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Flexural Behavior of Asymmetric Structural Foams

机译:不对称结构泡沫的弯曲行为

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Asymmetric structural foams were prepared by compression molding to study the flexural properties of these sandwich structures with different layer thickness. It was found that the flexural properties of asymmetric structural foams are function of load direction. Since the bending behavior is a combination of tension and compression, the stress distribution across the foam core plays a key role in describing their bending properties. The experimental results show that the compression modulus of integral foams is lower than its tensile modulus. Based on this information, a model is proposed to predict the flexural properties of asymmetric structural foams based on stress distribution.
机译:通过压缩成型制备不对称结构泡沫,以研究这些具有不同层厚度的夹心结构的弯曲性能。发现不对称结构泡沫的弯曲特性是载荷方向的函数。由于弯曲行为是拉伸和压缩的结合,因此泡沫芯上的应力分布在描述其弯曲特性方面起着关键作用。实验结果表明,整体泡沫的压缩模量低于其拉伸模量。基于此信息,提出了一种基于应力分布预测不对称结构泡沫的弯曲特性的模型。

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