對具有相同孔徑的開孔泡沫銅進行單軸準靜態壓縮和壓-壓疲勞試驗，分析開孔泡沫銅的壓縮特性和疲勞行為，并討論了疲勞失效方式及破壞機理。結果表明：開孔泡沫銅的壓縮應力-應變曲線由彈性變形階段、平臺應力階段、密實階段3個階段組成；在壓-壓疲勞過程中開孔泡沫銅主要經歷了疲勞損傷積累區、應變激增區和持續破壞區3個階段，應力水平越低開孔泡沫銅的壽命越長；在剪切力作用下，開孔泡沫銅中間部位形成一條與水平方向存在一定角度的擠壓帶，隨著累積應變的增加，擠壓帶中孔洞結構持續破壞而形成一條幾乎水平的壓潰帶；開孔泡沫銅的疲勞失效機理為孔棱表皮脫落、頸縮、斷裂以及棱柱結的開裂。

Uniaxial quasi-static compression and compression-compression fatigue tests were performed on open-cell foam copper with the same pore size. The compression characteristics and fatigue behavior of open-cell foam copper were analyzed, and the fatigue failure mode and failure mechanism were discussed. The results show that the compressive stress-strain curve of open-cell foam copper consisted of elastic deformation stage, platform stress stage, and compaction stage. During compression-compression fatigue process, the open-cell foam copper mainly experienced fatigue damage accumulation zone, strain surge zone, and continuous failure zone. The lower the stress level, the longer the life of open-cell foam copper. Under the action of shearing force, the middle part of the open-cell foam copper formed an extruded zone with a certain angle to the horizontal direction. As the accumulated strain increasing, the pore structure in the extruded zone continued to be destroyed and formed an almost horizontal crush zone. The fatigue failure mechanism of open-cell foam copper was the peeling, necking, fracture of pore edges, and cracking of pore junction.