期刊名称：International Journal of Distributed Sensor Networks
印刷版ISSN：1550-1329
电子版ISSN：1550-1477
出版年度：2022
卷号：18
期号：9
页码：1-3
DOI：10.1177/1550147718802019
语种：English
出版社：Hindawi Publishing Corporation
摘要：Structural health monitoring (SHM) is now one of the key and crucial issues for structures and machinery due to the increase in accident ratio amount. At present, more and more attention has been attracted toward the reliability and safety evaluations for the inspected structures.1–3 On reviewing the history of SHM, which is proposed in 1970s, we can see that the development of SHM always accompanies the development of sensor technologies and measurement technologies. Taking the measurement of strain and stress, for example, these two terms, which are important for damage detection in SHM, are usually registered by strain gauge or estimated by the derivative of displacement.4 However, the development of sensor allows the directed measure of the derivative modal shape,5 and the laser technology6,7 also allows the measure of the full wave field or vibration field. These are all fully involved and considered in the decision and the assessment of damage for SHM.
