Dynamic Behavior of Sandwich Structures with Magnetorheological Elastomer: A Review

Abstract

Magnetorheological (MR) materials are classified as smart materials that can alter their rheological features once exposed to peripheral magnetic fields. MR materials have been a standard and one of the primary smart materials for the last few decades due to their outstanding vibration control performance in adaptive sandwich structures and systems. This paper reviews the vibration suppression investigations of flexible constructions using MR elastomers (MREs). In relations of field-dependent controllability, physical features such as stiffness and the damping of different geometrical structures integrated with the core layer of MREs are explored. The veracity of the knowledge is discussed in this article, whereby sandwich structures with different MR treatment configurations are analyzed for free and forced vibration, MRE sandwich structures are analyzed for stability under different working conditions, and the optimal positions of fully and partially treated MRE sandwich structures for improved vibration control are identified. MR materials′ field-dependent stiffness and damping characteristics are also discussed in this article. A few of the most noteworthy research articles over the last several years have been summarized.

Damping and Stiffness Analysis of Sandwich Beam with 3D-Printed Honeycomb Core Filled with Magnetorheological Elastomer (MRE): An Experimental Approach

“…Prior research has explored the use of MREs in various applications such as ATVAs [ 17 , 18 , 19 , 20 , 21 , 22 ], vibration isolators [ 23 , 24 , 25 ], adaptive base isolators [ 26 , 27 ], and stiffness-tunable suspensions and mounts [ 28 ]. Furthermore, scholarly research has been conducted on the subject of material empirical modeling, as evidenced by studies [ 29 , 30 , 31 , 32 , 33 ], Additionally, investigations have been carried out on material development and property testing [ 34 , 35 , 36 ], innovative device design and characterization [ 37 , 38 ], performance evaluation [ 39 , 40 , 41 , 42 ], and sandwich beams [ 43 , 44 ]. Several studies have also investigated the dynamic analysis of sandwich constructions made with magnetorheological gel (MRG) MREs [ 45 , 46 , 47 , 48 ].…”

Design of a Magnetorheological Elastomeric Actuator: Analytical and Numerical Model With Experimental Validation

“…In order to overcome the incapacity of MREs to generate work, de Souza proposed a sandwich system which couples MREs with CFRP skins [26], thus modifying the dynamic response of stiffness. A review of MRE sandwich applications can be found in [27], while a possible application is covered in a patent [28]. One of the most interesting reviews in the MRE actuator field is found in [29], where several examples of variable stiffness devices are reported.…”

Low-Velocity Impact Behavior of Foam Core Sandwich Panels with Inter-Ply and Intra-Ply Carbon/Kevlar/Epoxy Hybrid Face Sheets

“…In hybrid fiber sandwich structures, two or more types of fibers are used in the face sheets to improve the monolithic face sheet properties [25][26][27][28]. The impact and the failure mechanism for the sandwich structure is a very complex mechanism and continues to remain an active topic under discussion by many researchers [29][30][31][32][33][34][35]. Enhancement of the impact properties of the foam sandwich panels through stitching, Z-pinning, tufting and also by implementing changes in the density of the foam core has been investigated by researchers [36][37][38][39][40].…”