Experimental investigation of compressive damage mechanisms on 3-D braided composites by acoustic emission

2007 ◽  
Author(s):  
Shi Yan ◽  
Lin-zhi Wu ◽  
Yu-guo Sun ◽  
Shan-yi Du
Keyword(s):  
Experimental Investigation ◽  
Acoustic Emission ◽  
Braided Composites ◽  
Damage Mechanisms ◽  
Compressive Damage

Investigation of Compressive Damage Mechanisms in 3D Braided Composites by the Acoustic Emission Events Energy and Amplitude

2013 ◽  
Vol 274 ◽  
pp. 393-397 ◽  
Author(s):  
Shi Yan ◽  
Shi Dong Pan ◽  
Dong Hua Li ◽  
Ji Cai Feng
Keyword(s):  
Acoustic Emission ◽  
Deformation Behavior ◽  
Compressive Loading ◽  
Damage Mechanism ◽  
Braided Composites ◽  
Damage Mechanisms ◽  
3D Braided Composites ◽  
Damage Process ◽  
Compressive Damage ◽  
Fracture Growth

The deformation behavior and damage mechanism of 3-D carbon/epoxy braided composites with different braiding angles under the monotonic compressive loading are investigated by the acoustic emission (AE) technique. The damage process is divided into several different regions based on the change of the accumulative AE event counts. Correlations between the damage mechanisms and the AE results are established in terms of the events energy and amplitude. These correlations can be used to monitor the fracture growth process in the braided composites. Experimental results reveal that the AE technique is an effective tool for identifying damage mechanisms.

Identification of damage mechanisms in cement paste based on acoustic emission

2018 ◽  
Vol 164 ◽  
pp. 286-296 ◽  
Author(s):  
Rafal Anay ◽  
Vafa Soltangharaei ◽  
Lateef Assi ◽  
Timothy DeVol ◽  
Paul Ziehl
Keyword(s):  
Acoustic Emission ◽  
Cement Paste ◽  
Damage Mechanisms
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