Paper Title:
Acoustic Emission Characteristics of Single-Edge-Notched Glass Fiber/Aluminum Hybrid Laminates
  Abstract

Acoustic emission (AE) characteristics have been studied for single-edge-notched monolithic thin aluminum (Al) plates and glass fiber/Al hybrid laminates. Traveling microscope was used for observing the plastic deformation and damage zone around the initial notch tip. Frequency characteristics of AE signals processed by fast Fourier transform (FFT) from monolithic Al could be classified into two different types. Type I signal had a relatively low frequency band of 96~260kHz, while Type II signal had broad band frequencies of 192~408kHz. In case of glass fiber/Al hybrid laminates, AE signals with high amplitude (>80dB) and long duration (>2msec) were additionally confirmed on FFT frequency analysis, which corresponded to macro-crack propagation and/or delamination between aluminum layer and glass fiber layer. Also, distributions of the first and the second peaks in frequency spectrum were related with local fracture behaviors of the hybrid laminates. AE source location determined by signal arrival time showed the extent of fracture zones. On the basis of the above AE analysis, characteristic features of fracture processes of single-edge-notched glass fiber/aluminum laminates were elucidated according to different fiber orientations.

  Info
Periodical
Key Engineering Materials (Volumes 306-308)
Edited by
Ichsan Setya Putra and Djoko Suharto
Pages
19-24
DOI
10.4028/www.scientific.net/KEM.306-308.19
Citation
S. C. Woo, D. J. Kim, N. S. Choi, "Acoustic Emission Characteristics of Single-Edge-Notched Glass Fiber/Aluminum Hybrid Laminates", Key Engineering Materials, Vols. 306-308, pp. 19-24, 2006
Online since
March 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Qian Feng, Shao Ming Dong, Yu Sheng Ding, Qing Zhou, Akira Kohyama
Abstract:Chopped fiber and a hybrid reinforcement of chopped and continuous fibers were used for fabricating SiC/SiC composites. Under the selected...
1257
Authors: Joon Hyun Lee, Jeong Guk Kim
Abstract:The fracture behavior of Nicalon fiber reinforced calcium aluminosilicate (CAS) glass-ceramic matrix composites (Nicalon/CAS) was...
825
Authors: Xiao Jun Shao, Zhu Feng Yue
Abstract:Compressive experiments and finite element method (FEM) have been used to study the mechanical behavior of composite laminate with plies...
301
Authors: Xiao Bin Song, Hong Yong Tang, Wei Ping Zhang, Xiang Lin Gu
Abstract:This paper presents the results of an experimental study on the compressive stress-strain relationship of wood confined with fiber composite...
1207