A review on structural enhancement and repair using piezoelectric materials and shape memory alloys

Abstract

In the past two decades, the active and controllable mechanical properties of piezoelectric materials and shape memory alloys have been widely employed in structural enhancement and repair with remarkable and interesting research findings. This article is designed to introduce and review these research findings. The active electromechanical property of piezoelectric materials is presented first. The research findings on both structural stability enhancement of engineering structures and repair of cracked/notched and delaminated structures under static and dynamic loadings via the piezoelectric materials follow. The active thermo-mechanical property of shape memory alloys and their applications in structural enhancement and repair are also briefly presented. Limitations of the current studies and recommended future endeavors are summarized as well. This review sums up different methodologies and designs in structural enhancement and repair using piezoelectric materials and shape memory alloys to promote new applications in the area.

Survey of Active Structural Control and Repair Using Piezoelectric Patches

“…This will be helpful to researchers, particularly in the precocious stages of investigation, to get a global idea about the research areas of piezoelectric material. There are different review papers in the various applications of the piezoelectric actuator in the literature, which are referenced here for the reader [10,[19][20][21][22][23][24]. The expectation is that this number will continue rising in the future.…”

Study of forced vibration response of a beam with a breathing crack using iteration method

“…As the most common damages, cracks and notches and their effects on the vibration of engineering structures have attracted much attention from researchers. Therefore, the simulation and analysis of the vibration signal of cracked structures has been a hot topic in the last two decades [11][12][13][14]. Different methods and numerical models have been developed to measure and simulate the vibration response of structures with the open crack, which is a basic and simple condition of the crack damage.…”

Nonlinear thermo-inertial instability of functionally graded shape memory alloy sandwich plates

“…In all of these studies, thermomechanical responses of SMA fibers have not been extensively investigated, except few attempts that have extracted the approximate curves from experimental results. A few studies have been developed by using the phenomenological model to express the constitutive characteristics of SMA fibers [35][36][37][38][39][40][41][42][43][44][45]. Roh et al [35] investigated the thermal snapping phenomenon in shell panels by the finite element method.…”

“…Results of this study reveal that the orientation of SMA fibers has a major effect on thermal buckling loads. In addition, a review on the structural enhancement by using SMA material was conducted by Wang and Wu [45].…”