In the present work, polymer-based syntactic foams were studied under cyclic compression in order to investigate their compressibility, recoverability, energy dissipation and damage tolerance. These syntactic foams were manufactured by adding hollow polymer microspheres of various sizes and wall thicknesses into a polyurethane matrix. The associated loading and unloading curves during cyclic testing were recorded, revealing the viscoelastic nature of the materials. SEM images of the samples were obtained in order to study potential damage mechanisms during compression. It was observed that these syntactic foams exhibit high elastic recovery and energy dissipation over a wide range of compressional strains and the addition of polymer microspheres mitigates the damage under compressional loading.

在目前的工作中，基于聚合物的复合泡沫在循环压缩下进行了研究，以研究其可压缩性，可回收性，能量耗散和破坏耐受性。这些复合泡沫塑料是通过将各种尺寸和壁厚的中空聚合物微球添加到聚氨酯基质中来制造的。记录了循环测试过程中的相关加载和卸载曲线，揭示了材料的粘弹性。为了研究压缩过程中潜在的损伤机理，获得了样品的SEM图像。观察到这些复合泡沫在很大的压缩应变范围内显示出高的弹性恢复和能量耗散，并且聚合物微球的添加减轻了压缩载荷下的破坏。