Abstract One of the criteria in the structural design is the buckling stability of the components. In cracked plates, the buckling phenomenon can be affected by the cracks. Therefore, it is important to investigate the effect of crack length and location on the buckling behavior. In this paper, the buckling stability of plates with different sizes ranging from short to long off-center cracks was studied by using the experimental and numerical methods. For this purpose, the clamped-free plate specimens of 1100 aluminum alloy with a crack in different length and locations were subjected to uniaxial compressive load. The experimental data were complemented with the numerical results obtained from extended finite element analyses, in order to further study the effect of various crack parameters in different types of boundary conditions. The agreement between the test and numerical results was quite satisfactory. Based on the results, the effect of crack eccentricity largely depends on the type of plate supports; and for the plates with two opposite free edges, the larger crack, the lower buckling stability.

中文翻译：

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偏心裂纹板压屈曲稳定性试验与数值研究

摘要 构件的屈曲稳定性是结构设计的标准之一。在有裂纹的板材中，屈曲现象会受到裂纹的影响。因此，研究裂纹长度和位置对屈曲行为的影响非常重要。本文采用实验和数值方法研究了不同尺寸的板的屈曲稳定性，从短到长的偏心裂纹。为此，对具有不同长度和位置的裂纹的 1100 铝合金无夹板试样进行单轴压缩载荷。实验数据与扩展有限元分析获得的数值结果相辅相成，以进一步研究不同类型边界条件下各种裂纹参数的影响。试验结果与数值结果的一致性相当令人满意。根据结果​​，裂纹偏心的影响在很大程度上取决于板支撑的类型；对于有两个相对自由边的板，裂纹越大，屈曲稳定性越低。