Work

Fatigue life predictions of notched samples based on average strain energy density

Year: 2025

Type: article

Abstract: The approach for fatigue lifetime predictions of notched specimens based on the theory of critical distances is modified to the use of strain energy density. Average values of strain energy density are used here to determine critical distances in dependence on number of cycles to failure (for fatigue loading). These values are modified to be used to predict the fatigue life of different notches. Classical critical distance theory uses the opening stress distribution (normal loading mode). The use of strain energy density allows other stress components to be included in the calculations.

Source: Procedia Structural Integrity

DOI: 10.1016/j.prostr.2025.06.112

Authors: Jan Klusák, Kamila Kozáková

Institutions: Czech Academy of Sciences, Institute of Physics of Materials, Brno University of Technology

Language: English

Topic: Fatigue and fracture mechanics

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funders: European Commission, Ministerstvo Školství, Mládeže a Tělovýchovy, Vysoké Učení Technické v Brně

Awards: G1918066331, G2246193470