Wave scattering analysis of bolted joints

David Miller, Santanu Das, Aditi Chattopadhyay, Xu Zhou

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

2 Scopus citations

Abstract

The present research investigates the complex phenomena of wave scattering in bolted joint. The goal is to develop an understanding of the attenuation behavior of propagating waves, through the structure, as the bolt is subjected to different torques. This is a first step towards developing a structural health monitoring technique for detecting torque loss at a bolted joint. To simulate the local effects of the bolt, a micromechanics based model has been developed to model the scattering and attenuation behavior due to a single fiber in a matrix with a circumferential interface crack. A slicing approach is used to account for the effect of multiple interfacial cracks at. different orientations through the depth of the structure, to simulate the global effects of the bolt. The change in wave attenuation as a function of bolt location, at different depths in a plate, is studied. Next, the variation in wave scattering as the bolt, which is now fully embedded in the plate, is subjected to different torque is investigated. The local stress fields that develop in the plate due to the torque are treated as a pre-stress condition and their effect on the resultant wave scattering is investigated using the developed model. The resultant attenuation accounts for the combined effect of the geometrical attenuation and the attenuation due to the pre-stress. Numerical results obtained show small but steady increase in the attenuation with the applied torque. Experiments conducted to validate the developed model show similar trends.

Original languageEnglish (US)
Title of host publicationNondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure V
DOIs
StatePublished - Oct 16 2006
EventNondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure V - San Diego, CA, United States
Duration: Feb 28 2006Mar 2 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6176
ISSN (Print)0277-786X

Other

OtherNondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure V
CountryUnited States
CitySan Diego, CA
Period2/28/063/2/06

Keywords

  • Bolted joint
  • Structural health monitoring
  • Wave scattering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Miller, D., Das, S., Chattopadhyay, A., & Zhou, X. (2006). Wave scattering analysis of bolted joints. In Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure V [617603] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6176). https://doi.org/10.1117/12.658974