Abstract The effects of the cell size and distribution on the mechanical properties of polypropylene foam were simulated and analyzed by finite element modeling with ANSYS and supporting experiments. The results show that the reduced cell size and narrow size distribution have beneficial influences on both the tensile and impact strengths. Decreasing the cell size or narrowing the cell size distribution was more effective for increasing the impact strength than the tensile strength in the same case. The relationship between the mechanical properties and cell structure parameters has a good correlation with the theoretical model.

中文翻译：

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泡孔结构对聚丙烯泡沫力学性能影响的实验数值研究

摘要 采用ANSYS有限元建模和配套实验，模拟分析了泡孔尺寸和分布对聚丙烯泡沫力学性能的影响。结果表明，减小的泡孔尺寸和狭窄的尺寸分布对拉伸强度和冲击强度都有有益的影响。在相同情况下，减小泡孔尺寸或缩小泡孔尺寸分布对于提高冲击强度比提高拉伸强度更有效。力学性能与泡孔结构参数之间的关系与理论模型具有良好的相关性。