泡沫铝填充薄壁金属管塑性变形缓冲器吸能特性的试验研究
罗昌杰1;刘荣强1;邓宗全1;王 闯2;李萌1
Experimental Studies of Energy Absorber Filled with Aluminum Foam on the Thin-walled Metal Tube’s Plastic Deformation
摘要:通过试验方法研究了泡沫铝填充薄壁金属管塑性变形缓冲器在准静态作用下的吸能特性。首先,进行了泡沫铝,薄壁金属管塑性变形缓冲器及泡沫铝填充薄壁金属管塑性变形缓冲器的轴向压缩试验。然后,根据试验结果,对泡沫铝填充薄壁金属管塑性变形缓冲器的吸能特性进行了分析,并与独立的泡沫铝及薄壁金属管塑性变形缓冲器的吸能特性进行了比较。结果表明,泡沫铝填充薄壁金属管塑性变形缓冲器的吸能特性有了很大的提高。在吸收的能量一定时,泡沫铝填充结构能够减少吸能结构所需要的体积与质量。
Abstract: Energy absorption characteristic of energy absorber filled with aluminum foam on the thin-wall metal tube’s plastic deformation under quasi-static is studied by test method. First, the axial compression tests of aluminum foam, shock absorber with thin-wall metal tube’s plastic deformation and shock absorber with aluminum foam filled on thin-wall metal tube’s plastic deformation are carried out. Based upon the test result, the energy absorption characteristic of energy absorber with aluminum foam filled on thin-wall metal tube’s plastic deformation are analyzed, and compared with that of aluminum foam and energy absorber with thin-wall metal tube’s plastic deformation. It shows that, aluminum foam filling can greatly increase the energy adsorption abilities of the thin-wall metal sections. Compared with the non-filled structures, aluminum foam filled structures need less mass and volume to absorb the specified energy.
泡沫铝 / 薄壁金属管 / 缓冲器 / 吸能特性 {{custom_keyword}} /
aluminum foam / thin-wall metal tube / energy absorber / energy absorption characteristic {{custom_keyword}} /
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