文献类型：期刊文献

英文题名：Application of digital speckle correlation method for exmining 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.

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China; [2] Forestry and Environmental Management, University of 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：EI(收录号：20133216582339)

语种：英文

外文关键词：Compaction - Correlation methods - Deformation - Dilatometers - Elastic moduli - Speckle

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. ? Forest Research Institute Malaysia.