摘要
应用类似于土壤粘附拉脱力试验的界面拉伸试验 ,证明了光滑表面的界面存在粘性物质时 ,如空气、水和黄油 ,界面介质在拉伸过程中将产生空穴负压现象 ,造成界面的粘附力增大 ;分析了空穴的形成、空穴膜的流动和破坏过程 。
Tensile tests, similarly to an interfacial tensile test for soil adhesive attraction, validated that a cavity phenomenon of negative pressure would happen and the adhesive attraction would increase when some adhesive materials, like air, water or albany grease, existed on interface of a smooth surface. The forming, transmuting and collapsing processes of the cavity film were analyzed and validated by the experiments and the high-speed motion pictures of these processes.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2004年第5期165-169,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
教育部科学技术研究重点项目 (项目编号 :0 2 0 89)
国家重大基础研究前期研究资助项目 (项目编号 :2 0 0 2 CCA0 12 0 0 )
关键词
空穴负压现象
界面
拉伸试验
土壤粘附
Interface, Tensile test, Soil adhesion, Cavity, Negative pressure
