【摘要】 对厚度 6mm、干涉量 3.1%情况下的硬铝合金LY12CZ板销钉干涉配合预应力及其在 35 %σ0 .2 、45 %σ0 .2 、5 5 %σ0 .2 的拉伸、压缩载荷情况下的变化规律进行了比较实验研究。结果表明 ,在 3.1%干涉水平下 ,干涉配合较适宜在中等及其以下的拉伸载荷环境中工作 ,此时干涉预应力场的稳定性较好。在压缩载荷下 ,干涉配合也是有效的 ,但为得到稳定的干涉预应力场 ,同样干涉水平下 ,压缩载荷要比拉伸载荷低更多还原

【Abstract】 The paper deals with the experiment on force fit of hard aluminum alloy LY12CZ sheet under the 6 mm thickness with 3.1% force fit level , and under tension and compression load levels of 35% σ 0.2 , 45% σ 0.2 and 55% σ 0.2 . The study shows that the force fit is suitable for middle to low levels of tensile load under 3.1% force fit level. Under compression ,the force fit is also effective, but in order to achieve stable prestressing, the level of compression load needs to be lower in contrast with tensile load of same force fit level.更多还原