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An Efficient Criterion for Evaluating Fatigue Strength Improvement Through the Stop-Hole Technique

Year: 2025

Type: conference-paper

Abstract: This study investigates the effect of a non-zero fillet radius, ρ, on the fatigue behaviour of notched components under uniaxial loading. A new diagram is introduced, which discusses the relationship between the notch tip radius and the fatigue limit. It also identifies a critical radius, ρ**, precisely marking the transition from sharp to blunt notch behaviour. Additionally, its application to the “stop-hole” technique is considered, where both material properties and geometric characteristics are analysed, demonstrating that introducing a fillet radius can improve fatigue resistance.

DOI: 10.3390/engproc2025085004

Authors: Bruno Atzori, Luca Vecchiato, Giovanni Meneghetti

Institution: University of Padua

Language: English

Topic: Fatigue and fracture mechanics

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

OpenAlex ID: W4407428464

FWCI:

Cites: 15

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Related to: 10