基于碳纤维材料力阻效应的传感器工程应用初探

发布时间：2019-03-20 18:10

【摘要】：碳纤维复合材料(CFRP)的力阻特性已经在实验和理论上获得了较多的探索与验证。将碳纤维与改进配方的基体制成新型的CFRP传感材料,并对其力阻特性进行测试,验证了CFRP作为传感器的可行性,这也是CFRP成为集成承载特性和传感特性的智能材料所必备的条件。然而在实际工程中,承载材料的受力情况远比拉伸试验复杂,因此设计了一项实验,将CFRP传感材料布置于梁内的受拉区,最大限度地模拟受力筋的实际受力情况,测试了CFRP传感材料在实际工程的复杂受力情况下,对荷载、裂缝等结构状态信息的反馈情况。实验结果表明,CFRP传感材料能够较为直观地反映以上结构信息。
[Abstract]:The mechanical and resistive properties of carbon fiber reinforced composites (CFRP) have been investigated and verified both experimentally and theoretically. A new type of CFRP sensing material was made from carbon fiber and modified matrix, and its force-resistance characteristic was tested. The feasibility of using CFRP as sensor was verified. This is also a necessary condition for CFRP to be an intelligent material integrated with load-bearing and sensing properties. However, in the actual engineering, the load-bearing material is much more complicated than the tensile test, so an experiment is designed, in which the CFRP sensing material is arranged in the tensile zone of the beam to simulate the actual stress of the reinforcement to the maximum extent. The feedback of CFRP sensing materials to structural state information such as loads cracks and so on is tested under the complicated stress condition of actual engineering. The experimental results show that the CFRP sensing materials can directly reflect the above structural information.
【作者单位】： 江苏大学土木工程与力学学院;
【基金】：国家自然科学基金项目(51478209);国家自然科学基金青年基金(51508235) 江苏省科技厅基金(BK20140553)
【分类号】：TB332;TQ342.742
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本文编号：2444476