Study of variation in natural frequencies of bio-composites due to structural damage. (1st October 2020)

• Record Type: Journal Article
• Authors: Shah, Aarsh J.; Pandya, Tejas S.; Street, Jason
• Is Part Of: International wood products journal. Volume 11:Number 4(2020)
• Page Start: 166
• Page End: 172
• Publication Date: 2020-10-01
• Subjects: Natural frequency -- damage -- wood-composites -- bio-composites -- modal analysis -- FEA -- Southern Yellow Pine (SYP); Wood -- Periodicals; Periodicals; 620.1205
• DOI: 10.1080/20426445.2020.1780383
• Languages: English
• ISSNs: 2042-6445

Abstract

ABSTRACT: The purpose here is to study the variation in the natural frequency of a material due to damage. Also, compare the shift in Natural Frequency that of a SYP-SP (Sweet Potato) bio-composite to a commercial SYP composite. Additionally, the motivation behind the study is to eventually provide biodegradable materials, as petroleum-based products being a finite resource and having more potential to harm the environment. The researcher obtained the Natural Frequencies by Experimental modal analysis using a cantilever beam vibration technique. The shift for the first three natural frequencies for damage induced SYP-SP composite was 10%, 8.6%, and 9.5% and for SYP-Commercial composite was 7.95%, 0.7%, and 0.9% respectively. The undamaged specimens of SYP-SP bio-composite and that of a commercial SYP composite showed behaviour almost on similar lines. Thus, stating the potential use of SYP-SP bio-composite for commercial applications like wood flooring, fencing, and other related applications.