental validation for component fatigue life prediction

Sunilkumar Soni, Aditi Chattopadhyay, Wei Jun, Pedro Peralta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

A fatigue failure prediction procedure is discussed based on a two scale micro meso mechanical model for metallic structures. This model predicts the fatigue life and accounts for physical quantities like the mean stress effect in high cycle fatigue. Another model developed at meso-scale level with BCJ (Bammann, Chiesa and Johnson, 1996, Theoretical and Applied Mechanics, Tatsumi, Watanabe and Kambe (Editors), 359-376) internal state variables, is used to predict progressive damage in ductile materials. This meso-scale model is incorporated within the general purpose finite element software ABAQUS through a user subroutine VUMAT. A lug joint specimen is simulated using the BCJ model modified for fatigue and the location of the crack initiation sites is found. Experiments are conducted with the lug joint specimen under fatigue loading and the models are validated for the fatigue life prediction and location of the damage sites.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE 2007
Pages21-27
Number of pages7
DOIs
StatePublished - 2008
EventASME International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, WA, United States
Duration: Nov 11 2007Nov 15 2007

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
Volume12

Other

OtherASME International Mechanical Engineering Congress and Exposition, IMECE 2007
CountryUnited States
CitySeattle, WA
Period11/11/0711/15/07

ASJC Scopus subject areas

  • Engineering(all)
  • Mechanical Engineering

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  • Cite this

    Soni, S., Chattopadhyay, A., Jun, W., & Peralta, P. (2008). Multi-scale modeling and experimental validation for component fatigue life prediction. In Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE 2007 (pp. 21-27). (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 12). https://doi.org/10.1115/IMECE2007-42610