(合肥工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院，合肥 230009)
摘 要: 采用擠壓法在開孔泡沫鋁中充填硅橡膠，以硅橡膠填充開孔泡沫鋁為芯、鋁管和鋼管為面板制備層合管，研究了靜態(tài)壓縮條件下充填硅橡膠后泡沫鋁及其層合金屬管的變形行為和能量吸收性能。研究表明：在泡沫鋁中充填硅橡膠后，泡沫鋁的平臺區(qū)比原來增高、增長，其吸能性能也得到提高；由于泡沫鋁的充填，鋼管的變形方式發(fā)生改變，由不對稱屈曲轉(zhuǎn)變?yōu)檩S對稱屈曲；充填硅橡膠的泡沫鋁層合金屬管具有比原來更高的屈曲褶皺載荷，且屈曲褶皺的產(chǎn)生滯后，其吸能性能也得到提高，硅橡膠充填對層合鋼管的影響比對層合鋁管的影響更明顯。
關(guān)鍵字: 泡沫鋁；硅橡膠；層合管；力學(xué)性能；吸能性能
（School of Materials Science and Engineering,Hefei University of Technology, Hefei 230009, China）
Abstract: Silicone rubber was extruded into foamed aluminum, then cylinder sandwich was produced when using foamed aluminum filled with silicone rubber as core, aluminum tube and steel tube as panel. The compression deforming activity and energy absorption ability of aluminum foam with silicone rubber and rubber cylinder sandwich with silicone rubber were studied. The results indicated that the length and height of plateau region of aluminum foam with silicone rubber is increased and the energy absorption ability is improved. The deforming mode of the steel tube filled with foamed aluminum is changed from “diamond mode” to “circular mode”. For cylinder sandwich filled with silicone rubber, higher load is needed to create fold, and the appearance of fold is lagged, the energy absorption ability is improved. The influence of filled with silicone rubber is more obvious on steel cylinder sandwich than on aluminum cylinder sandwich.
Key words: foamed aluminum; silicone rubber; cylinder sandwich; mechanical properties; energy absorption ability
