ASSESSING THE INFLUENCE OF LOCAL CORROSION IN THE JOINTS OF COMPONENTS ON THE LIFE OF MULTIELEMENT ROD STRUCTURES
| العنوان: | ASSESSING THE INFLUENCE OF LOCAL CORROSION IN THE JOINTS OF COMPONENTS ON THE LIFE OF MULTIELEMENT ROD STRUCTURES |
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| المؤلفون: | H. P. IVANOVA, O. V. SOLODYANKIN, V. V. YANKO, S. O. BARSUKOVA |
| المصدر: | Bridges and tunnels: Theory, Research, Practice. :93-99 |
| بيانات النشر: | Dnipropetrovsk National University of Railway Transport, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | General Earth and Planetary Sciences, General Environmental Science |
| الوصف: | Purpose. The paper analyzes the reasons resulting in destruction of multielement metal structures. Attention is paid to the impact of deformation types on the corrosion of components of such structures as well as to their potential safe operation. Influence of local corrosion in the joints of rod structure members of rod on the terms of its bearing capacity exhaust has been studied. Methodology. To solve the life problem, a 16-rod flat frame has been considered as a simulation structure with design parameters, material characteristics, geometric outline, boundary conditions, and loading conditions. Results. A frame life problem has been considered taking into consideration local corrosion in the joints of rods. The problem involves two calculation schemes with common formulation but having proper peculiarities. Its common is in the availability of inverse association within the calculation models. The difference is as follows. If the number of parameters describing a corrosion process within the frame components is finite during the simulation process in the rod section, where it is fixed, it can be considered as a fragment of flatly stressed plate (FSP) where corrosion velocity depends upon stresses. Since stress-strain state is nonuniform in terms of its area, the number of such parameters tends to infinity. It is the peculiarity defining difference of the research from the majority of the known studies. Scientific novelty. Certain reasons of origination of typical defects and damages of rod metal structures have been considered inclusive of simulation of processes of damage formation as well as defect location. The tendency potential is to expand opportunities while forecasting the structure life with regard to its operational conditions. Practical value. Local corrosion neglecting in the rod joints gives rise to the substantial overestimation of analytical life value. In such a way, structural destruction does not result from bearing capacity exhaust of its component. It results from the broken ties between its separate components despite the fact that a reserve of their bearing capacity is still sufficient. |
| تدمد: | 2413-6212 2227-1252 |
| DOI: | 10.15802/bttrp2022/268406 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::eec38784a39d5bc40788d8a7180dca5b https://doi.org/10.15802/bttrp2022/268406 |
| رقم الانضمام: | edsair.doi...........eec38784a39d5bc40788d8a7180dca5b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24136212 22271252 |
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| DOI: | 10.15802/bttrp2022/268406 |