竹地板的球形压入载荷效应  

Load Effect of Bamboo Floor under Spherical Indentation

作　　者：闫薇[1] 安然[1] 朱一辛[1] 

机构地区：[1]南京林业大学木材工业学院,江苏南京210037

出　　处：《竹子研究汇刊》2013年第4期29-32,共4页Journal of Bamboo Research

基　　金：江苏省高校优势学科建设工程资助项目(PAPD)

摘　　要：应用仪器化压痕方法对炭化侧拼竹地板的球形压入载荷持续效应和载荷历程效应进行了分析,结果表明:对于球形压入载荷持续效应,载荷越大,压痕深度越大,且压痕深度随时间的延长而增加;与间歇式载荷历程效应相比,连续式载荷历程效应产生较大的压痕深度;间歇式球形压入载荷历程使竹材产生了变形钝化,与载荷持续效应相比,在相同的载荷保持时间内压痕深度减小,而连续式加载历程此特征不明显。The load duration effect and load history effect of bamboo floor under spherical indentation have been analysed through the instrumented indentation test, the results indicated that the indentation depth increased with greater load or longer load duration. Continuous load history made larger indentation depth in comparison with batch one. Deformation passivation occurred under batch load, and indentation depth decreased in comparison with the continuous load at the same duration. Thus, the continuous load history effect was not obvious.

关 键 词：竹地板 仪器化压痕 载荷持续效应 载荷历程效应 压痕深度 钝化 

分 类 号：TS664.2[轻工技术与工程]