基于高阶变形理论的硬夹芯夹层板横向载荷条件下的弯曲

郝加琼; 李明成; 邓宗白

doi:10.3879/j.issn.1000-0887.2014.08.005

基于高阶变形理论的硬夹芯夹层板横向载荷条件下的弯曲

doi: 10.3879/j.issn.1000-0887.2014.08.005

南京航空航天大学航空宇航学院,南京 210016

基金项目: 江苏省优势学科建设平台资助项目

详细信息

作者简介:
郝加琼（1986—），男，安徽安庆人，中级工程师，硕士(通讯作者. E-mail:HJQ_2014@163.com).

中图分类号: V214.8;O342
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- 被引次数: 0
出版历程
- 收稿日期: 2013-12-03
- 修回日期: 2014-05-04
- 刊出日期: 2014-08-15

Bending of Sandwich Plates With Hard Cores Under Transverse Loading Based on the HighOrder Deformation Theory

College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R.China

摘要

摘要: 考虑面板和夹芯的面内刚度及抗弯刚度，基于高阶变形理论考虑各层的横向抗剪刚度，并根据横向剪应变分布情况给出应力函数，基于广义虚位移原理推导了夹层板的基本方程.详细研究了四边简支受横向载荷条件下的夹层板的弯曲，对比计算了面板与芯层厚度变化对计算结果的影响，并与一阶变形理论计算结果进行对比.研究了厚度方向的剪应变分布情况以及中面法线变形后的形态，给出了横向剪应变引起的附加转角在面内的分布情况.
- 高阶变形理论 /
- 夹层板 /
- 硬夹芯 /
- 横向剪切 /
- 广义虚位移原理 /
- 基本方程
Abstract: Based on the high-order deformation theory, the in-plane stiffness and bending stiffness of both surface layer and core layer of the sandwich plate were considered to derive the transverse shearing stiffnesses of all the layers. The transverse stress function was given according to the transverse strain distribution, and the differential equations for the sandwich plate were deduced with the generalized principle of virtual displacement. The bending deformation of simply supported rectangular sandwich plates with different core-to-surface thickness ratios were detailedly studied under transverse loading, and the calculation results were compared with those from the 1st-order deformation theory to give a bigger relative deformation difference at a smaller thickness ratio. The distribution of transverse strain along the thickness direction makes a half sine curve, and the center-plane normal line distortion culminates at the surface height.
- high-order deformation theory /
- sandwich plate /
- hard core /
- transverse shear /
- generalized principle of virtual displacement /
- basic equation

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参考文献(26)

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