Damage monitoring of cement paste by electrical resistance measurement

2000 ◽  
Vol 30 (12) ◽  
pp. 1979-1982 ◽  
Author(s):  
Sihai Wen ◽  
D.D.L. Chung
Keyword(s):  
Cement Paste ◽  
Electrical Resistance ◽  
Resistance Measurement ◽  
Electrical Resistance Measurement ◽  
Damage Monitoring

Tensile Damage in Carbon Fabric/Epoxy-Matrix Composites Monitored by Electrical Resistance Measurement Combined with AE Technology

2012 ◽  
Vol 460 ◽  
pp. 140-144 ◽  
Author(s):  
Xiao Lin Xie ◽  
Zhen Hong ◽  
Hong Qing Fan ◽  
Hong Ying Quan ◽  
Zhi Peng Li
Keyword(s):  
Growth Rate ◽  
Electrical Resistance ◽  
Epoxy Matrix ◽  
Tensile Load ◽  
Resistance Measurement ◽  
Matrix Composites ◽  
Electrical Resistance Measurement ◽  
Carbon Fabric ◽  
Ae Energy ◽  
Tensile Damage

The influence of tensile load on electrical resistance and acoustic emission (AE) energy of carbon fabric/epoxy-matrix composites were investigated in this study. The experiment results showed that both electrical resistance and AE energy of carbon fabric/epoxy-matrix composites increased with the increase of tensile load. When tensile damage in composites was brought about, the growth rate of AE energy and electrical resistance increased significantly, and the growth rate of AE energy and electrical resistance can be used as the basis of monitoring tensile damage in composites. In addition, compared with AE technology, the electrical resistance measurement by monitoring tensile damage in composites was simpler, and the results were more reliable too.

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