【摘要】 结合碳纤维增强树脂的强度特性与光纤布拉格光栅的传感特性研制开发出具有变形自感知能力的智能碳纤维复合板。在介绍内嵌光纤传感器的碳纤维复合板制作工艺的基础上,利用自制张拉反力架和钢筋混凝土梁进行智能碳纤维板的感知性能试验,获取包括灵敏度、线性度、重复性、迟滞性以及准确度等传感性能指标。研究结果表明:智能碳纤维板具有良好的线性度与重复性,测试精度高,是集感知和受力、功能材料和结构材料于一体的新型土木工程智能材料,既可以方便地作为混凝土结构的加固装配件,又可作为其表面的传感器件,具有良好的工程应用前景。更多还原

【Abstract】 A smart composite plate, combined with the strength properties of carbon fiber reinforced polymer(CFRP) and the self-sensing properties of Fiber Bragg Grating(FBG), has been developed. Its fabrication process has been briefly introduced and its sensing properties,such as sensitivity, linearity, repeatability, hysteresis and precision, have been studied through calibration experiment on specially designed reaction frames and reinforced concrete beams. The experimental results show that this smart plate is a novel smart material for civil engineering with good linearity and repeatability, high testing precision and that combines sense with stress and functional materials with structural materials, and also a reinforcement assembly for concrete structure and a sensing device mounted on its surface. It possesses a good prospect of engineering applications.更多还原