X-cor夹层结构的剪切模量实验与分析

通过力学分析得到考虑Z-Pin拉压受力情况的X-cor夹层结构剪切模量的解析式,并通过剪切刚度实验值和理论值的对比分析,得到考虑刚度折减系数M的修正理论公式。结果表明：加载过程中,Z-Pin从面板拔出是剪切刚度折减的原因。通过缩小Z-Pin长度的差异及提高Z-Pin从面板拉脱力的大小增大剪切刚度折减系数M,进而提高夹层结构的剪切刚度。...

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Bibliographic Details
Published in材料工程 no. 5; pp. 59 - 65
Main Author 单杭英 肖军 李宁 尚伟 张向阳
Format Journal Article
LanguageChinese
Published 南京航空航天大学无人机研究院,南京210016%南京航空航天大学材料科学与技术学院,南京,210016 2014
南京航空航天大学材料科学与技术学院,南京210016
Subjects
X-cor夹层结构
修正理论公式
刚度折减
剪切模量
改进工艺方法
stiffness discount
刚度折减
modified theoretical formula
shear modulus
X-cor夹层结构
bettering craft
修正理论公式
剪切模量
改进工艺方法
X-cor sandwich
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ISSN1001-4381
1001-4381
DOI10.11868/j.issn.1001-4381.2014.05.011

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Summary:通过力学分析得到考虑Z-Pin拉压受力情况的X-cor夹层结构剪切模量的解析式,并通过剪切刚度实验值和理论值的对比分析,得到考虑刚度折减系数M的修正理论公式。结果表明：加载过程中,Z-Pin从面板拔出是剪切刚度折减的原因。通过缩小Z-Pin长度的差异及提高Z-Pin从面板拉脱力的大小增大剪切刚度折减系数M,进而提高夹层结构的剪切刚度。
Bibliography:11-1800/TB
X-cor sandwich ; shear modulus ; stiffness discount; modified theoretical formula ; bettering craft
An analytical formula was derived for the shear modulus of X-cor sandwich structure based on mechanical analysis of tensile and compressive stress in Z-Pins. By comparing results from test and calculation, the modified theoretical formula of shear modulus was achieved concerning stiffness discount factor M. The results show that the stiffness discount roots in Z-Pin being pulled from face skin under load. Higher stiffness discount factor M can be obtained by bettering the craft, including decreasing Z-Pin length difference or elevating the pull-out force of Z-Pin, and then sandwich shear modulus can be further improved.
SHAN Hang-ying ,XIAO Jun ,LINing ,SHANG Wei ,ZHANG Xiang-yang （1 College of Materials Science and Technology, Nanjing University of Aeronautics ＆ Astronautics,Nanjing 210016,China; 2 Institute of Unmanned Aerial Vehicle,Nanjing University of Aeronautics ＆ Astronautics,Nanjing 210016,Chin
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2014.05.011