Contents


Preface

Structural health monitoring has emerged as a viable tool for damage detection and preventive maintenance procedures for engineered structures. This book covers themes such as sustainable design, smart structural health monitoring, conservation of historic cultural heritage, advanced damage assessment techniques and reliability of monitored engineering systems. These themes are considered to augment conventional structural health monitoring with the objective of achieving

The book opens with a description of a new sensor design proposed for the aeronautics industry. This sensor is expected to enable maintenance operators to determine the load level seen by an engine links after hard landings. Infrared thermography is presented as a viable non-destructive tool in monitoring wooden cultural heritage structures, which is characterized as a friendly, noninvasive method that suits the nature of cultural heritage structures. The same technology is also proposed for non-destructive monitoring of concrete structures where a novel aperiodic thermal wave imaging technique is employed for testing and evaluating rebar corrosion in concrete structures. Ultrasonic guided waves technology is also proposed for metallic structures to support their integrity and maintenance management. Applications in pipelines and storage tanks, which are critical assets in the oil and gas industry, are considered. Frequency-based damage detection is considered for evaluating damaged concrete sleepers and its practical use is demonstrated through laboratory and field tests. Finally, a new generation of strain sensors in the form of wire/thread that can be incorporated into composite materials to detect damage are presented. The proposed microscale strain sensor consists of flexible, untwisted nylon yarn coated with a thin layer of silver using an electro-less plating process. All such applications are meant to introduce new trends and/or new applications of new and/or

The editor would like to thank all contributors whose work is represented in this book and whose influences are expected to help in shaping the future of structural

> **Maguid H.M. Hassan** Dean of Engineering,

The British University in Egypt (BUE)

a sustainable system design.

existing structural health monitoring techniques.

health monitoring.
