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<p>In this study, practical formulas for the critical buckling loads of simply supported square circular perforated steel plates with different hole ratios and slenderness ratios subjected to uniaxial and biaxial load conditions are developed. Database is composed with the help of the commercial software package ANSYS that uses the finite element method for calculations and the formula was developed by using gene expression programming. A total of 847 datasets were generated, and they used to establish and validate the formula. The effect of perforation size and slenderness ratio on the buckling strength of the perforated plates is investigated with this study. The buckling coefficients of uniaxially and biaxially loaded simply supported perforated square steel plates can be easily calculated quickly and accurately by using the empirical formulas developed in this study. One of the novelty of this research study is unique buckling coefficients can be calculated for each slenderness ratio. After the evaluation, it has seen that the results from the formulas are much more acceptable out of the results of the available literatures.</p>

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A new approach for estimating the critical buckling load coefficient of perforated steel square plates

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Mustafa Halûk Saraçoğlu

摘要

In this study, practical formulas for the critical buckling loads of simply supported square circular perforated steel plates with different hole ratios and slenderness ratios subjected to uniaxial and biaxial load conditions are developed. Database is composed with the help of the commercial software package ANSYS that uses the finite element method for calculations and the formula was developed by using gene expression programming. A total of 847 datasets were generated, and they used to establish and validate the formula. The effect of perforation size and slenderness ratio on the buckling strength of the perforated plates is investigated with this study. The buckling coefficients of uniaxially and biaxially loaded simply supported perforated square steel plates can be easily calculated quickly and accurately by using the empirical formulas developed in this study. One of the novelty of this research study is unique buckling coefficients can be calculated for each slenderness ratio. After the evaluation, it has seen that the results from the formulas are much more acceptable out of the results of the available literatures.