开孔泡沫镍的压缩和吸能性能（英文）

发布时间：2018-12-19 12:09

【摘要】：研究在室温条件下不同相对密度、不同预拉伸程度的泡沫镍的准静态压缩性能。准确地测定包括屈服强度、弹性模量、能量吸收密度和能量吸收效率等压缩性能。结果表明,屈服强度、弹性模量和能量吸收密度的压缩性能随着泡沫镍的相对密度的增加而增加。压缩性能对泡沫镍基体的拉伸程度较为敏感,屈服强度、弹性模量和能量吸收密度随着预拉伸程度的增加而降低。然而,能量吸收效率对相对密度和预拉伸程度并不敏感。能量吸收效率在坍塌平台区末期达到最大值。
[Abstract]:The quasi-static compressive properties of nickel foams with different relative densities and different pretensile degrees at room temperature were studied. The compression properties including yield strength, elastic modulus, energy absorption density and energy absorption efficiency were measured accurately. The results show that the compressive properties of yield strength, elastic modulus and energy absorption density increase with the increase of the relative density of nickel foam. The compressive properties are sensitive to the tensile degree of nickel foam matrix. The yield strength, elastic modulus and energy absorption density decrease with the increase of pretension degree. However, energy absorption efficiency is not sensitive to relative density and pretension. The energy absorption efficiency reaches the maximum at the end of the collapse platform.
【作者单位】：烟台南山学院材料科学与工程系;中南大学材料科学与工程学院;
【基金】：Project supported by the 2015 Shandong Province Project of Outstanding Subject Talent Group
【分类号】：TG146.15;TB383.4

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