John Valentine

Mechanical engineering

Hometown: Clarkdale, Arizona, United States

Graduation date: Spring 2024

Additional details: Honors student

Data icon, disabled. Four grey bars arranged like a vertical bar chart.

FURI | Spring 2023

Numerical Simulations of Atomic Force Microscopy Trials Observing the Effect of Surface Roughness on Tip Health, and Probe Deformation for Soft Materials with Hard Inclusions

Prior researchers have studied the material properties of varying test specimens using atomic force microscopy. The research literature on these trials has not taken into account the effect of surface roughness on measured values. When the probe tip is in contact with a rough surface the force of the probe tip is split into normal and tangential components. The magnitudes of these components vary in relation to the slope at the point of probe contact. In addition to varying normal forces, tip health degradation and probe deformation are caused by tangential forces on the probe causing torsion on the cantilever.


QR code for the current page

It’s hip to be square.

Students presenting projects at the Fulton Forge Student Research Expo are encouraged to download this personal QR code and include it within your poster. This allows expo attendees to explore more about your project and about you in the future. 

Right click the image to save it to your computer.