ATCHUTA RAMACHARYULU D - Academia.edu (original) (raw)
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Papers by ATCHUTA RAMACHARYULU D
Journal of emerging technologies and innovative research, 2018
Rectangular steel perforated sheets used in various engineering structures are subjected to uniax... more Rectangular steel perforated sheets used in various engineering structures are subjected to uniaxial compressive loading, to find their critical buckling stress. Perforations of various shapes namely circle, ellipse, rectangle and diamond are considered in this study, aspect ratio of all these shapes are varied to study their effect on the critical buckling stress. The effect of the volume fraction (φ) of these perforations on the buckling behaviour of the considered plates is studied. Constructal theory[1] based analysis is carried out in this buckling analysis by way of nondimensionalising all the geometric parameters, constraints and choosing the objective function as maximization of critical buckling load. The results of this study are expressed in terms of the variation of nondimensionalised critical buckling stress (σcr,ND) as a function of volume fraction (φ), aspect ratio of perforation shape (H,L). Further these results are analysed to find the optimal values of volume frac...
Journal of emerging technologies and innovative research, 2018
Rectangular steel perforated sheets used in various engineering structures are subjected to uniax... more Rectangular steel perforated sheets used in various engineering structures are subjected to uniaxial compressive loading, to find their critical buckling stress. Perforations of various shapes namely circle, ellipse, rectangle and diamond are considered in this study, aspect ratio of all these shapes are varied to study their effect on the critical buckling stress. The effect of the volume fraction (φ) of these perforations on the buckling behaviour of the considered plates is studied. Constructal theory[1] based analysis is carried out in this buckling analysis by way of nondimensionalising all the geometric parameters, constraints and choosing the objective function as maximization of critical buckling load. The results of this study are expressed in terms of the variation of nondimensionalised critical buckling stress (σcr,ND) as a function of volume fraction (φ), aspect ratio of perforation shape (H,L). Further these results are analysed to find the optimal values of volume frac...