Abstract
Abstract Recently, basalt fiber reinforced polymer (BFRP) is acknowledged as an outstanding material for the strengthening of existing concrete structure, especially it was being used in marine vehicles, aerospace, automotive and nuclear engineering. Most of the structures were subjected to severe dynamic loading during their service life that may induce vibration of the structures. However, free vibration studied on the basalt laminates composite plates with elliptical cut-out and correlation of natural frequency with buckling load has been very limited. Therefore, effects of the elliptical hole on the natural frequency of basalt/epoxy composite plates was performed in this study. Effects of stacking sequence (θ), elliptical hole inclination (ϕ), hole geometric ratio (a/b) and position of the elliptical hole were considered. The numerical modeling of free vibration analysis was based on the mechanical properties of BFRP obtained from the experiment. The natural frequencies as well as mode shapes of basalt laminates composite plates were numerically determined using the commercial program software (ABAQUS). Then, the determination of correlation of natural frequencies with buckling load was carried out. Results showed that elliptical hole inclination and fiber orientation angle induced the inverse proportion between natural frequency and buckling load.
Highlights
Recently, basalt fiber reinforced polymer (BFRP) is acknowledged as an outstanding material for the strengthening of existing concrete structure, especially it was being used in marine vehicles, aerospace, automotive and nuclear engineering
The numerical modeling of free vibration analysis was based on the mechanical properties of BFRP obtained from the experiment
Appropriate elements were designated from the ABAQUS software library to suitably simulate the characteristic of the component of the free vibration analysis of laminate composite plate
Summary
Abstract: Recently, basalt fiber reinforced polymer (BFRP) is acknowledged as an outstanding material for the strengthening of existing concrete structure, especially it was being used in marine vehicles, aerospace, automotive and nuclear engineering. Free vibration studied on the basalt laminates composite plates with elliptical cut-out and correlation of natural frequency with buckling load has been very limited. Sivakumar et al [12] used first order shear deformation theory to investigate the free vibration response of composite plates with elliptical hole cutout. [13, 14] implemented a finite element formulation based on Hamilton’s principle and higher order shear deformation theory (HSDT) to study the free vibration responses of thick square composite plates. A numerous of the literature have been studied on either numerical or experimental approach for the free vibration analysis of laminate composite plates with various cut-out, there were very limited publication on the effect of elliptical hole on the correlation of natural frequency with buckling load of basalt laminates composite plates. The correlation of natural frequency with buckling load was implemented
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