TY - JOUR
T1 - Structural Fatigue Life Monitoring with Piezoelectric-Based Sensors
T2 - Fundamentals, Current Advances, and Future Directions
AU - Ghaderiaram, Aliakbar
AU - Schlangen, Erik
AU - Fotouhi, Mohammad
PY - 2025
Y1 - 2025
N2 - Structural fatigue can lead to catastrophic failures in various engineering applications and must be properly monitored and effectively managed. This paper provides a state-of-the-art review of recent developments in structural fatigue monitoring using piezoelectric-based sensors. Compared to alternative sensing technologies, piezoelectric sensors offer distinct advantages, including compact size, lightweight design, low cost, flexible formats, and high sensitivity to dynamic loads. The paper reviews the working principles and recent advancements in passive piezoelectric-based sensors, such as acoustic emission wave and strain measurements, and active piezoelectric-based sensors, including ultrasonic wave and dynamic characteristic measurements. These measurements, captured under in-service dynamic strain, can be correlated to the remaining structural fatigue life. Case studies are presented, highlighting applications of fatigue life monitoring in metals, polymeric composites, and reinforced concrete structures. The paper concludes by identifying challenges and opportunities for advancing piezoelectric-based sensors for fatigue life monitoring in engineering structures.
AB - Structural fatigue can lead to catastrophic failures in various engineering applications and must be properly monitored and effectively managed. This paper provides a state-of-the-art review of recent developments in structural fatigue monitoring using piezoelectric-based sensors. Compared to alternative sensing technologies, piezoelectric sensors offer distinct advantages, including compact size, lightweight design, low cost, flexible formats, and high sensitivity to dynamic loads. The paper reviews the working principles and recent advancements in passive piezoelectric-based sensors, such as acoustic emission wave and strain measurements, and active piezoelectric-based sensors, including ultrasonic wave and dynamic characteristic measurements. These measurements, captured under in-service dynamic strain, can be correlated to the remaining structural fatigue life. Case studies are presented, highlighting applications of fatigue life monitoring in metals, polymeric composites, and reinforced concrete structures. The paper concludes by identifying challenges and opportunities for advancing piezoelectric-based sensors for fatigue life monitoring in engineering structures.
KW - fatigue life
KW - monitoring
KW - piezoelectric sensor
KW - active sensors
KW - passive sensors
KW - dynamic loads
UR - http://www.scopus.com/inward/record.url?scp=85215784856&partnerID=8YFLogxK
U2 - 10.3390/ s25020334
DO - 10.3390/ s25020334
M3 - Article
SN - 1424-8220
VL - 25
JO - Sensors
JF - Sensors
IS - 2
M1 - 334
ER -