Abstract
With advances in technology in recent years, the use of orthotropic materials to exclude the mechanical deficiencies of homogeneous plates has increased. Sinusoidal corrugated plates are known as orthotropic plates, as a result of changes in their mechanical properties in two orthogonal directions. Since use of corrugated plates, in particular steel shear walls instead of flat steel plates, has increased, the present study investigated local buckling of sinusoidal corrugated plates under uniform uniaxial loading on the transverse edges of the plate (vertical loading on the sinusoidal wave of corrugated plates), using the Galerkin method. This method is very powerful with regard to solving differential equations, and directly uses these equations in the process of problem-solving. Finally, the results obtained for the critical buckling load of sinusoidal corrugated metal plates and the results relating to the metal homogeneous flat plates were compared using the same supporting conditions and loading.
Highlights
With the worldwide development of the construction industry, the quality and speed of construction is highly regarded and continues to evolve
No previous study has examined buckling of sinusoidal corrugated plates under uniform loading perpendicular to sinusoidal waves, so we investigated local buckling of sinusoidal corrugated plates under uniaxial uniform loading on the transverse edges of the plates
It should be noted that the critical buckling load fcr was initially in the computer program, and the local buckling critical coefficient of plate kcr was achieved by using Equation 24.; k cr
Summary
With the worldwide development of the construction industry, the quality and speed of construction is highly regarded and continues to evolve. Leo and Edlund [2] examined buckling of trapezoidal corrugated plates by using the finite-strip method under thin-walled structures, while Qiang et al [3] discussed local buckling of the compression flange of H-beams with corrugated webs. Liew et al [4] investigated buckling of metal sinusoidal and trapezoidal corrugated rectangular plates using a mesh-free Galerkin method based on first-order shear deformation theory under uniform loading, perpendicular to the edge of the plate in the sinusoidal waves of metal corrugated plates. We compared the local buckling coefficient of corrugated metal plates with flat metal plates under different supporting conditions, and studied the impact of ratio of length to width of plate, as well as the effect of ratio of sinusoidal half-wave plate height on buckling coefficient, on the basis of the classical theory for thin plates
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