文献类型：期刊文献

英文题名：The Long-Term Mechanical Properties of BS Perpendicular to the Grain

作者：Luo, Xiangya[1,2] Luo, Xiangqian[3] Ren, Haiqing[1] Zhang, Shuangbao[2] Zhong, Yong[1]

第一作者：Luo, Xiangya

通信作者：Zhong, Y[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100091, Peoples R China;[3]China Shanxi Sijian Grp Co Ltd, Taiyuan 030006, Peoples R China

年份：2023

卷号：15

期号：1

外文期刊名：POLYMERS

收录：;EI(收录号：20230213372706);Scopus(收录号：2-s2.0-85145901305);WOS:【SCI-EXPANDED(收录号:WOS:000908799000001)】；

语种：英文

外文关键词：bamboo scrimber; perpendicular to grain; duration of load effect; creep; DOL factor

摘要：As a modern bamboo composite with good mechanical properties, bamboo scrimber (BS) has achieved prominence in the sustainable architecture field. When used as a structural material, it is inevitably under continual tension perpendicular to the grain, therefore its mechanical response under long-term loading is significant for structural design. In this study, tensile tests were conducted on BS under short-term and long-term loads perpendicular to the grain. The duration of load (DOL) effect on BS perpendicular to grain and its creep effect were analyzed. Compared with BS parallel to the grain, the DOL effect on BS perpendicular to the grain was less severe, and the capacity for creep resistance was weaker. The threshold stress ratio and relative creep strain of BS perpendicular to the grain were 0.40 and 0.87, respectively. It was found that the DOL models and the viscoelastic model accurately predicted the DOL factor and creep strain. This study provides a scientific reference for the safe lifetime service of BS in practical engineering.