Experimental and finite-element analysis of woven glass-cloth/epoxy laminate tensile specimen at room and low temperatures
Experimental and finite-element analysis of woven glass-cloth/epoxy laminate tensile specimen at room and low temperatures
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DOI：
10.1080/15376490490257666
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发表时间：
2004-01-01
影响因子：
2.8
通讯作者：
Narita, F
中科院分区：
文献类型：
--
作者：
Kumagai, S;Shindo, Y;Narita, F
为评价聚变能超导磁体用SL-ES30玻璃布/环氧层压板的拉伸性能，对其拉伸性能进行了实验和分析。拉伸试验按照JIS K 7054在室温和液氮温度(77K)下进行。总体试件几何形状为矩形狗骨形状，具有恒定的测量长度，但每个试件大小具有不同的试件宽度。实验结果为分析建模提供了数据。该模型利用了两个损伤变量，这两个变量是由实验数据确定的。采用考虑损伤的有限元方法对其进行了拉伸分析。考察了温度、试件几何形状和夹持方法对拉伸性能的影响。
To evaluate the tensile properties of SL-ES30 glass-cloth/epoxy laminates for superconducting magnets in fusion energy systems, tensile tests were examined both experimentally and analytically. The tensile tests were conducted in accordance with JIS K 7054 at room temperature and liquid nitrogen temperature (77 K). The general specimen geometry was a rectangular dog-bone shape with constant gage length but with each specimen size having a different specimen width. The experimental finding provides the data for analytical modeling. The model utilizes two damage variables that are determined from experimental data. A finite-element method coupled with damage was adopted for the extensional analysis. The effects of temperature, specimen geometry, and gripping method on the tensile properties are examined.