Effect of constrained layers on vibrational characteristics of a composite sandwich system—A finite element based critical investigation
Source abstract
Abstract
The main aim of this paper is to investigate the effect of various constrained layers (viscoelastic layer (VEL), electro-rheological fluid (ERF), and magneto-rheological fluid (MRF)) over natural fre- quency and the damping loss factor with two different fiber orientations (0 and 90) for a Graphite/Epoxy (GR/E) composite sandwich shaft disc system. The finite element technique is used to investigate the natural frequency and loss factor for various combina- tions. Furthermore, the vibrational characteristics of the composite sandwich shaft disc system are compared with those of the base structure without constrained layers. The study shows that introducing various constrained layers reduces the magnitude of natural frequency by up to 80%. The results also show that GR/ E composite with 90 fiber orientation acquires the highest frequency reduction. Among the proposed layers, VEL has the highest damping loss factor.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Vibration Control and Rheological Fluids · Vibration and Dynamic Analysis · Structural Engineering and Vibration Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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