木材科学与技术2024，Vol.38Issue(2)：60-67,8.DOI:10.12326/j.2096-9694.2023170
密度与含水率双因素作用下重组竹顺纹弹性模量的预测与分析
Predicting and Analyzing Effects of Density and Moisture Content on Elastic Modulus Parallel to Grain of Bamboo Scrimber
摘要
Abstract
In this study,bamboo scrimber specimens with three densities(1.10,1.20,1.30 g/cm3)and five moisture contents(4%,8%,12%,16%,20%)were tested for tensile and compressive elastic modulus parallel to grain.The changes of tensile and compressive elastic modulus parallel to the grain of bamboo scrimber under different densities and moisture contents were analyzed.The results showed that the tensile and compressive elastic modulus parallel to the grain of bamboo scrimbers increased with the increase of density.When the moisture contents increase,the tensile and compressive elastic modulus parallel to the grain decrease and then become balanced eventually.Through experiment research and data fitting,a two-parameter coupling model of tensile and compressive elastic modulus of bamboo scrimber was proposed.Both the linear combination model and the ASTM combination model can well predict the theoretical values of tensile and compressive elastic modulus of bamboo scrimber with changes in density and moisture content.The maximum errors between the measured values and the predicted values of tensile and compressive elastic modulus parallel to grain were 5.28%,8.20%for the linear combination model,and 8.91%,8.67%for the ASTM combination model,respectively.The linear combination model is recommended due to its effective calculation process in practical applications.关键词
重组竹/顺纹抗拉、抗压弹性模量/密度/含水率/模型预测Key words
bamboo scrimber/tensile and compressive elastic modulus parallel to the grain/density/moisture content/model prediction分类
轻工纺织引用本文复制引用
黄庚浪,盛叶,张峰,江凤娇,叶小凡..密度与含水率双因素作用下重组竹顺纹弹性模量的预测与分析[J].木材科学与技术,2024,38(2):60-67,8.基金项目
福建省科技厅国家科技项目备案类"秸秆夹芯竹木复合集装箱底板关键技术研究及应用"(2022L3006) （2022L3006）
中建股份科技研发项目"绿色低碳装配式重组竹建筑关键技术研究"(CSCEC-2022-Q-58). （CSCEC-2022-Q-58）
