期刊
ENGINEERING FRACTURE MECHANICS
卷 74, 期 1-2, 页码 273-289出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2006.01.036
关键词
acoustic emission monitoring; structural assessment; damage mechanics; crack growth; life prediction
类别
The acoustic emission technique is applied to identify defects and damage in reinforced concrete structures and masonry buildings. By means of this technique, a particular methodology has been put forward for crack propagation monitoring and damage assessment, in structural elements under service conditions. This technique permits to estimate the amount of energy released during fracture propagation and to obtain information on the criticality of the ongoing process. In addition, based on fracture mechanics concepts, a fractal or multiscale methodology is proposed to predict the damage evolution and the time to structural collapse. (c) 2006 Elsevier Ltd. All rights reserved.
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