Analysis of the Void Volume Fraction for S235JR Steel at Failure for Low Initial Stress Triaxiality

Kossakowski, P.

doi:10.2478/ace-2018-0007

Cited by 11 publications

(12 citation statements)

References 17 publications

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“…Although many of them are in good technical condition, it is necessary to monitor their safety of use and check current load-carrying capacity. In this field, many sophisticated methods were developed [33][34][35][36], which allow us to analyse the stress and strain state in critical parts of the bridges prone to damage, as well as to predict the emergency and model time to failure.…”

Section: Discussionmentioning

confidence: 99%

Mechanical Properties of Bridge Steel from the Late 19th Century

Kossakowski

2021

Applied Sciences

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This article presents the results of testing of the strength of structural steel taken from a railway bridge. It was built within the borders of today’s Poland during the late 19th century and was in use for over 100 years, until the early 21st century. The main mechanical parameters of the bridge steel, such as its static and impact strength were determined. The results of the analysis of fracture surfaces with the aim of the identification of the material’s macrostructure are also presented. This article discusses the findings and analyses the values of material parameters in the context of requirements resulting from existing standards, and compares the results with those obtained during the testing of bridge steels of a similar age and operational period.

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Section: Discussionmentioning

confidence: 99%

Mechanical Properties of Bridge Steel from the Late 19th Century

Kossakowski

2021

Applied Sciences

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“…The value of f F corresponds to the criterion of material failure, and for metals ranges from 0.10–0.20. This can also be experimentally determined [ 30 ].…”

Section: Finite Element Analysismentioning

confidence: 99%

Experimental and Numerical Investigation into Failure Modes of Tension Angle Members Connected by One Leg

Bernatowska

Ślęczka

2021

Materials

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This paper presents the results of experimental and numerical tests on angle members connected by one leg with a single row of bolts. This study was designed to determine which failure mode governs the resistance of such joints: net section rupture or block tearing rupture. Experimental tests were insufficient to completely identify the failure modes, and it was necessary to conduct numerical simulations. Finite element analysis of steel element resistance based on rupture required advanced material modelling, taking into account ductile initiation and propagation of fractures. This was realised using the Gurson–Tvergaard–Needleman porous material model, which allows for analysis of the joint across the full scope of its behaviour, from unloaded state to failure. Through experimental testing and numerical simulations, both failure mechanisms (net section and block tearing) were examined, and an approach to identify the failure mode was proposed. The obtained results provided experimental and numerical evidence to validate the strength function used in design standards. Finally, the obtained results of the load capacity were compared with the design procedures given in the Eurocode 3′s current and 2021 proposed editions.

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“…The f F value corresponds to the destruction of the material and for metals ranges from 0.10 to 0.20. It can also be determined from the relationship (3.6) or experimentally [24,26].…”

Section: Porous Materials Modelmentioning

confidence: 99%

Numerical Simulations of Ductile Fracture in Steel Angle Tension Members Connected with Bolts

Bernatowska

2020

Civil and Environmental Engineering Reports

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The aim of the paper is to verify and present methodology for ultimate tensile resistance prediction in steel angle tension members connected to gusset plates with one row of bolts. After a description of the experimental investigations, the next step was to build numerical models. The subjects of the experiments consisted of single plate specimens with drilled holes and angles connected to gusset plates with 1, 2, 3, or 4 bolts. Close attention was given to choosing the appropriate material model, which takes into account the influence of microstructural damage and the process of ductile fracture initiation and propagation. The porous Gurson-Tvergaard-Needleman material model was analysed and the paper focuses on hierarchical validation of numerical models of steel angle bolted connections, which will then be used for parametric studies.

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Analysis of the Void Volume Fraction for S235JR Steel at Failure for Low Initial Stress Triaxiality

Cited by 11 publications

References 17 publications

Mechanical Properties of Bridge Steel from the Late 19th Century

Mechanical Properties of Bridge Steel from the Late 19th Century

Experimental and Numerical Investigation into Failure Modes of Tension Angle Members Connected by One Leg

Numerical Simulations of Ductile Fracture in Steel Angle Tension Members Connected with Bolts

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