Work

The Black Metal Tribometer: High-resolution measurement of normal load-indentation curves and partial slip hysteresis cycles

Year: 2025

Type: article

Abstract: A new instrument has been designed for measuring frictional hysteresis cycles and normal load-indentation curves. The primary purpose of the BMT is the validation of more predictive modeling approaches for damping in friction joints . An important original feature of the BMT is its ability to measure both normal and tangential contact behavior without having to separate the samples. Special attention was paid to alignment and smooth motion in order to permit testing nominally flat-on-flat contacts in the microslip regime. Examples are shown for finely resolved, undistorted hysteresis cycles with relative tangential displacement amplitudes in the sub-micrometer range at about 50 MPa nominal normal pressure, which is maintained well over the tangential load cycle.

Source: Tribology International

DOI: 10.1016/j.triboint.2025.110560

Authors: Daniel Fochler, Stefan Schwarz, Lukas Kohlmann, Malte Krack

Institutions: University of Stuttgart, MTU Aero Engines (Germany)

Language: English

Topic: Adhesion, Friction, and Surface Interactions

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $5,390

Funders: Bundesministerium für Wirtschaft und Klimaschutz, Methodist Theological University