Fractal theory based damage assessing method of acoustic emission test

摘要：

Acoustic emission (AE) test monitoring is an effective non-destructive technique.In the paper,a new damage assessing method which is damage acuteness index for AE signal of PZT patches based on fractal theory was proposed.The damage index was deduced by the character of signal analysed by fractal theory.It is deduced that both the curve length and the fractal dimension (FD) of signal are related with damage development.The AE test of Pseudo-static experiment of a concrete-filled GFRP tubes (CFFT) was performed for validation.The results show that the damage acuteness index can assess damage development process effectively.So the damage acuteness index is a promising method to apply in AE test monitoring.

关键词： fractal theory AE Pseudo-static ezperiment damage assessing

作者: Yong Huang Hui Li Xin Yan Jin-ping Ou

作者单位: School of Civil Engineering,Harbin Institute of Technology,Harbin,150090,China School of Civil Engineering,Harbin Institute of Technology,Harbin,150090,China School of Civil and H

会议类型: 国际会议

会议名称: The 8th International Conference on Damage Assessment of Structures(DAMAS 2009)(第八届结构损伤评价国际学术会议)

会议地点: 北京

会议语种:英文

页码: 335-342

在线出版日期: 2009-08-03（万方平台首次上网日期，不代表论文的发表时间）