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本文应用有限条法,考虑了冷弯薄壁棱柱弯角处的材料加工效应引起屈服应力提高,应力-应变曲线圆滑过渡这一特性,对薄壁结构弹塑性局部屈曲进行了分析与评价。
In this paper, the finite strip method was used to consider the material processing effect at the corners of cold-formed thin-walled prisms, resulting in the increase of yield stress and the smooth transition of stress-strain curve. The elastic-plastic local buckling of thin-walled structures was analyzed and evaluated.