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A novel fatigue monitoring system utilizing bio-inspiration concept of data track of tree rings

  • Shi Bai*
  • , Zhi Zhou
  • , Jinping Ou
  • *Corresponding author for this work
  • School of Civil Engineering, Harbin Institute of Technology
  • Dalian University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The conventional analysis of fatigue damage accumulation based on the whole strain course has defects such as: high cost, difficult to replace the strain sensors, complex system and unadaptable to engineering application et al. The data track of tree rings links the fatigue monitoring and the bio-inspiration concept together. A counter based on Digital Signal Processing (DSP) technology is adopted to record the realtime characteristic of fatigue behavior: the amplitude of strain, the number of cycles and the stress state. Through the realization of the fatigue analysis algorithm by the DSP hardware technique a novel fatigue monitoring system is developed. The data track of tree rings can definitely and increasingly record the environmental characteristic of different environment growing condition, and this fatigue meter can record the local fatigue course: the amplitude of strain, the number of cycles and the stress state. Thus, it is convenient to realize the analysis of fatigue damage accumulation and give an early warning for structures.

Original languageEnglish
Title of host publicationNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
DOIs
StatePublished - 2011
Externally publishedYes
EventNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011 - San Diego, CA, United States
Duration: 7 Mar 201110 Mar 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7983
ISSN (Print)0277-786X

Conference

ConferenceNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
Country/TerritoryUnited States
CitySan Diego, CA
Period7/03/1110/03/11

Keywords

  • Counter
  • DSP
  • Data track of tree rings
  • Fatigue monitoring system

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