Effect of stacking sequence of mechanical and tribological properties woven bambooglass fabric reinforced polymer hybrid composites has been investigated experimentally. Laminate samples were fabricated by hand layup technique in a mold and cured under light pressure at room temperature for 48 h. All the laminates were made with a total of four plies, by varying the number and position of glass layers so as to obtain five different stacking sequences. One group of all bamboo laminate was also fabricated for comparison purpose. Specimen preparation and testing were carried out as per ASTM standards. The results indicated that the properties of bamboo composite can be significantly improved by incorporation of glass fiber in polymer composite. The layer sequence has greater effect on mechanical and tribological properties of hybrid composite.
The flexural and tensile properties of micrometer and nanometer fly ash particle-filled jute/ glass hybrid epoxy composites were studied and compared with the conventional fibers (glass) composites. The effects of nanofiller (2, 4 and 6 wt%) and microfiller (5, 10 and 15 wt%) are also examined. The effects of micro/nanofiller addition in the pure jute fiber and hybrid (glass/jute) composites were investigated with scanning electron microscope. The experimental result shows that due to micro-and nanofiller addition, the strength of all composites is increased. The tensile strength of 4 wt% fly ash nano-filler GJJG (glass-jutejute-glass) hybrid composites shows better result among other composites and it gives 5% better strength of the glass fiber composites. Whereas 4 wt% fly ash nano-filler GJGJ hybrid composites shows better flexural strength as compared to glass fiber composites.
The present work aims to carry out modal analysis of a functionally graded material (FGM) plate to determine its natural frequencies and mode shapes by using Finite Element Method (FEM). Functionally graded material can be differentiated by varying the composition and structure progressively over its volume, consequentially in corresponding changes in the material constituents. The mechanical properties of a FGM plate change continuously from one surface to another through its thickness direction according to power law. For modal analysis of FGM plate program has been coded in MATLAB software. Some examples are solved, and the results are compared with those available in the literature. The mode shape and natural frequencies of rectangular FGM plate are found at different boundary conditions. It has been observed the effect of volume fraction index, which indicates the percentage of ceramic and metal composition in the FGM. In addition, the effects of power law index on the FGM plate natural frequency and mode shapes with different boundary conditions are studied.
This research work aims to analyze the static analysis of an isotropic rectangular plate with various boundary conditions and various types of load applications. In this paper, finite element analysis has been carried out for an isotropic rectangular plate by considering the master element as a four noded quadrilateral element. Numerical analysis (finite element analysis, FEA) has been carried out by developing programming in mathematical software MATLAB and the results obtained from MATLAB are giving good agreement with the results obtained by classical method-exact solutions. Later, for the same structure, analysis has been carried out using finite element analysis software ANSYS. This job is helpful for obtaining the results not only at node points but also the entire surface of the rectangular plate. Finally, comparison has been done between the results obtained from FEA numerical analysis, and ANSYS results with classical method-exact solutions. Numerical results showed that, the results obtained by finite element analysis and ANSYS simulation results are in close agreement with the results obtained from exact solutions from classical method. During this analysis, the optimal thickness of the plate has been obtained when the plate is subjected to different loading and boundary conditions.
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