scholarly journals Measurement of Electrical Resistance Method in Characterizing the Slip ratio of Carbon fiber/Matrix at the Interface

2012 ◽  
Vol 25 (6) ◽  
pp. 205-210
Author(s):  
Dong-Jun Kwon ◽  
Zuo-Jia Wang ◽  
Ga-Young Gu ◽  
Joung-Man Park
Keyword(s):  
Carbon Fiber ◽  
Electrical Resistance ◽  
Slip Ratio ◽  
Resistance Method ◽  
Fiber Matrix

Electromechanical study of carbon fiber composites

1998 ◽  
Vol 13 (11) ◽  
pp. 3081-3092 ◽  
Author(s):  
Xiaojun Wang ◽  
Xuli Fu ◽  
D. D. L. Chung
Keyword(s):  
Carbon Fiber ◽  
Electrical Resistance ◽  
Fiber Composites ◽  
Single Fiber ◽  
Fiber Direction ◽  
Carbon Fiber Composites ◽  
Fiber Waviness ◽  
Pull Out ◽  
The Matrix ◽  
Fiber Matrix

Electromechanical testing involving simultaneous electrical and mechanical measurements under load was used to study the fiber-matrix interface, the fiber residual compressive stress, and the degree of marcelling (fiber waviness) in carbon fiber composites. The interface study involved single fiber pull-out testing while the fiber-matrix contact electrical resistivity was measured. The residual stress study involved measuring the electrical resistance of a single fiber embedded in the matrix while the fiber was subjected to tension through its exposed ends. The marcelling study involved measuring the electrical resistance of a composite in the through-thickness direction while tension within the elastic regime was applied in the fiber direction.

Corrosion Measuring Probes for Marine Applications

CORROSION ◽  
1961 ◽  
Vol 17 (10) ◽  
pp. 485t-491t ◽  
Author(s):  
DAVID ROLLER ◽  
WILLARD R. SCOTT ◽  
HERMAN S. PREISER ◽  
FRANK E. COOK
Keyword(s):  
Electrical Resistance ◽  
Structural Members ◽  
Condenser Tube ◽  
Exterior Surface ◽  
Preliminary Testing ◽  
Resistance Method ◽  
Service Testing ◽  
Inlet Tube ◽  
Actual Operation ◽  
Marine Applications

Abstract This paper describes the design, fabrication and preliminary testing of several types of corrosion measuring probes developed for use on maritime vessels. The probes are part of a system utilizing the electrical resistance method for continuously monitoring corrosion during actual operation. One type of probe to be described is intended for monitoring corrosion on either the exterior surface of the hull or interior structural members in large compartment. Another probe has been developed for measuring condenser tube inlet (tube end) corrosion. A third probe has been developed for measuring corrosion in crevices and pipe lines. Both laboratory and simulated service testing has been carried out. Results of these tests and the effectiveness of the probes in measuring corrosive conditions on ships are discussed. 2.4.2

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