Abstract
Objectives: This paper presents a health monitoring criteria development aspect based on the frequency response spectrum under axial compressive load on wooden samples. Methods/Statistical Analysis: The compression tests are performed on different wooden specimens as per IS:1708 (Part VIII and IX):1986. The impact echo test is conducted at certain load intervals under increased compressive load and the frequency spectrum was monitored. A MATLAB based code is used to calculate the dominant frequency values of the sound signals corresponding to each impact echo test. The graphs for frequency and compressive load are plotted for different samples. Findings: Interesting conclusions were obtained from the frequency plots under compressive load before failure and after failure. It was observed that loading decreases the frequency values. But at the point of initial major crack, frequency was increased due to length reduction. Applications/Improvements: A health monitoring criteria can be developed based on the frequency response trends by observing these increased value of frequency when tested on the wooden samples. The damaged and undamaged state were predicted successfully.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.