层合多孔圆柱壳轴向压缩实验与仿真研究  

EXPERIMENTAL STUDY AND SIMULATION ON AXIAL COMPRESSION OF LAMINATED CELLULAR CYLINDRICAL SHELL

作　　者：贺璞 邓庆田[1] 李新波[1] 宋学力[1] HE Pu;DENG QingTian;LI XinBo;SONG XueLi(School of Science,Chang'an University,Xi'an 710064,China)

机构地区：[1]长安大学理学院,西安710064

出　　处：《机械强度》2023年第1期43-49,共7页Journal of Mechanical Strength

基　　金：中央高校基本科研业务费专项资金(310812163504)资助。

摘　　要：使用实验测试和有限元仿真计算的方法,研究了层合多孔圆柱壳在轴向压缩荷载下的承载力性能和变形破坏模式。考虑正六边形和内凹六边形两种多孔构型,讨论了高度、直径、厚度参数对层合多孔圆柱壳轴向承载力的影响,得到了内凹多孔圆柱壳的轴压性能优于正六边形圆柱壳的结论。分析了层合多孔圆柱壳轴向压缩下的屈曲变形模式。同时,使用测试得到的材料参数仿真模拟实验结果,对照分析了仿真与实验变形特征与压缩性能。Experimental tests and finite element simulation methods were used in this article. The bearing loads and deformation failure modes of laminated cellular cylindrical shell under axial compression loads were studied. Two kinds of cellular units, regular hexagon and re-entrant, were studied. The influence of different heights, diameters and thicknesses on the axial bearing loads were discussed with laminated cellular cylindrical shell. It is concluded that the axial compression performance of re-entrant cylindrical shell is better than regular hexagonal cylindrical shell. The buckling deformation modes of laminated cellular cylindrical shell under axial compression were analyzed. In addition, the material parameters obtained by the test were used to simulate the experimental results, compared the deformation modes and compression performance of simulation and experimental results.

关 键 词：层合圆柱壳 多孔结构 轴向荷载 有限元仿真 

分 类 号：O344[理学—固体力学]