文章摘要
贺高锋,齐明思,张伟,薛洋洋,强志鹏.泡沫铝-聚氨酯复合材料力学及吸能性能分析[J].包装工程,2018,39(21):48-53.
HE Gao-feng,QI Ming-si,ZHANG Wei,XUE Yang-yang,QIANG Zhi-peng.Mechanical and Energy Absorption Properties of Foamed Aluminum-Polyurethane Composites.Packaging Engineering,2018,39(21):48-53.
泡沫铝-聚氨酯复合材料力学及吸能性能分析
Mechanical and Energy Absorption Properties of Foamed Aluminum-Polyurethane Composites
投稿时间:2018-06-29  修订日期:2018-11-10
DOI:10.19554/j.cnki.1001-3563.2018.21.010
中文关键词: 泡沫铝  准静态压缩  力学性能  吸能效率  理想吸能效率
英文关键词: foam aluminum  quasi-static compression  mechanical properties  energy absorption efficiency  ideal energy absorption efficiency
基金项目:山西省自然科学基金(201601D102035)
作者单位
贺高锋 中北大学太原 030051 
齐明思 中北大学太原 030051 
张伟 中北大学太原 030051 
薛洋洋 中北大学太原 030051 
强志鹏 中北大学太原 030051 
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中文摘要:
      目的 研究泡沫铝相对密度、孔径对泡沫铝-聚氨酯复合材料准静态压缩力学性能、吸能性能、吸能效率和理想吸能效率的影响。方法 将制备的泡沫铝-聚氨酯复合材料试样在万能材料试验机上进行准静态压缩试验,得出对应的应力-应变曲线,由应力-应变曲线分析材料的吸能性能、吸能效率、理想吸能效率。结果 当泡沫铝孔径一定,泡沫铝相对密度由0.350提升至0.384时,泡沫铝-聚氨酯复合材料屈服强度提升了4.38 MPa,而最大吸能效率由0.29下降至0.27,准静态压缩性能有所提高。当泡沫铝相对密度一定,泡沫铝孔径由5 mm增加至9 mm时,泡沫铝-聚氨酯复合材料屈服强度提升了6.16 MPa,而最大吸能效率由0.25升高到0.27,准静态压缩性能有所提高。结论 当进行准静态压缩时,泡沫铝-聚氨酯复合材料压缩性能随相对密度的增大而增大,随孔径的增大而增大;泡沫铝-聚氨酯复合材料的吸能性能随相对密度的增大而增大,随孔径的增大而增大;泡沫铝-聚氨酯复合材料的最大吸能效率随相对密度的增大而减小,随孔径的增大变化微小。
英文摘要:
      The work aims to study effects of relative density and pore size of foamed aluminum on quasi-static compression mechanical properties, the energy absorption properties, the energy absorption efficiency and the ideal energy absorption efficiency of the aluminum foam-polyurethane composites. The prepared aluminum foamed- polyurethane composite were subjected to quasi-static compression experiments on a universal material testing machine and the corresponding curves of the stress-stain were obtained. The energy absorption properties, the energy absorption efficiency and the ideal energy absorption efficiency of materials were analyzed by the corresponding curves of the stress-strain. When the pore size of aluminum foam was constant, the relative density of aluminum foam was increased from 0.350 to 0.384; and the yield strength of aluminum foam-polyurethane composites was increased by 4.38 MPa. The quasi-static compression performance was improved, but the maximum energy absorption efficiency was decreased from 0.29 to 0.27. When the relative density of aluminum foam was constant, and the pore size of aluminum foam was increased from 5 mm to 9 mm; the yield strength of aluminum foam-polyurethane composites was increased by 6.16 MPa; the maximum energy absorption efficiency was increased from 0.25 to 0.27 and the quasi-static com-pression performance was improved. When performing quasi-static compression, the compression properties of the aluminum-polyurethane foam composites is increased with the increasing of the relative density and the pore size; the energy absorption properties of the aluminum-polyurethane foam composites is increased with the increasing of the relative density and the pore size. The maximum energy absorption efficiency is decreased with the increasing of the relative density, and changed slightly with the increasing of the pore size.
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