Hegedűs Gergely, Sarkadi Tamás, Czigány Tibor
Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.
Department of Atomic Physics, Faculty of Natural Sciences, Budapest University of Technology and Economics, Budafoki út. 8, H-1111 Budapest, Hungary.
Materials (Basel). 2017 Jun 10;10(6):637. doi: 10.3390/ma10060637.
This goal of our research was to show that E-glass fiber bundles used for reinforcing composites can be enabled to transmit light in a common resin without any special preparation (without removing the sizing). The power of the transmitted light was measured and the attenuation coefficient, which characterizes the fiber bundle, was determined. Although the attenuation coefficient depends on temperature and the wavelength of the light, it is independent of the power of incident light, the quality of coupling, and the length of the specimen. The refractive index of commercially available transparent resins was measured and it was proved that a resin with a refractive index lower than that of the fiber can be used to make a composite whose fibers are capable of transmitting light. The effects of temperature, compression of the fibers, and the shape of fiber ends on the power of transmitted light were examined. The measurement of emitted light can provide information about the health of the fibers. This can be the basis of a simple health monitoring system in the case of general-purpose composite structures.
我们这项研究的目标是表明，用于增强复合材料的E玻璃纤维束无需任何特殊处理（无需去除浸润剂）就能在普通树脂中传输光线。测量了传输光的功率，并确定了表征纤维束的衰减系数。尽管衰减系数取决于温度和光的波长，但它与入射光的功率、耦合质量以及样品长度无关。测量了市售透明树脂的折射率，并证明可以使用折射率低于纤维的树脂来制造其纤维能够传输光的复合材料。研究了温度、纤维压缩以及纤维末端形状对传输光功率的影响。对发射光的测量可以提供有关纤维健康状况的信息。在通用复合结构的情况下，这可以成为一个简单的健康监测系统的基础。
