摘要
本文在对混凝土受载后不同阶段的声发射机理进行分析的基础上，根据不同阶段的声发射特征，导出了声发射参数与损伤参量之间的关系及用声发射参数表示损伤的混凝土在一维状态下的本构方程。从而提出，可根据混凝上受载后的声发射特征来评价和估计混凝土材料的损伤程度。分析结果能较好地与混凝土的实际相吻合。
Based on the acoustic emission (AE) mechanics of concrete loaded at different stages, by using the AE characteristics at different stages, the relationships between parameters of AE and damage have been derived, the 1-dimensional eonstitutive relation of concrete, in which its damage parameters are expressed by AE parameters, is also obtained. Therefore, it is proPOsed that the damage degree of concrete can be evaluated and estimated by using AE characteristics. The analytical results coincide quite well with the actuality of concrete.
出处
《声学学报》
EI
CSCD
北大核心
1996年第4期601-608,共8页
Acta Acustica
基金
国家教委博士点基金
