Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)
- Volume 18 Issue 2
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- Pages.112-120
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- 1998
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- 1225-7842(pISSN)
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- 2287-402X(eISSN)
Nondestructive Determination of Reinforcement Volume Fractions in Particulate Composites : Eddy Current Method
비파괴적 방법에 의한 입자 강화 복합재료의 부피분율 평가: 와전류법
- Jeong, Hyun-Jo (School of Mechanical Engineering, Pusan National University)
- 정현조 (부산대학교 기계공학부)
- Published : 1998.04.30
Abstract
A nondestructive evaluation technique was developed for the quantitative determination of the reinforcement volume fractions in particulate reinforced metal matrix composites. The proposed technique employed a composite micromechanics which accounts for the microstructure of the composite medium together with the measurement of anisotropic electrical conductivity. When the measured conductivity was coupled with the theoretically predicted conductivity, the unknown reinforcement volume fraction was calculated. An analytical model based on the Mori-Tanaka method was described which relates the NDE signatures to the composite microstructure. The volume fractions were calculated using eddy current measurements made on a wide range of silicon carbide particulate (
입자 보강 복합재료의 부피분율을 평가하기 위한 와전류 비파괴 방법을 제시하였다. 제안된 방법은 복합재의 미시구조를 설명할 수 있는 이론 모델과 와전류에 의한 전기전도도 측정을 필요로 한다. 측정한 전도도를 이론 예측값과 같게 두면 미지의 입자 부피분율이 계산된다. Mori-Tanaka 방법에 기초한 전도도 해석 모델이 소개되어 있다. 이러한 접근 방법을 SiC 입자 보강 Al 기지 (
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