基于数字散斑相关方法的竹材变形特性

doi:10.11707/j.1001-7488.20120918

Scientia Silvae Sinicae ›› 2012, Vol. 48 ›› Issue (9): 115-119.doi: 10.11707/j.1001-7488.20120918

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Deformation Behavior of Bamboo based on DSCM

Li Xiazhen¹, Ren Haiqing¹, Ma Shaopeng²

1. Research Institute of Wood Industry, CAF Beijing 100091;2. School of Aerospace Engineering, Beijing Institute of Technology Beijing 100081

Received:2011-10-30 Revised:2012-04-25 Online:2012-09-25 Published:2012-09-25

Abstract

Abstract:

Digital speckle correlation method(DSCM)was used in studying modulus of elasticity(MOE)in tension parallel to grain of bamboo and displacements which contribute to the strain fields of samples during the tension and compressive process. It was showed the MOE in tension parallel to grain kept a decreasing trend from the outer to inner layers of stalks, and it increased with age increasing. Besides, bamboo damage was complex and the whole damage process could be reflected by DSCM intuitively. In addition,DSCM could show the damage state of samples in advance and anticipate failure sites.

Key words: digital speckle correlation method(DSCM), bamboo, deformation, modulus of elasticity in tension parallel to grain, damage

CLC Number:

S781.2

Li Xiazhen;Ren Haiqing;Ma Shaopeng. Deformation Behavior of Bamboo based on DSCM[J]. Scientia Silvae Sinicae, 2012, 48(9): 115-119.

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Deformation Behavior of Bamboo based on DSCM

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