Fractographic-fractal dimension correlation with crack initiation and fatigue life for notched aluminium alloys under bending load

2023-05-10 Hits:

Affiliation of Author(s):University of Electronic Science and Technology of China

Journal:Engineering Failure Analysis

Key Words:Fractography; Fractal dimension; Aluminium alloy; Bending fatigue; Fatigue crack initiation

Abstract:In this study, fatigue fracture surfaces of aluminium alloy 2017-T4 notched specimens were investigated under cyclic bending to find an alternative failure loading index.. The surface topographies were measured on the entire fracture area with an optical profilometer for different loading conditions. Fatigue crack initiation life Ni and total fatigue life Nf were examined using standard surface topography parameters (such as, root mean square height Sq, arithmetical mean height Sa, maximum height Sz) and non-standard surface topography parameters (such as, fractal dimension Df). Fatigue ...

All the Authors:Dariusz Rozumek,Sebastian Faszynka,Ricardo Branco,Shun-Peng Zhu,Reza Masoudi Nejad

Indexed by:Journal Paper

Correspondence Author:Wojciech Macek

Document Code:107285

Discipline:Engineering

First-Level Discipline:Mechanical engineering

Volume:149

Page Number:107285

ISSN No.:1350-6307

Translation or Not:no

Date of Publication:2023-04-24

Date of Publication:2023-04-24