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。
Open-cell nickel foams with different relative densities and pre-stretching degreesweresubjected to room temperature quasi-static compressive tests to explore their compressive properties. The compressive properties of the nickel foams includingyield strength,elasticmodulus, energy absorption density and energy absorption efficiency were calculated accurately. The results show that the compressive propertiesofyield strength,elasticmodulus and energy absorption density increase with the increaseof relative density of nickel foams. The compressive properties are sensitive to the pre-stretching degree, and the valuesof yield strength,elastic modulus and energy absorption density decreasewith the increaseof pre-stretching degree. However, the energy absorption efficiency at the densification strain state exhibits the independence of relative density and pre-stretching degree. Thevalue of energy absorption efficiency reaches its peak when the strain is at the end of the collapse plateau region.
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