Parametric study on dynamic responses of stiffened sandwich composite bridge deck panel

Abstract

Recently, the use of sandwich composites in different fields of engineering such as aerospace, marine, automobile, pipelines, bridge structure, industrial work, has attracted significant attention. Sensitivity analysis of structures made of sandwich composites is necessary to design them properly and maintain their longevity. The present study analyzes stiffened sandwich composite bridge deck panels and focuses on its sensitivity analysis. The lack of control in the manufacturing of the sandwich composites may lead to non-uniform material properties, and thus variation in its behavior. The variation in the dynamic responses obtained through the free vibration analysis of the bridge deck panel models of stiffened composites due to is studied. The free vibration analysis is implemented using a finite element method. The analysis is carried out with the stiffeners located in different positions and alignments. The glass fiber-reinforced plastic (GFRP) and polyvinyl semi-rigid foam are considered in the face and core layer for modeling the deck panels, respectively. The sensitivity of the bridge deck panels is also observed with the presence of holes of different diameters in the core layer of the sandwich composite plate without stiffeners and with a transverse stiffener. It has been noticed that dynamic response, i.e. the eigenvalue, is sensitive concerning the in-plane parameters of the face layers compared to other parameters. Moreover, an increase in the size of the hole in the core layer results in a decrease in the dynamic response of the stiffened sandwich composite bridge deck panel. The knowledge of the sensitivity of the sandwich composites will be helpful to update the model and also to design the bridge deck for better performance and improved longevity.

Vibration behavior of a carbon fiber‐reinforced polymer composite sandwich panel: Rhombus core versus elliptical core

“…Zhai et al [ 17 ] analyzed the buckling and free vibration of composite sandwich curved panels in thermal environment based on the first‐order discrete layer model using Navier solution. Sahu et al [ 18 ] developed a parametric study on the dynamic and vibration responses of stiffened sandwich composite bridge deck panel using finite element analysis. Based on their research, it was revealed that by increasing the size of the hole in the core layer, the dynamic response of the stiffened sandwich composite bridge deck panel decreases.…”

Modal properties investigation of a carbon/glass fiber-reinforced polymer composite sandwich structure with lozenge-like core: An experimental and finite element simulation

“…Zhai et al (2021) analyzed the buckling and free vibration of composite sandwich curved panels in a thermal environment using the first-order discrete layer model and Navier solution. Sahu et al (2022) developed a parametric study on the dynamic and vibration responses of stiffened sandwich composite bridge deck panels using finite element analysis. Based on their research, it was revealed that by increasing the size of the hole in the core layer, the dynamic response of the stiffened sandwich composite bridge deck panel decreases.…”

Influence Analysis of Lubricant Recesses on the Working Capacity of the Bridge Span Spherical Bearing

“…Due to the rapid growth of vehicle fleets, the load on transport and logistics systems is increasing [25,27], which leads to increased requirements for the performance characteristics of bridge structure elements [27,28]. Many authors considered the serviceability of different elements of transport systems, intending to increase the maintenance-free operation of critical structural elements [24,[29][30][31][32][33][34][35]. In [6,36], the basic directions of research were considered within the framework of the rationalization of the geometrical configurations of critical elements of bridge structures (the bridge bearings), which absorb vertical and horizontal loads from the bridge span, as well as the external influences.…”