Three-point bending of sandwich panel with grid core and different types of materials including C/SiC and E-glass epoxy in end plate of full cell

this paper, the performance of sandwich structures with grid core and two different types of materials, including C/SiC and E-glass epoxy subjected to three-point bending, is investigated, numerically. Furthermore, effects of three different kind s of fiber angle, ۰-۴۵-۹۰, ۰-۹۰-۴۵, and ۴۵-۹۰-۰ are investigated. Numerical results show that sandwich structures made with C/SiC material with ۰-۴۵-۹۰fiber angle has a better bending behavior.In the last deiced, application of fuel cell as a portable power, backup, transportation and stationary power, has attracted the attention of many researchers. The fuel cell made of the anode, cathode and different plate. Underestimating the importance of the end plate in the fuel cell is not logical, its play crucial role in increasing the mechanical behavior of fuel cell and increase its capacity. Utilizing the composite plate like sandwich plate can increases the load-bearing capacity of this plate. Yu et.al [۱] presents the method to design and manufacture the sandwich endplates whose face and core are made of carbon fiber reinforced composite and honeycomb/foam, respectively. The aim of this paper is to examine how the fiber angle and material properties can affect the bending behaver and load-bearing capacity of the end plate in the fuel cell.In this study, sandwich specimens consist of three face sheets with three different fiber angle (۰-۴۵-۹۰, ۰-۹۰-۴۵, and ۴۵-۹۰-۰) and core configurations were fabricated. Fig. ۱ illustrated the geometrical characteristics of sandwich plat.In order to predict the mechanical behavior and failure modes of studied sandwich structures, a ۳D FEM was developed using commercial finite element software ABAQUS/Explicit, release ۱۶.۱۴In this paper, firstly the effects of different fiber angle for E-glass epoxy composite was investigated(Fig.۲). according to this fig composite plat with fiber angle ۰-۴۵-۹۰ has a better bending behaver. Then the Energy-Strain curves of C/SiC composite with different fiber angle under static three-point bending test was reported (Fig.۲ b). As Then the Energy-Strain curves of C/SiC composite with different fiber angle under static three-point bending test was reported (Fig.۲ b). As it shown similar to the E-glass epoxy composite, plat with fiber angle ۰-۴۵-۹۰ has a more load-bearing capacity Fig. ۱ Schematic of studied sandwich specimens: (a) ۳D view and (b) cross-section of differentfiber angle (c) geometry of core configurations Fig. ۲ a)The Energy-Strain curves of E-glass epoxy composite b) The Energy-Strain curves ofC/SiC composite with different fiber angle under static three-point bending test. and c) Fatiguefailure for optimal caseIn summary, in this study, the effects of, material properties and different fiber angle of Sandwich Plateswith Grid Core under static three-point bending test numerically investigated. According to the result theC/SiC composite plate with fiber angle ۰-۴۵-۹۰ has a best bending behaver and load-bearing capacityand it is suitable for Fuel Cell End Plates.