Structural health monitoring of bolted joints using linear and nonlinear acoustic methods

Francesco Amerini, Michele Meo

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

Abstract

The Structural Health Monitoring (SHM) of structures is acquiring a key role in the present time. An in-situ system able to assess the health state of bolted joints would save money and maintenance time, by allowing quick assessment of residual life and degradation state of structures. In this work, linear and nonlinear acoustic/ultrasound techniques were employed to develop a reliable index able to assess the loosening /tightening health state of a bolted structure. The developed indexes were capable of describing the joint behavior at different fastening load. In particular, tightening/loosening state indexes were very well reproduced by an analytical expression where the joint state is expressed as function of the torque applied. The analytical trend approximates the experimental results with excellent correlation.
Original languageEnglish
Title of host publicationProceedings of the 5th European Workshop - Structural Health Monitoring 2010
Pages590-600
Number of pages11
Publication statusPublished - 2010
Event5th European Workshop on Structural Health Monitoring - Sorrento, Italy
Duration: 28 Jun 20102 Jul 2010

Conference

Conference5th European Workshop on Structural Health Monitoring
CountryItaly
CitySorrento
Period28/06/102/07/10

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