Introduction

With the advancement in materials technology, SHM is becoming a desirable feature to monitor structural integrity with the aim to improve the reliability and to reduce overall life cost of the structures. Following are the some important areas who have taken lead in the implementation of SHM:

• Aircraft structures
• bridges
• civil buildings
• marine structures
• wind turbine blades
• underground pipelines and automobile applications

. A few such applications will be discussed in this lecture.