Next Article in Journal
The Team Handball Game-Based Performance Test Is Better than the Yo-Yo Intermittent Recovery Test to Measure Match-Related Activities in Female Adult Top-Elite Field Team Handball Players
Previous Article in Journal
Design of an Intelligent Variable-Flow Recirculating Aquaculture System Based on Machine Learning Methods
Previous Article in Special Issue
Computational Study on Interfacial Interactions between Polymethyl Methacrylate-Based Bone Cement and Hydroxyapatite in Nanoscale
Article

Acoustic Emission Testing and Ib-Value Analysis of Ultraviolet Light-Irradiated Fiber Composites

Composite Materials Applications Research Center, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk 55324, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Joonmyung Choi
Appl. Sci. 2021, 11(14), 6550; https://doi.org/10.3390/app11146550
Received: 26 June 2021 / Revised: 14 July 2021 / Accepted: 14 July 2021 / Published: 16 July 2021
The failure behavior of composites under ultraviolet (UV) irradiation was investigated by acoustic emission (AE) testing and Ib-value analysis. AE signals were acquired from woven glass fiber/epoxy specimens tested under tensile load. Cracks initiated earlier in UV-irradiated specimens, with a higher crack growth rate in comparison to the pristine specimen. In the UV-degraded specimen, a serrated fracture surface appeared due to surface hardening and damaged interfaces. All specimens displayed a linearly decreasing trend in Ib-values with an increasing irradiation time, reaching the same value at final failure even when the starting values were different. View Full-Text
Keywords: acoustic emission; fiber-reinforced composite; Ib-value; photodegradation acoustic emission; fiber-reinforced composite; Ib-value; photodegradation
Show Figures

Figure 1

MDPI and ACS Style

Jung, D.; Na, W. Acoustic Emission Testing and Ib-Value Analysis of Ultraviolet Light-Irradiated Fiber Composites. Appl. Sci. 2021, 11, 6550. https://doi.org/10.3390/app11146550

AMA Style

Jung D, Na W. Acoustic Emission Testing and Ib-Value Analysis of Ultraviolet Light-Irradiated Fiber Composites. Applied Sciences. 2021; 11(14):6550. https://doi.org/10.3390/app11146550

Chicago/Turabian Style

Jung, Doyun, and Wonjin Na. 2021. "Acoustic Emission Testing and Ib-Value Analysis of Ultraviolet Light-Irradiated Fiber Composites" Applied Sciences 11, no. 14: 6550. https://doi.org/10.3390/app11146550

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop