광센서에 의한 탄소섬유/에폭시 복합재료의 경화신호 측정

서광석; 이형재; 박종현; 문탁진; 박진우; 안규종

Polymer(Korea), Vol.18, No.4, 568-575, July, 1994

Export Citation

광센서에 의한 탄소섬유/에폭시 복합재료의 경화신호 측정

In-situ Monitoring of Curing of Carbon Fiber/Expoxy Composite by an Optical Fiber Sensor

서광석, 이형재, 박종현, 문탁진, 박진우, 안규종

초록

다중모드 광섬유 센서를 이용하여 탄소섬유/에폭시 프리프레그의 consolidation 공정시 발생되는 광신호를 검출하였고 이 신호를 경화반응에 따른 기계적 압축현상과 연관하여 해석하였다. 검출된 신호는 4구간으로 나눌 수 있는데, 이 구간들은 에폭시의 용융, 경화반응, 경화 후 응력완화 및 냉각과정 등에 의한 것으로 해석하였다. 본 연구에서 사용한 다중모드 광섬유는 복합재료의 경화특성 연구에 사용될 수 있으며, 특히 비파괴적인 In-situ 시험에 적합한 방법이라고 믿어진다.

Light signal generated during the curing process of carbon fiber/epoxy composite has been detected by an internally embedded multimode optical fiber sensor The observed signal is then interpreted in conjunction with the mechanical compression behavior of the fiber/matrix composite system by the cure reaction of the epoxy resin matrix during curing process. The detected signal could be characterized by the flowing of epoxy, the crosslinking reaction, stress release after crosslinking reaction and the cooling process. Therefore, a multimode optical fiber can be utilized as a sensor for an in-situ monitoring of the characteristics of fiber-reinforced composites under curing process.

[References]

Wienko JA, Claus RO, Rogers RE, Sensors Expo Proceedings, 257-261 (1987)
Measures RM, Compos. Eng., 2(5-7), 597 (1992)
Measures RM, Liu K, IEEE Trans. Circuits Devices, 37 (1992)
Klosterman DA, Saliba TE, "Development of an in-situ Fiber Optic Sensor for on-line Void Detection and Control," SAMPE Symposium, 1322-1332 (1993)
Davis CM, Opt. Eng., 24(2), 347 (1985)
Afromowitz MA, J. Lightwave Tech., 6(10), 1591 (1988)
Harrold RT, Sanjana ZN, J. Polym. Eng. Sci., 26(5), 367 (1986)
Young PR, Druy MA, Stevenson WA, Compton DAC, J. SAMPE, 25(2), 11 (1989)
Suh KS, Lee CR, Park KH, Park JW, Polym.(Korea), 16(1), 15 (1992)
Lee HJ, Suh KS, Park JW, Kim WS, "Study on Curing Behavior of Fiberrein-forced Composite Using optical Fiber Sensor," 한국고분자학회 춘계학술대회 (1993)
Park JH, Lee HJ, Suh KS, Kim WS, Park JW, "Study on Fracture Behavior of Fiber Reinforced Composite using optical Fiber Sensor," 한국고분자학회 추계학술대회 (1993)
Park JH, Lee HJ, Suh KS, Kim WS, Park JW, "Detection of Impact on Carbon Fiber/Epoxy Composite Material using Optical Fiber Sensor," 한국고분자학회 추계학술대회 (1993)
Bergulund LA, Kenny JM, J. SAMPE, 27(2), 32 (1991)

[Referenced By]

[1] Wienko JA, Claus RO, Rogers RE, Sensors Expo Proceedings, 257-261 (1987)

[2] Measures RM, Compos. Eng., 2(5-7), 597 (1992)

[3] Measures RM, Liu K, IEEE Trans. Circuits Devices, 37 (1992)

[4] Klosterman DA, Saliba TE, "Development of an in-situ Fiber Optic Sensor for on-line Void Detection and Control," SAMPE Symposium, 1322-1332 (1993)

[5] Davis CM, Opt. Eng., 24(2), 347 (1985)

[6] Afromowitz MA, J. Lightwave Tech., 6(10), 1591 (1988)

[7] Harrold RT, Sanjana ZN, J. Polym. Eng. Sci., 26(5), 367 (1986)

[8] Young PR, Druy MA, Stevenson WA, Compton DAC, J. SAMPE, 25(2), 11 (1989)

[9] Suh KS, Lee CR, Park KH, Park JW, Polym.(Korea), 16(1), 15 (1992)

[10] Lee HJ, Suh KS, Park JW, Kim WS, "Study on Curing Behavior of Fiberrein-forced Composite Using optical Fiber Sensor," 한국고분자학회 춘계학술대회 (1993)

[11] Park JH, Lee HJ, Suh KS, Kim WS, Park JW, "Study on Fracture Behavior of Fiber Reinforced Composite using optical Fiber Sensor," 한국고분자학회 추계학술대회 (1993)

[12] Park JH, Lee HJ, Suh KS, Kim WS, Park JW, "Detection of Impact on Carbon Fiber/Epoxy Composite Material using Optical Fiber Sensor," 한국고분자학회 추계학술대회 (1993)

[13] Bergulund LA, Kenny JM, J. SAMPE, 27(2), 32 (1991)