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Mechanical Properties of Metallic Closed Cellular Materials Containing Organic Materials for Passive Damping

机译：含有用于被动阻尼有机材料的金属闭合细胞材料的力学性能

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摘要

A metallic closed cellular material containing organic materials for the smart materials has been developed. Powder particles of polystyrene coated with a nickel-phosphorus alloy layer using electroless plating were pressed into green pellets and sintered at high temperatures. A metallic closed cellular material containing organic materials was then fabricated. The density of this metallic closed cellular material was measured. The density of this material is smaller than that of other structural metals. On the fabricated metallic closed cellular materials, compressive properties, Young's modulus and ultrasonic attenuation coefficient were measured. The compressive tests showed that this material has the different stress-strain curves among the specimens that have different thickness of the cell walls. Each stress-strain curve has a long plateau region, the sintering temperatures of the specimens affect the compressive strength of each specimen, and energy absorbing capacity is very high. Young's modulus of this material depends on the thickness of the cell walls and the sintering temperature. The attenuation coefficient of this material observed by ultrasonic measurement is very large. These results indicate that this metallic closed cellular material can be utilized as energy absorbing material and passive damping material.
机译：已经开发出含有用于智能材料的有机材料的金属闭合细胞材料。用无电镀涂有镍 - 磷合金层的聚苯乙烯粉末颗粒被压入绿色粒料中并在高温下烧结。然后制造含有有机物质的金属闭合细胞材料。测量该金属闭合细胞材料的密度。该材料的密度小于其他结构金属的密度。在制造的金属闭合细胞材料上，测量压缩性能，杨氏模量和超声衰减系数。压缩试验表明，该材料具有不同厚度的细胞壁的样本中的不同应力 - 应变曲线。每个应力 - 应变曲线具有长平台区域，标本的烧结温度影响每个样本的抗压强度，并且能量吸收能力非常高。杨氏模量取决于细胞壁和烧结温度的厚度。通过超声测量观察到这种材料的衰减系数非常大。这些结果表明，该金属闭孔材料可用作能量吸收材料和无源阻尼材料。

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