Flexural ductility and crack-controlling capacity of polypropylene fiber reinforced ECC thin sheet with waste superfine river sand based on acoustic emission analysis

2021 ◽  
Vol 277 ◽  
pp. 122321 ◽  
Author(s):  
Guojin Tan ◽  
Zhiqing Zhu ◽  
Wensheng Wang ◽  
Chunli Wu ◽  
Ji Ou ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Thin Sheet ◽  
Polypropylene Fiber ◽  
Fiber Reinforced ◽  
River Sand ◽  
Emission Analysis ◽  
Flexural Ductility ◽  
Acoustic Emission Analysis

scholarly journals Determination of Fatigue Damage Initiation in Short Fiber-Reinforced Thermoplastic through Acoustic Emission Analysis

2021 ◽  
Vol 5 (8) ◽  
pp. 221
Author(s):  
Janna Krummenacker ◽  
Joachim Hausmann
Keyword(s):  
Acoustic Emission ◽  
Fatigue Loading ◽  
Fiber Reinforced ◽  
Emission Analysis ◽  
Damage Initiation ◽  
Glass Fiber Reinforced ◽  
Stress Threshold ◽  
Strength Tests ◽  
Polyamide 6.6 ◽  
Acoustic Emission Analysis

This study investigates the damage initiation in short glass fiber-reinforced polyamide 6.6 under fatigue loading using acoustic emission analysis. An optimized specimen geometry was developed to meet the specific requirements of this testing method, at the same time allowing further micromechanical studies. Specimens were preloaded with tensile–tensile fatigue loading, varying the maximum stress and the number of load cycles. Subsequently, the acoustic emission signals in residual strength tests were compared to those of undamaged specimens. The idea behind this approach is that only the damage that has not already occurred under fatigue load can be recorded in the residual strength tests. Using the analysis of acoustic energy, a stress threshold for damage initiation was identified. Furthermore, with tension–tension fatigue tests, the SN curve of the material was determined to estimate the lifetime for the identified stress threshold. The presented approach allows us to estimate a so-called endurance limit of short glass fiber-reinforced polyamide 6.6.

In-Situ Observation and Acoustic Emission Analysis for Corrosion Pitting of MgCl2 Droplet in SUS304 Stainless Steel

2012 ◽  
Vol 53 (6) ◽  
pp. 1069-1074 ◽  
Author(s):  
Mitsuharu Shiwa ◽  
Hiroyuki Masuda ◽  
Hisashi Yamawaki ◽  
Kaita Ito ◽  
Manabu Enoki
Keyword(s):  
Stainless Steel ◽  
Acoustic Emission ◽  
Emission Analysis ◽  
Sus304 Stainless Steel ◽  
Corrosion Pitting ◽  
Acoustic Emission Analysis
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