Damage Evolution Analysis in a “Spaghetti” Bridge Model Using the Acoustic Emission Technique

Damage Evolution Analysis in a “Spaghetti” Bridge Model Using the Acoustic Emission Technique

This paper applies the Acoustic Emission (AE) Technique to analyze the damage process in a one-meter span bridge model that was built from spaghetti sticks during a loading test. The AE signals are analyzed in terms of four coefficients that are evaluated as predictors of structure failure, with fre...

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Bibliographic Details
Main Authors: Boris Nahuel Rojo Tanzi, Mario Sobczyk, Tiago Becker, Luis Alberto Segovia González, Sabrina Vantadori, Ignacio Iturrioz, Giuseppe Lacidogna
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Applied Sciences
Subjects:
quasi-brittle materials
damage process
acoustic emission
Online Access:https://www.mdpi.com/2076-3417/11/6/2718
Description
Summary:This paper applies the Acoustic Emission (AE) Technique to analyze the damage process in a one-meter span bridge model that was built from spaghetti sticks during a loading test. The AE signals are analyzed in terms of four coefficients that are evaluated as predictors of structure failure, with frequency variation appearing to be the strongest indicator of instability. The AE data are also compared to theoretical predictions that are given by the Bundle Model, confirming that underlying general patterns in damage processes are highly influenced by the geometric distribution of the structure and the loading pattern that is applied to it.
ISSN:2076-3417

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