Study of Modal Behaviour of Sandwich Structure with Various Core Materials - An Analytical Approach

Abstract

The present study comprises of different types of cored sandwich structures with different core geometries. A combination of materials of skins and cores were considered to investigate the free vibrational or modal behaviour on the core materials and geometries for the structure for illuminating the vibrational aspects for failures. Subsequently, the deformation for sandwich structures with various core geometries and materials was also studied. The objective of the article is to provide an essence of vibrational performance study of aluminium alloy for both skins, and the results were compared among core materials unlike materially configured sandwich structures of honeycomb core. Simulations of mode shapes were obtained using the free vibrational constraints. From this study, it was obtained that, two types of core geometries strictly imply that there is obvious effect of shape of core in sandwich beam vibrational characteristics of structure, as in the study. Lastly, the results obtained by using honeycomb core geometry of certain material was compared to regular rectangular geometrized core and found to have better results in terms of natural frequencies and maximum deformation of the later. Thus, findings may serve as a case for application of similar structures in engineering applications.

Managing the surface piezoelectricity effect of the smart ZnO sandwich nanoplates using metal foam core layer and GPRL reinforced rim layers

“…3. Analyzing the impact of temperature variation ΔT on dimensionless frequencies λ (1,1) based on four foam void ratios and three foam types. Fig.…”

“…Sandwich structures are essential in various engineering fields due to their unique properties and versatility. These structures are composed of layers bonded together to create a composite material with enhanced strength, stability, and other desirable characteristics [1]. Composite sandwich structures find wide applications in aerospace, marine, automotive, civil engineering, and transportation industries due to their high stiffness, good insulation, corrosion resistance, and energy absorption capabilities [2].…”

Analysis for Enhancing the Performance Characteristics of Honeycomb-Filled Tubes at Constant Mass

“…Therefore, many efforts have been made to develop new designs, such as composite tubes that combine thin-walled metal tubes with other parts, which show many favorable properties [1]. The investigated components include lattice [2][3][4][5], foam [6][7][8][9], honeycomb [10][11][12][13], fold [14], ortho-grid [15,16], circumferential [17], and longitudinal corrugated [18,19] cores. It was demonstrated that the dual-bearing capacity of tube and foam improve the overall stability and mechanical performance of the combined structure [20].…”

Stability analysis of glass fibre polyamide composite transmission tower

“…22–24 The dynamic analysis of transmission tower structure could be done through the identification of vibration modes of natural frequency of the tower structures by modal testing and FE simulation. 25–28…”

“…[22][23][24] The dynamic analysis of transmission tower structure could be done through the identification of vibration modes of natural frequency of the tower structures by modal testing and FE simulation. [25][26][27][28] Bhowmik et al 17,18 studied about the dynamic characteristics of Carbon Polymer Nylon 66 (CPN 66) composite made transmission tower using commercial software. The authors summarized that the first vibration period was 35% that was found more than the period determined by an experienced formula.…”