PZT 파우더 첨가에 따른 티타늄 파우더/폴리머 콘크리트 복합재료의 진동 특성 및 압축 물성 분석
Effects of PZT Powder on Vibration and Compression Properties of Ti Powder/Polymer Concrete Composites
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
본 연구에서는 기존 폴리머 콘크리트의 진동 감쇠 효과를 향상시키기 위해 압전 재료 중 하나인 PZT 파우더를 첨가하여 티타늄 파우더/폴리머 콘크리트 복합재료를 제작하였다. 티타늄 파우더는 압전 효과를 이용한 진동특성 변화를 극대화하기 위해 일정한 비율로 유지하였고, PZT 파우더를 첨가하지 않은 시편, PZT 파우더를 2.5 wt%, 5 wt% 첨가한 세 가지 종류의 복합재료 시편을 제작하였으며, 모든 시편에 대해 진동 특성 및 압축 물성 분석을 진행하였다. 그 결과, PZT 파우더 첨가 비율이 높아질수록 티타늄 파우더/폴리머 콘크리트에서 발생한 진동이 전달될 때 압전 효과로 인해 공진주파수에서 전달 함수 Inertance 값이 작아지는 것을 확인하였고, 특히 PZT 파우더 5 wt% 첨가 시편의 경우, 공진주파수에서 Inertance 값은 PZT가 첨가되지 않은 시편에 비해 약 19.3% 감소하는 것으로 나타났다. 시간에 따른 가속도 변화 폭 역시 PZT 파우더가 첨가됨에 따라 크게 감소하는 것으로 나타나 PZT 첨가에 따른 효과를 확인할 수 있었다. 또한, 압축강도 시험을 통해 5 wt%까지의 PZT 첨가에 의한 압축 물성 저하 정도는 미미한 것으로 나타났고, 시편 단면 분석을 통해 파우더가 고르게 분산된 것을 확인하였다.
Abstract
In this study, Ti powder/Polymer concrete composites were processed by adding the PZT powder, one of the piezoelectric materials, to improve the vibration damping effect of Polymer concrete. Ti powder was added at aconstant ratio in order to maximize the vibration damping effect using the piezoelectric effect. Three types of composite material specimens were prepared: a specimen without PZT powder, specimens with 2.5 wt% and 5 wt% of PZT powder. The vibration characteristics and compression properties were analyzed for all specimens. As a result, it was confirmed that as the addition ratio of PZT powder increased, the Inertance value at the resonant frequency decreased due to the piezoelectric effect when the vibration generated from Ti powder/polymer concrete was transmitted. Especially, the Inertance value was decreased by about 19.3% compared to the specimen without PZT at the resonant frequency. The change in acceleration with time also significantly decreased as PZT powder was added, confirming the effect of PZT addition. In addition, through the compression strength test, it was found that the degree of deterioration in compression properties due to the addition of PZT up to 5 wt% was insignificant, and it was confirmed that the powder was evenly dispersed in the composites through the cross-sectional analysis of the pecimen.
참고문헌 (14)
- Park, S. H., "Effects of Floor Impact Noise on Psychophysiological Responses", Building and Environment, 116, pp.173~181 (2017)
- Kim, E. S., "Sound and the Korean Public : Sonic Citizenship in the Governance of Apartment Floor Noise Conflicts", Science as Culture, 25(4), pp.538~559 (2016)
- Orak, S., "Investigation of Vibration Damping on Polymer Concrete with Polyester Resin", Cement and Concrete Research, 30(2), pp.171~174 (2000)
- Wong, W. G., "Polymer Effects on the Vibration Damping behavior of Cement", Journal of Materials in Civil Engineering, 15(6), pp.554~556 (2003)
- 김성준, "방향성 있는 감쇠재료가 삽입된 복합적층판의 진동 및 감쇠특성", Composites Research, 16(5), pp.39~44 (2003), 한국복합재료학회
- Abdel-Fattah, H., "Flexural Behavior of Polymer Concrete", Construction and Building Materials, 13(5), pp.253~262 (1999)
- Gorninski, J. P., "Study of the Modulus of Elasticity of Polymer Concrete Compounds and Comparative Assessment of Polymer Concrete and Portland Cement Concrete", Cement and Concrete Research, 34(11), pp.2091~2095 (2004)
- Vipulanandan, C., "Characterization of Polyester Polymer and Polymer Concrete", Journal of Materials in Civil Engineering, 5(1), pp.62~82 (1993)
- Jo, B. W., "Mechanical Properties of Nano-MMT Reinforced Polymer Composite and Polymer Concrete", Construction and Building Materials, 22(1), pp.14~20 (2008)
- 김정진, "고 감쇠 폴리머 콘크리트의 진동 특성에 관한 해석적 연구", 한국구조물진단유지관리공학회 논문집, 24(5), pp.119~125 (2020), 한국구조물진단유지관리공학회
- 김정진, "폴리머 콘크리트의 진동저감 특성에 대한 실험적 연구", 한국구조물진단유지관리공학회 논문집, 23(7), pp.58~65 (2019), 한국구조물진단유지관리공학회
- Kim, S. Y., "Effects of PZT Particle-enhanced Ply Interfaces on the Vibration Damping Behavior of CFRP Composites", Composites Part A : Applied Science and Manufacturing, 42(10), pp.1477~1482 (2011)
- Zhang, C. H., "Damping Behavior and Acoustic Performance of Polyurethane", lead Zirconate Titanate Ceramic Composites, 2013, pp.46, 503~510
- Yang, Z., "Effect of the Particle Size and Matrix Strength on Strengthening and Damage Process of the Particle Reinforced Metal Matrix Composites", Materials, 14(3), pp.675~ (2021)