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ULIBTK 2021

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Research Article

Fatigue life prediction of steel bridge connections using fracture mechanics models

Warda Abdulla, Craig Menzemer

Department of Civil Engineering, The University of Akron, U.S.A.

Keywords

Abstract


AFGROW models; 

Crack growth rate; 

Fatigue life prediction; 

Riveted connections; 

Stress intensity factor; 

Striation spacing 

Riveted connections used in steel bridges may be subjected to localized fatigue cracking. Experimental data were obtained from coupon fatigue tests for the investigation of the role of the riveting process on fatigue resistance. Fracture mechanics models of both open-hole and riveted A36 steel coupon specimens were used to predict the fatigue life. Stress versus the number of cycles to failure curves (S-N curves) were established based on empirical results and combined with Air Force Grow software (AFGROW) fatigue life estimates and compared. Fatigue crack growth test data was developed and compared with the material library in AFGROW. Fracture surfaces of the specimens were examined and striation spacing measured using Scanning Electron Microscope (SEM) images. Subsequently, stress intensity factors and local crack growth rates were estimated. Estimates of the local crack growth rates and the estimated stress intensity ranges were compared with data obtained from fatigue crack growth test results. Test results demonstrated that fatigue life was improved with the riveting process. In addition, accurate fatigue life predictions required consideration of the compressive residual stresses due to riveting.

© 2021 MIM Research Group. All rights reserved.

LATEST News


15/03/2021 Collaboration for ICWET'21: Editorial Board of our journal and Organizing Committee of the6th International Conference on Welding Technologies and Exibition (ICWET’21) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


11/02/2021 Collaboration for ULIBTK 2021: Editorial Board of our journal and Organizing Committee of the 23. Congress on Thermal Science and Technology (ULIBTK 2021) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


31/12/2020 Most Cited Award: 

According to the Editorial Board evaluation, the paper authored by Nelson Batista, Rui Melicio, Victor Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self-start capabilities considering symmetric and asymmetric airfoils" is awarded the 2020 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM).


31/12/2020 Best Paper Award:

According to the Advisory Board decision, the paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 2020 Best Paper Award of Research on Engineering Structures and Materials (RESM).


02/11/2020 Indexed by SCOPUS: We are informed that our journal is accepted to be included in the SCOPUS Index. See news for more info.


(More details of the news may be given in the News section)


For more see News...

LATEST AWARDS


2020 Most Cited Paper Award:

The paper authored by Nelson Batista, Rui Melicio, Victor Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self-start capabilities considering symmetric and asymmetric airfoils" is awarded the


2020 Best Paper Award:

The paper authored by Ahsen Ünal, Işıl Özer, Melek Erol Taygun, Sadriye Küçükbayrak entitled as “Fabrication and in-vitro evaluation of copper doped bioactive glass/polymer composite scaffolds for bone tissue engineering” is awarded the 


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Last Update:

22.09.2021

(dd.mm.yyyy)