Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Mechanical Engineering
Atomistic Study Of Lateral Contact Stiffness In Friction Force Microscopy, H. Gao, Yalin Dong, A. Martini
Atomistic Study Of Lateral Contact Stiffness In Friction Force Microscopy, H. Gao, Yalin Dong, A. Martini
Dr. Yalin Dong
The effective stiffness of a friction force microscope tip–substrate system is an important parameter that describes the relationship between lateral force and elastic deformation. In this study, we use a multi-spring model to simplify the system, where two contributions, the tip apex stiffness and the lateral contact stiffness, are discussed in detail. Molecular dynamics simulations are used to characterize stiffness by simulating a tip apex subject to shear or sliding over a substrate surface. The results show that, although the height of the tip apex and tip–substrate orientation affect the various stiffness contributions, the contact itself dominates the overall compliance.
Atomistic Study Of Lateral Contact Stiffness In Friction Force Microscopy, Huang Gao, Yalin Dong, Ashlie Martini
Atomistic Study Of Lateral Contact Stiffness In Friction Force Microscopy, Huang Gao, Yalin Dong, Ashlie Martini
Dr. Yalin Dong
The effective stiffness of a friction force microscope tip–substrate system is an important parameter that describes the relationship between lateral force and elastic deformation. In this study, we use a multi-spring model to simplify the system, where two contributions, the tip apex stiffness and the lateral contact stiffness, are discussed in detail. Molecular dynamics simulations are used to characterize stiffness by simulating a tip apex subject to shear or sliding over a substrate surface. The results show that, although the height of the tip apex and tip–substrate orientation affect the various stiffness contributions, the contact itself dominates the overall compliance.