[1]李海涛,苏靖文,魏冬冬,等.基于大尺度试件重组竹各向轴压力学性能研究[J].郑州大学学报(工学版),2016,37(02):67-72.[doi:10.3969/j.issn.1671-6833.201412053]
　Li Haitao,Su Jingwen,Wei Dongdong,et al.Comparison Study on Parallel Bamboo Strand Lumber under Axial Compression for Different Directions Based on the Large Scale[J].Journal of Zhengzhou University (Engineering Science),2016,37(02):67-72.[doi:10.3969/j.issn.1671-6833.201412053]
点击复制

基于大尺度试件重组竹各向轴压力学性能研究()
分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年02期
页码:
67-72
栏目:
出版日期:
2016-04-18

文章信息/Info

Title:
Comparison Study on Parallel Bamboo Strand Lumber under Axial Compression for Different Directions Based on the Large Scale
作者:
李海涛1; 苏靖文1; 魏冬冬2; 张齐生1; 陈国1
1.南京林业大学土木工程学院,江苏南京,210037;2.江西飞宇竹业集团有限公司,江西奉新,330700
Author(s):
Li Haitao1; Su Jingwen1; Wei Dongdong2; Zhang Qisheng1; Chen Guo1
1. School of Civil Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037; 2. Jiangxi Feiyu Bamboo Industry Group Co., Ltd., Fengxin, Jiangxi, 330700
关键词:
竹材重组材; 轴心抗压; 破坏机理; 抗压强度; 弹性模量; 泊松比
Keywords:
DOI:
10.3969/j.issn.1671-6833.201412053
文献标志码:
A
摘要:
对大尺度重组竹试件进行了3个方向轴心受压试验研究与分析,探讨了其破坏机理及所测参量之间的相互关系.竹重组材的受压破坏属于延性破坏,沿3个方向的破坏过程均经历弹性阶段、弹塑性阶段、塑性阶段和破坏阶段;但破坏阶段有所区别.试件各向受压的最终破坏形态较接近,均出现沿对角线方向的主裂缝.顺纹方向的实测抗压强度、弹性模量和泊松比值最大,离散性较大;横纹方向Ⅰ的抗压强度稍大于横纹方向Ⅱ的抗压强度,但其弹性模量和泊松比均比横纹方向Ⅱ对应的值要小.基于试验结果,给出了各个方向抗压强度、弹性模量和泊松比相互之间对应的关系.
Abstract:
Axial compression tests in three directions were carried out on large-scale recombined bamboo specimens, and the relationship between the failure mechanism and the measured parameters was discussed. The failure process in all directions goes through the elastic stage, elastic-plastic stage, plastic stage and failure stage; however, the failure stages are different. The final failure forms of the specimens under compression in all directions are relatively similar, and the main cracks along the diagonal direction appear in both. The measured compressive strength, elastic modulus, and Poisson’s ratio along the grain direction are the largest, and the dispersion is large; the compressive strength in the grain direction I is slightly greater than that in the grain direction II, but the elastic modulus and Poisson’s ratio are both It is smaller than the value corresponding to the transverse direction II. Based on the test results, the corresponding relationship between the compressive strength, elastic modulus and Poisson’s ratio in each direction is given.
更新日期/Last Update: