摘要
通过X-cor夹层结构与相同材料同尺寸的未增强件和去除泡沫的Z-pin夹层结构进行剪切性能试验对比,考察Z-pin对泡沫夹层结构的增强效果.通过剪切刚度和剪切强度试验值和理论值的对比分析研究,得到了修正后的夹层结构剪切刚度和剪切强度理论计算公式.研究结果表明:夹层结构的剪切性能与剪切刚度折减系数M、表征加载过程中Z-pin开始从面板拔出的时间系数T有关,而系数M,T决定于工艺水平.
A series of experiments were carried out for comparison under shear loading,including X-cor sandwich,foam sandwich and Z-pin sandwich,so as to investigate Z-pin enhancement effect on foam sandwich.By studying on the difference between test and formual data the modifed formula of shear modulus and strength was achieved.The result shows that shear properties are related to modulus stiffness discount M and time facotr T,indicating the beginning of Z-pin pull from face skin：M and T were affirmed by craft level.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2013年第3期541-549,共9页
Journal of Aerospace Power
基金
科研项目(JPPT-1146)
