What is it about?
This articles shows an idea for determining the fatigue-crack length of any critical structure without physically observing the crack. It uses the recorded acoustic wave signals emanating from the fatigue crack growth. In this article we showed a phenomenon called "crack resonance" that could be an useful parameter to do this. We observed this phenomenon from the numerical simulation as well as the laboratory experiment.
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Why is it important?
This will allow monitoring the fatigue-crack, a most common damage of any engineering structure. Beyond just monitoring, it will tell us the quantitative information of the crack so that one can assess the critical situation of the structure before the catastrophic failure. We presented a next generation method for assessing the criticality of structure by analyzing the acoustic waves, which is a unique work.
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This paper introduces a new idea that will help the readers in this area of interest.
Md Yeasin Bhuiyan
Read the Original
This page is a summary of: Toward identifying crack-length-related resonances in acoustic emission waveforms for structural health monitoring applications, Structural Health Monitoring, May 2017, SAGE Publications,
DOI: 10.1177/1475921717707356.
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