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Debiao Meng (University of Electronic Science and Technology of China)Paper Contribution
Modern engineering structures are developing toward larger scales, greater complexity, and harsher environments, posing significant challenges to structural reliability analysis. Traditional methods often suffer from high computational costs and limited accuracy when dealing with highly nonlinear problems, multidimensional uncertainties, and expensive simulations. To address these challenges,...
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Mr Hans Bertheussen (University of Stavanger)Paper Contribution
This paper investigated whether residual bond strength between GFRP reinforcement and concrete stabilizes immediately after cooling from elevated temperatures or continues to evolve over time. Pull-out tests were conducted on sand-coated vinyl ester bars embedded in concrete cubes exposed to 100, 200 and 300°C. Specimens were tested 24 hours, 7 days and 14 days after cooling to assess elapsed...
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Mr Taj Muhammad Tanmoy (University of Stavanger)Paper Contribution
This paper investigates the feasibility of using pultruded Glass Fiber Reinforced Polymer (GFRP) for a 25 m pedestrian truss bridge. A detailed structural design and numerical analysis were carried out to evaluate the strength, stability and serviceability performance of GFRP as an alternative to conventional bridge materials. The bridge model incorporates pultruded U-channels, hollow square...
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Mr Temesgen Teku Jiru (Jimma University)Paper Contribution
Aluminum alloy flange couplings are widely used in rotating machinery and power-transmission systems, but are almost always produced by sand casting, which inevitably introduces gas porosity, shrinkage porosity, and oxide bi-films. Although such defects are known to concentrate stress and initiate fatigue cracks, their effect on flange coupling life under combined axial-torsional loading has...
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Mr Goftila Gudeta Sirata (Silesian University of Technology)Paper Contribution
Rolling contact fatigue in railheads develops under complex, non-proportional multiaxial loading. However, crack-initiation predictions typically depend on a single fatigue criterion applied at a fixed or preselected location. This approach does not account for changes in the material response caused by repeated wheel passages, making it difficult to distinguish the influence of the loading...
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Dawit Muluneh Yona (Gdansk University of Technology, Gdansk, Poland)Paper Contribution
Vibration-based structural diagnosis is considered as an essential technique for assessing the condition of composite-steel structures in marine environments, where durability and corrosion resistance are main considerations. This research proposed a framework that uses the application of continuous wavelet transform on curvature-derived debonding information. Three levels of debonding (4%,...
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Mr Thilina Ganganath Weerakoon (Vilnius Gediminas Technical University)Paper Contribution
Ageing riveted railway bridges are increasingly affected by variable-amplitude train loading, corrosion-induced section loss, rivet deterioration, and uncertainty in visual inspection, making fatigue-risk assessment and maintenance planning complex. Current bridge management practice lacks an integrated decision-support model that can simultaneously predict component-level fatigue risk,...
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Mr Eshetu Tadesse Ymer (Jimma University, University of Stavanger)Paper Contribution
The rapid development of PV worldwide requires the reliable prediction of module lifetimes and appropriate reliability paradigms in order to guarantee the technical and economic feasibility of the technology. However, existing empirical methods for predicting the degradation of PV modules, based mostly on past performance, frequently neglect climate-related variations on a site-by-site basis...
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Mr Ali K Khodabakhsh (Aker Solutions)Paper Contribution
The repurposing of existing subsea natural gas pipelines for hydrogen transport may reduce infrastructure costs in the low-carbon energy transition, but hydrogen exposure can degrade pipeline steels through embrittlement and reduced fatigue resistance. This study assesses the structural integrity and remaining fatigue life of a representative subsea pipeline converted to hydrogen service,...
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Mr Goftila Gudeta Sirata (Silesian University of Technology)Paper Contribution
Compressive residual stresses are introduced into the rim of a railway wheel during manufacture to delay rolling contact fatigue initiation and to slow early crack growth. However, severe tread braking can reduce this stress state through elevated temperatures, thermal softening, and local plastic deformation. Subsequent cooling may redistribute the residual stresses or generate near-surface...
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Mr Erange Guruge (University of Stavanger)Paper Contribution
Hydrogen transportation through pipelines has gained significant attention due to its low carbon footprint; however, hydrogen-assisted cracking (HAC) remains a major challenge. Therefore, this study investigates the effect of surface roughness on the HAC susceptibility of API 5L X52 pipeline steel under slow strain rate tensile (SSRT) testing with in-situ electrochemical hydrogen charging....
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Prof. Viktor Gribniak (Vilnius Gediminas Technical University)Paper Contribution
Fused filament fabrication (FFF) enables the integration of electrically conductive pathways into polymeric components, creating opportunities for embedded sensing and integrated structural health monitoring. Previous investigations by the research team and other authors have demonstrated that conductive polymers exhibit a reliable relationship between mechanical deformation and electrical...
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Marius Ree (UiS)Paper Contribution
Accurate fatigue life prediction for steel connections is vital for structural safety under cyclic loading. While engineers increasingly rely on commercial finite element (FE) software, variations in modeling assumptions and stress definitions can lead to inconsistent results.
This study evaluates the reliability of FE-based fatigue assessments by comparing software predictions against...
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