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基于简化Zig-zag模型的钢聚氨酯夹层板屈曲分析
Biaxial buckling analysis of SPS sandwich plate based on a simplified Zig-zag model
田阿利*, 张海燕, 魏震, 赵元帅, 傅梓轩
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作者单位:江苏科技大学 船舶与海洋工程学院, 江苏 镇江 212003
中文关键字:钢聚氨酯夹层板;高阶理论;面内压缩载荷;屈曲
英文关键字:SPS sandwich plate; high-order theory; in-plane compression load; buckling
中文摘要:本文提出一种简化的高阶Zig-zag理论,即面板采用一阶剪切变形理论,芯材采用Reddy高阶剪切变形理论,建立钢聚氨酯夹层板在面内压缩载荷作用下的屈曲分析模型。考虑夹层板作为船舶舱口盖的受力特性,利用Matlab和有限元软件Ansys分别求出在面内压缩载荷作用下的钢聚氨酯夹层板的屈曲临界载荷,理论解与仿真值吻合度较高并分析几何参数对结构稳定性的影响。研究结果表明,在考虑结构重量的前提下,增加芯材即聚氨酯的厚度能较好的提高结构的稳性。
英文摘要:In this paper, a simplified high-order Zig-zag theory was proposed and an analytical model for the buckling of steel polyurethane steel (SPS) sandwich plate subjected to in-plane compressive loads was established. The first-order shear deformation theory was adopted for the face sheets and the high-order shear deformation theory from Reddy was adopted for the core, respectively. The critical buckling load of SPS sandwich plate under in-plane compression load was calculated by using Matlab and finite element software Ansys, considering the mechanical characteristic of the sandwich plate as the ship hatch cover. The theoretical solution was in good agreement with the simulation value, and the influence of geometric parameters on the structural stability was analyzed. The results show that the stability of the structure can be improved by increasing the thickness of the core material (polyurethane) on the premise of considering the weight of the structure.
2019,41(11): 20-26 收稿日期:2019-03-14
DOI:10.3404/j.issn.1672-7649.2019.11.005
分类号:TU398
基金项目:高技术船舶科研项目资助(项目编号K24367)
*通讯作者:田阿利(1991-),女,博士,副教授,研究方向为船舶新型结构强度与设计
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