（3）The influence of the size parameters of U-shaped corrugated sandwich plates and U-shaped folding sandwich plate on the response of sandwich plate  under load has been analyzed，and the structure of the excellent U-shaped corrugated sandwich plate and U-shaped folding sandwich panel have been put forward.

（4）On the basis of MATLAB software，a calculation interface of corrugated sandwich plate and U-shaped folding U-shaped sandwich plate has been developed through the GUI program. The interface can not only rapidly calculate the stiffness and response of the two kinds of sandwich plates, but also judge the rationality of the input parameters of the sandwich plate，which is an efficient tool for theoretical calculation of sandwich plate，and it also provides guidance for the calculation of other special structures in the form of sandwich.

Keywords: U-type corrugated sandwich plate; U-shaped folding sandwich panel; equivalent parameters; Response calculation; program development

目录

第一章 绪论 1

1.1研究背景与意义 1

1.2国内外研究现状 2

1.2.1夹层结构的理论研究 2

1.2.2波纹式夹层板研究现状 3

1.2.3折叠式夹层板研究现状 3

1.3本文的研究内容 5

第二章 U型波纹式夹层板等效参数理论分析 6

2.1概述 6

2.2夹层板的等效理论 6

2.3等效参数理论计算 8

2.3.1弯曲刚度和弯曲泊松比的推导 8

2.3.2扭转刚度的推导 12

2.3.3横向剪切刚度（x方向）的推导 19

2.3.4横向剪切刚度（y方向）的推导 21

2.4本章小结 27

第三章 U型折叠式夹层板等效参数理论分析 28

3.1概述 28

3.2等效参数理论计算 28

3.2.1弯曲刚度和弯曲泊松比的推导 28

3.2.2扭转刚度的推导 31

3.2.3横向剪切刚度（x方向）的推导 33

3.2.4横向剪切刚度（y方向）的推导 34

3.3本章小结 37

第四章 夹层板的弯曲响应分析 38

4.1概述 38

4.2夹层板的弯曲响应理论计算 38

4.2.1控制方程 38

4.2.2四边简支约束条件 39

4.3实例分析 42

4.3.1夹层板几何参数 42

4.3.2理论计算 42

4.3.3仿真计算 43

4.4本章小结 44

第五章 夹层板的参数分析 46

5.1概述