Concurrent structural and material fatigue damage prognosis integrating sensor data Special

Jingjing He, Xuefei Guan, Yongming Liu

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

Abstract

In this paper, a novel method for concurrent structural and material fatigue crack growth analysis integrating sensor data is proposed. The proposed method is based a strain responses reconstruction algorithm for a dynamic system and a time-based fatigue crack growth formulation. The dynamic reconstruction is based on the empirical mode decomposition with intermittency criteria and transformation equations derived from finite element modeling. The structural responses measured from remote locations decomposed into modal responses using empirical mode decomposition. Transformation equations based on finite element modeling are employed to extrapolate the modal responses from the measured locations to critical locations where fatigue damage is likely to occur. The fatigue prognosis problem at the structural and material level is expressed as a set of coupled hirachical state-space functions. Concurrent analysis for a frame strcutrue is demonstrated and discussions are given based on the simulation results.

Original languageEnglish (US)
Title of host publication54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
StatePublished - Aug 15 2013
Event54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Boston, MA, United States
Duration: Apr 8 2013Apr 11 2013

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Other

Other54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityBoston, MA
Period4/8/134/11/13

ASJC Scopus subject areas

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    He, J., Guan, X., & Liu, Y. (2013). Concurrent structural and material fatigue damage prognosis integrating sensor data Special. In 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference [AIAA 2013-1500] (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference).