栅格三明治板的小挠度弯曲变形  

Small deflecrion bending analysis of sandwich panels with truss cores

作　　者：王展光[1] 龚昕[1] 王珍吾[1] 肖鹤亮[1] 单建[2] 

机构地区：[1]井冈山大学工学院,江西吉安343009 [2]东南大学土木工程学院,江苏南京210096

出　　处：《四川建筑科学研究》2011年第2期35-38,共4页Sichuan Building Science

摘　　要：通过横向刚度等效的原则,将金字塔形栅格转变成连续化模型,并通过其刚度常数的推导,使其转变成均匀夹层板,应用Reissner夹层板理论,得到其弹性小挠度下的基本方程,并就简支板为例,得到其解析解,通过与有限元分析进行比较,两者结果吻合良好。A sandwich panel with pyramidal truss cores was introduced and transformed into continuum model by means of the equivalent transverse shear stiffness.Its elastic stiffness constants were derived,and then the sandwich panel was idealized as a sandwich panel with uniform cores,and the basic equation was obtained with Reissner sandwich panel theory.The closed-form solution of a simple supported sandwich panel was calculated,and agree well with 3D finite element analysis.

关 键 词：金字塔形栅格 三明治板 弹性小挠度 连续化模型 有限元法 

分 类 号：TU32[建筑科学—结构工程]