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The journal of RESM is open to proposals for special issues on emerging related topics. More info is here.

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.

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8/12/2023 Special Issue: Embark on a journey of innovation with the journal of Research on Engineering Structures and Materials as we unveil a compelling opportunity for contributors in our upcoming special issue, "Design, Analysis, and Manufacturing of Composite Vehicle Structures." Led by distinguished Guest Editors Liubov Gavva and Oleg Mitrofanov from Moscow Aviation Institute. For more info see the link.


21/10/2023 Journal Submission System Upgrade Completed: We're delighted to announce that our Journal Submission and Tracking System has undergone a significant upgrade, aimed at enhancing your experience. We apologize for the delay, and any inconvenience it may have caused. Here are the key enhancements from a user perspective:

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27/12/2022 Reviewer AwardsThe winners of 2022 reviewer awards of Research on Engineering Structures and Materials (RESM) are announced. More information can be found at Reviewer Awards section. 


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LATEST AWARDS


2022 Reviewer Awards:

Please, visit Reviewer Awards section for the winners of the 2022 RESM reviewer awards.


2022 Best Paper Award:

The paper authored by Nitin Kumar, Michele Barbato, Erika L. Rengifo-López and Fabio Matta entitled as “Capabilities and limitations of existing finite element simplified micro-modeling techniques for unreinforced masonry” is awarded the 


2022 Most Cited Paper Award:

The paper authored by Aykut Elmas, Güliz Akyüz, Ayhan Bergal, Müberra Andaç and Ömer Andaç entitled as “Mathematical modelling of drug release" is awarded the


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