Wireless Acoustic Sensor for Structural Health Monitoring

By: Bhagat, Chandan Kumar

Non-destructive testing (NDT) is an interdisciplinary technology that plays a vital role in

ensuring the quality and structural integrity of components and systems. The NDT is

defined as the identification of the physical condition of materials/structures without

affecting their intended functions . NDT technologies are essential in various industries,

including petrochemical, nuclear, aerospace, construction, automotive, and defence .

Several NDT methods are available based on a particular physical principle . There

exist different NDT methods which are used for inspection of materials/structures such as

visual testing (VT), magnetic particle testing (MPT), radiography testing (RT), liquid

penetrant testing (LPT), ultrasonic testing (UT), vibration testing (VT), eddy current testing(ECT),

infrared thermography testing (IRT) and acoustic emission testing (AET). These

methods are further subdivided into various techniques. These methods and techniques lend

themselves well to specific applications such as structural integrity assessment, online

monitoring, etc. through detection and characterization of damage and defects, e.g., cracks,

porosity, inclusions [10-11]. Judicious selection of methods and techniques is an essential

part according to the area of applications.

S tr u c tur al h ea lth mo ni to ri n g (SHM) is adopted to assess the healthiness/condition of structures through their monitoring

and any damage sensing before failure. SHM is vital for monitoring the health of any

structure to ensure the safety of working personnel and has economic implications [15].

SHM is a new concept in the field of engineering. It is intended for continuous monitoring

of structures in real-time. It also evaluates the structural performance under various external

stimulus to identify damage or deterioration, in order to ensure the healthiness of the

structures/components. Towards the advancement in SHM, many non-destructive testing

methods have been developed over the past three decades.

The structural health monitoring on a continuous real-time basis is essential for

manufacturing, end-users and maintenance teams. SHM system allows optimal use of the

structure, avoidance of catastrophic failure and a minimized downtime. The SHM system,

once correctly implemented, shows improvement in a product and drastically changes

maintenance service. The drastic changes in maintenance philosophy are described in

several publications, particularly for civil infrastructure, military air vehicle, army

systems and civil aircraft

• Format: Paperback
• Language: English
• ISBN: 9864314297
• ISBN13: 9789864314294
• Release Date: January 1
• Publisher: Aqeel Ahmed
• Length: 196 Pages
• Weight: 0.59 lbs.
• Dimensions: 0.4" x 6.0" x 9.0"