摘要
在长期荷载作用下混凝土结构中会存在损伤,利用波传播理论,采用脉冲谱技术并结合正则化思想,针对几种典型损伤模型,在瞬态波场中对损伤进行了反演的数值模拟计算,考虑先验信息使反演结果得到明显改进,并得到了与真值较为吻合的损伤度及其分布的反演结果.
Damages existed in concrete structures after long-term working. Using the theory of wave propagation, aiming at several typical damaged models, the PST (pulse-spectrum technique) combined with regularization is adopted to inverse the damage by transient wave field in numerical simulations. The inversed result considering the priori information is made obviously better. The inversed results which basically agree with the real distribution of the damaged degree are gained.
出处
《暨南大学学报（自然科学与医学版）》
CAS
CSCD
北大核心
2005年第1期20-22,共3页
Journal of Jinan University(Natural Science & Medicine Edition)
基金
湖南省自然科学基金(03JJY3008)资助项目
教育部科学技术研究重点项目(104137)资助
关键词
瞬态波场
混凝土
损伤
反演
transient wave field
concrete
damage
inversion
