Digital shearography approach for stress intensity factors calculation in friction stir welded nugget of AA2024 aluminum alloy

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

Place of Publication:Optics & Laser Technology

Key Words:Fatigue crack growth;Stress intensity factor; Shearography;Friction stir welding;2024 aluminum alloy

Abstract:The purpose of this paper is to calculate the stress intensity factor and fatigue life estimation in AA2024-T351 aluminum alloy welded specimens under uniaxial load with low-cycle fatigue, using digital shearography method. For this purpose, using optomechanical relations and failure mechanics concepts, the relationship between surface displacement derivatives and stress intensity factors in uniaxial loading mode is extracted analytically. To prove the validity of the model results, numerical and experimental studies have been performed on compact tension (CT) specimens that have been....

All the Authors:Filippo Berto

First Author:Reza Masoudi Nejad

Indexed by:Journal Paper

Correspondence Author:Danial Ghahremani Moghadam,Khalil Farhangdoost

Document Code:107854

Discipline:Engineering

First-Level Discipline:Mechanical engineering

Volume:149

Page Number:107854

ISSN No.:0030-3992

Translation or Not:no

Date of Publication:2022-01-10

Date of Publication:2022-01-10