文献类型：期刊文献

英文题名：APPLICATION OF DIGITAL SPECKLE CORRELATION METHOD FOR EXAMINING DEFORMATION BEHAVIOUR OF MOSO BAMBOO (PHYLLOSTACHYS PUBESCENS)

作者：Li, X. Z.[1] Ren, H. Q.[1] Zhou, Q. Y.[2] Zhong, Y.[1]

第一作者：Li, X. Z.

通信作者：Li, XZ[1]|[a0005c555459b75af6941]李霞镇;

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Univ New Brunswick, Fredericton, NB E3C 2G6, Canada

年份：2013

卷号：25

期号：3

起止页码：317-324

外文期刊名：JOURNAL OF TROPICAL FOREST SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000324006600006)】；

基金：This project was financially supported by the subproject of the Forestry Public Industry Research Program of China (NO.. 200904034, No.201004005). Special thanks go to SP Ma from the Beijing Institute of Technology, Beijing, for technical support in carrying out the experiment of DSCM.

语种：英文

外文关键词：DSCM; modulus of elasticity (MOE); extensometer; dynamic damage; tension; compression

摘要：We studied the deformation behaviour of bamboo under loading. Modulus of elasticity (MOE) in tension parallel to grain with respect to age, damage behaviours during tension and compression loading of moso bamboo (Phyllostachys pubescens) were recorded via digital speckle correlation method (DSCM). DSCM could be successfully used in determining MOE because the differences in results compared with those obtained using conventional extensometer were within 5%. MOE in tension parallel to grain obtained by DSCM maintained an increasing trend with increasing age. During the tension and compression processes, samples had large strain concentrations and gradients before damage. Since DSCM could be used in advance for reflecting damage behaviours and predicting failure site, it was possible to show the whole complex damage process.