CAJ | 학술논문

介绍了复合材料结构在高温地面力热试验的环节面临的挑战.针对结构在高温条件下应变测量和损伤预测的难点,进行了高温声发射(AE)测试技术的研究,以 CMC 材料为例总结了载荷条件下AE信号的特点,介绍了在典型结构试验中的应用.最后提出了今后进一步发展的方向.
개소료복합재료결구재고온지면력열시험적배절면림적도전.침대결구재고온조건하응변측량화손상예측적난점,진행료고온성발사(AE)측시기술적연구,이 CMC 재료위례총결료재하조건하AE신호적특점,개소료재전형결구시험중적응용.최후제출료금후진일보발전적방향.
In this paper, the challenge of ground experiment in thermal-mechanical coupling environment for composite structure is introduced. For structure in high-temperature environment, it is very difficult to measure the strain and to monitor the damage. So the application of acoustic emission (AE) technique in high-temperature environment is discussed. As an example, characters of AE signal of CMC material (C/SiC) in thermal-mechanical coupling condition is summarized. And AE technique application for typical structure is introduced. Finally, the further development direction of AE technique is inducted.