Work

A modified damaged stress model for fatigue life prediction based on load interaction

Year: 2024

Type: article

Abstract: This study proposes a modified Damage Stress Model (DSM) for fatigue life prediction, addressing the variability of ultimate stress during damage transfer under multi-stage stress. The model incorporates Generalized Ultimate Stress (GUS), influenced by the ultimate stress, the sum of the previous-stage fatigue damage, and the ratio of adjacent stress. Comparative analysis with the Miner, DSM, and Manson models, using experimental data from multiple materials and stages, shows that the proposed model outperforms others, rectifying limitations of the original DSM and providing more accurate fatigue predictions.

Source: Heliyon

DOI: 10.1016/j.heliyon.2024.e40357

Authors: Lu Zhang, Hongli Liu, Wei Zhou

Institutions: Ministry of Transport, Research Institute of Highway

Language: English

Topic: Fatigue and fracture mechanics

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,100

Funders: Ministry of Transport of the People's Republic of China, Central Public-interest Scientific Institution Basal Research Fund, Chinese Academy of Fishery Sciences