通过基于高孔率开口泡沫金属材料结构特点的简化结构模型和受力状态分析,建立了此类材料在循环载荷作用下的负载结构-疲劳模型,分析得出了对应疲劳性能的衡量指标.在上述模型的基础上,运用由该模型得出的高孔率开口泡沫金属疲劳性能的衡量指标,以电沉积法所得泡沫镍为例,对此类材料的疲劳性能进行了相关的实验研究.通过压-压循环和弯曲循环两种载荷作用的实验,验证了理论分析所得疲劳性能衡量指标的可行性.结果表明:泡沫镍在压-压循环载荷作用下的类应力疲劳性能随孔率增大而降低,而在弯曲循环载荷作用下的类应变疲劳性能则随孔率增大和孔径减小而提高.
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