复合固体推进剂损伤演化的声发射检测  

Acoustic Emission Testing for Damage Evolutional of Composite Solid Propellant

作　　者：刘承武[1] 阳建红[1] 张晖[1] 

机构地区：[1]第二炮兵工程学院,陕西西安710025

出　　处：《上海航天》2011年第3期69-72,共4页Aerospace Shanghai

摘　　要：导出了复合固体推进剂材料声发射(AE)累积能量与裂纹扩展间的线性关系,建立了基于声发射累积能量的损伤演化模型。单轴拉伸声发射实验结果验证了该演化模型的正确性,可用于复合固体推进剂材料损伤的研究。The linear relation between the acoustic emission（AE） cumulative energy and the crack propagation of the composite solid propellant was deduced in this paper.The damage evolutional modal described by the AE cumulative energy was established.The results of a uniaxial loaded AE experiment showed that this evolutional modal was correct,which could be used for studying the damage for the composite solid propellant.

关 键 词：复合固体推进剂 声发射 损伤变量 演化模型 

分 类 号：V512.3[航空宇航科学与技术—航空宇航推进理论与工程]