泡沫金属填充薄壁圆管结构越来越广泛地应用于各种工程结构。压入是这种复合结构在侧向承载时出现的一种重要的变形模式,但尚缺乏有效的理论分析模型。该文在Wierzbicki等提出的空管侧向压入的理论模型的基础上,建立了泡沫金属填充薄壁圆管侧向压入的理论分析模型,给出了压头载荷的解析表达式。通过实验比较表明,理论预测值合理地吻合于实验结果。另外,对加载过程中变形区域的演化、结构各组成部分的能量耗散特点进行了分析。 Foam metal filled thin-walled circular tube structure is more and more widely used in various engineering structures. Pressing is an important deformation mode of this composite structure when it is carried laterally. However, there is no effective theoretical analysis model. Based on the theoretical model proposed by Wierzbicki et al. For the lateral press-in of empty pipe, a theoretical analysis model of the lateral press-in of foamed metal-filled thin-walled pipe was established, and the analytical expression of indenter load was given. The experimental results show that the theoretical predictions are in good agreement with the experimental results. In addition, the evolution of the deformation area during loading and the energy dissipation characteristics of the components of the structure are analyzed.