Research of Acoustic Emission Testing Method with Application to Monitored for Wind Turbines

2015 ◽  
Vol 10 (1) ◽  
pp. 109-118 ◽  
Author(s):  
Hongwu Qin ◽  
Chao Zhang ◽  
Xian Zhang ◽  
Qinyin Fan
Keyword(s):  
Acoustic Emission ◽  
Wind Turbines ◽  
Testing Method ◽  
Emission Testing ◽  
Acoustic Emission Testing

Acoustic emission testing method for the sleeve grouting compactness of fabricated structure

2019 ◽  
Vol 221 ◽  
pp. 800-810 ◽  
Author(s):  
Yuefei Ma ◽  
Shengli Li ◽  
Yanqi Wu ◽  
Dongwei Wang ◽  
Meiyu Liu
Keyword(s):  
Acoustic Emission ◽  
Testing Method ◽  
Emission Testing ◽  
Acoustic Emission Testing

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

2021 ◽  
Vol 11 (14) ◽  
pp. 6550
Author(s):  
Doyun Jung ◽  
Wonjin Na
Keyword(s):  
Acoustic Emission ◽  
Irradiation Time ◽  
Tensile Load ◽  
Failure Behavior ◽  
Value Analysis ◽  
Emission Testing ◽  
Final Failure ◽  
Acoustic Emission Testing ◽  
Woven Glass Fiber ◽  
Ae Signals

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.

Sign in / Sign up

Export Citation Format

Share Document