| 基于层合板基本性能数据的复合材料层合结构的强度校核方法 |
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| 引用本文： | 唐羽章,谢仁华.基于层合板基本性能数据的复合材料层合结构的强度校核方法[J].固体火箭技术,1992(3). |
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| 作者姓名： | 唐羽章 谢仁华 |
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| 作者单位： | 国防科技大学，国防科技大学 湖南长沙 410073，湖南长沙 410073 |
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| 摘 要： | 通过对0/45]_8,0/9]_8两种铺层的玻璃/环氧管状试样做双向载荷强度实验,发现基于层合板基本强度数据的Tsai—Wu准则失效包络线比基于单向板基本性能数据的失效包络线与实验结果的吻合要好得多。特别是按两个单轴强度比值做双轴强度实验确定相互作用系数,其强度曲线比选取相互作用系数F_(xy)~(?)=-1/2的方法与实验结果更为吻合。
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| 关 键 词： | 层压材料 拉力试验 压缩试验 强度计算 失效判据 双轴应力 |
A CHECKING METHOD OF LAMINATED STRUCTURE BASED ON THE ESSENTIAL PROPERTY DATA OF THE PLATES |
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| Tang Yuzhang,Xie Renhua National University of Defence Technology,Changsha,Hunan.A CHECKING METHOD OF LAMINATED STRUCTURE BASED ON THE ESSENTIAL PROPERTY DATA OF THE PLATES[J].Journal of Solid Rocket Technology,1992(3). |
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| Authors: | Tang Yuzhang Xie Renhua National University of Defence Technology Changsha Hunan |
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| Institution: | Tang Yuzhang,Xie Renhua National University of Defence Technology,Changsha,Hunan,410073 |
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| Abstract: | The bidrectional loading strength tests of glass/epoxy tubular specimens
with 0/45]_(?) and 0/90]_s laminated structures are carried out. It is found that the failure
envelope of Tsai-Wu criteria based on laminates, essential strength data tallies with the
test results better than the one based on the unidirectional plates, essential property data.
Particalarly, when bidirectional strength test is used to determine interaction coefficient
according to the ratio of two unidirectional strengthes, the strength curve tallies with the
test results much better than that when an interaction coefficient is chosen as F_(xy)~(?)=-1/2. |
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| Keywords: | Laminated material Tensile test Compresion test Strength computation Failure criteria Biaxial stress |
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