This paper presents the results of our research regarding the use of a meshless method, namely element-free Galerkin method, in solving an impact problem between a rigid body and a foam plate. Next, the paper gives two answers to two usual questions appearing when modeling foam materials. These questions refer to the choice of a material model and to the extension of the stress–strain curve of the foam material. Solutions start from some experimental data of a foam material and continue by numerical simulations using Ls-Dyna software. The results are very interesting and especially useful in numerical modeling of the foam material. The results are presented in a comparative way, graphically and in tabular form.

本文介绍了我们在解决刚体与泡沫板之间的碰撞问题方面使用无网格方法（即无元素Galerkin方法）的研究结果。接下来，本文对泡沫材料建模时出现的两个常见问题给出了两个答案。这些问题涉及材料模型的选择以及泡沫材料的应力-应变曲线的扩展。解决方案从泡沫材料的一些实验数据开始，然后通过使用Ls-Dyna软件进行的数值模拟继续进行。结果非常有趣，并且在泡沫材料的数值模拟中特别有用。结果以图形和表格形式以比较方式呈现。