不同标准下胶合木胶层压缩剪切强度测试方法比较

被引:4
作者
李荣荣 [1 ]
曹平祥 [1 ]
郭晓磊 [1 ]
Mats Ekevad [2 ]
机构
[1] 南京林业大学材料科学与工程学院
[2] 瑞典吕勒奥大学
关键词
标准; 压缩剪切强度; 测试方法; 胶合木; 比较;
D O I
10.13360/j.issn.1000-8101.2015.04.021
中图分类号
TS653 [人造板生产];
学科分类号
0829 ; 082902 ;
摘要
分析比较了中国国标GB/T 17517—1998、欧洲标准EN392以及美国标准ASTM D905等3种相关标准下胶合木胶层压缩剪切强度测定结果的异同。结果表明:根据现有标准测得的胶层剪切应力并非真实剪切应力,而是剪切应力与胶层正应力的合力。当正应力表现为拉力时,试验所测剪切强度值低于真实值。为避免正应力的存在,提出了一种非标准的测试方法,以提高胶层压缩剪切强度测试精度。
引用
收藏
页码:86 / 89
页数:4
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