文献类型：期刊文献

中文题名：结构胶合板蠕变测试方法的研究

英文题名：A New Test Method for Creep of Structural Plywood

作者：吕斌[1] 付跃进[1] 虞华强[2] 曾珍[1]

第一作者：吕斌

机构：[1]国家人造板质量监督检验中心;[2]中国林科院木材工业研究所

年份：2004

卷号：18

期号：4

起止页码：16-19

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD

基金："人造板及制品品质和加工质量标准制定与升级"项目内容之一

语种：中文

中文关键词：结构胶合板;蠕变;测试方法;应变测试法;应变仪

外文关键词：Poplar; Structural plywood; Creep; Stain gauge

分类号：TS653.3

摘要：　木质材料的蠕变特性是衡量其能否适用于工程用途的重要指标。本文介绍了一种较为新颖的蠕变测试方法———应变测试法,即将结构用胶合板试件置于恒温恒湿恒定载荷条件下,通过智能应变仪记录受载后的位移,以实现长期的蠕变测定。经2个月的检测,结果表明,杨木结构用胶合板的蠕变曲线基本符合木材的三阶段蠕变理论,其结果真实地反映了材料在恒定外力下的变形情况,为进一步探求结构用胶合板的应用研究打下基础。
A new test method, based on the examination of strain for creep behavior of structural plywood, was presented in this paper. A test experiment on structural Poplar plywood was (conducted) in a box under constant temperature, humidity and load conditions for about two months in order to determine the long-term creep behaviors of samples by using a strain gauge to measure the deflection and a computer to collect the data. The results showed that creep-time curves formed by the data took on a positive slope, which was in accordance with the 3-step creep theory of wood. This study established a base for further research on the creep property of plywood under long-term loads and its structural usage.