西安电子科技大学机电工程学院,西安,710071
网络首发:2011-11-10,
纸质出版:2011
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樊康旗, 霍海东, 王波. 球体-平面黏附模型分析[J]. 西安交通大学学报, 2011,45(11):106-111.
Adhesion Between Sphere and Plane[J]. 2011, 45(11): 106-111.
为确定Bradley黏附模型与Hamaker假设黏附模型之间的关系和差异
运用Hamaker假设和原子间的Lennard-Jones势能推导出了两平面间的相互作用力
通过与平面间的Lennard-Jones势能进行对比分析
得到了原子势参数与平面势参数间的关系式.根据此关系式将Bradley模型转化为由Hamaker常数描述的黏附模型
并根据Hamaker常数的定义式将Bradley模型最终转化为由原子势参数和Hamaker常数描述的黏附模型.理论分析与仿真结果表明
基于Hamaker假设的黏附模型与Bradley黏附模型完全一致
证实了原子势参数与平面势参数间关系式的正确性
为采用连续介质力学方法研究微观离散世界的黏附问题提供了理论基础.
To determine the relationship between the Bradley model and the Hamaker hypotheses-based adhesion model
the Hamaker hypotheses and interatomic Lennard-Jones potential are employed to obtain the interaction force between two planes. The comparison of the interaction force obtained with the interfacial Lennard-Jones potential is conducted to determine the definite relationships between the parameters of the interatomic potential and that of the interfacial potential
by which the Bradley model is expressed in terms of Hamaker constant. The definition of Hamaker constant
the Bradley model is further described by interatomic potential parameters and Hamaker constant. Theoretical analysis and numerical simulation indicate that the Bradley model is identical to the Hamaker hypotheses-based adhesion model. The relationships between the parameters of the interatomic potential and that of the interfacial potential are confirmed.
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