铝合金板件的受压屈曲分析  

Compressive buckling of aluminum alloy plates

作　　者：王元清[1] 石永久[1] 袁焕鑫[1] 程明 

机构地区：[1]土木工程安全与耐久教育部重点实验室,清华大学土木工程系,北京100084 [2]中粮地产(集团)股份有限公司,辽宁沈阳110041

出　　处：《武汉大学学报（工学版）》2011年第1期74-78,共5页Engineering Journal of Wuhan University

基　　金：高等学校博士学科点专项科研基金(编号:20090002110046)

摘　　要：针对铝合金受压及受弯构件中可能出现的局部屈曲,采用有限元方法研究了铝合金受压板件的稳定性.对国外现行规范中的设计方法进行了介绍,并对比了国外文献中的试验结果与有限元计算结果,以验证有限元方法在研究铝板受压屈曲问题上的适用性.基于有限元方法分析了影响铝板受压屈曲的各种因素,最后根据有限元的计算结果给出了铝板受压屈曲的临界宽厚比限值.分析结果表明:控制宽厚比可以有效地防止铝合金受压板件发生局部屈曲,而且所提出的板件宽厚比限值适用于铝合金受压板件的设计.As for the local buckling of aluminum alloy members under compression and bending,finite element analysis（FEA） of the stability of compressive plates is performed.The design rules for stability of aluminum compressive plates in the up-to-date codes abroad are introduced.In order to confirm the veracity of finite element models,the analytical results are compared with experimental data obtained by other scholars.The parametric analysis of local buckling of aluminum compressive plates is accomplished by FEA.Thereupon the critical values of width-to-thickness ratio to prevent local buckling were provided based on the results of numerical simulations.It is shown that the restriction of the width-to-thickness ratio can efficiently avoid local buckling of aluminum plates under compression;and the proposed limit values will be suitable in the design of aluminum compressive plates.

关 键 词：铝合金 受压屈曲 宽厚比 有限元分析 

分 类 号：TU395[建筑科学—结构工程]