Experimental and numerical investigations of progressive collapse of ageing structures exposed to corrosion and locked cracks - Project - Bridge of Knowledge

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Experimental and numerical investigations of progressive collapse of ageing structures exposed to corrosion and locked cracks

Every steel structures that are exposed on the seawater environment are subjected to corrosion degradation. When we are dealing with ships during the exploitation time, the locked cracks could exist as well. Both of this phenomenon are significantly influencing the strength of ship structure, which is composed of the stiffened plates. Additionally, these processes are random and prediction of them is not easily obtained. The aim of this project is to analyze systematically influence of both corrosion and locked cracks (non-propagating ones) on the ultimate strength of stiffened plates. There will be carried out numerical and experimental analysis. This project will lead to new knowledge about the influence of all relevant parameters on the ultimate strength of stiffened plates.

Details

Financial Program Name:
PRELUDIUM
Organization:
Narodowe Centrum Nauki (NCN) (National Science Centre)
Agreement:
UMO-2018/31/N/ST8/02380 z dnia 2019-06-13
Realisation period:
2019-06-13 - 2022-06-12
Project manager:
dr inż. Krzysztof Wołoszyk
Team members:
Realised in:
Institute of Ocean Engineering and Ship Technology
Project's value:
143 000.00 PLN
Request type:
National Research Programmes
Domestic:
Domestic project
Verified by:
Gdańsk University of Technology

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  • FE analysis of support-specimen interaction of compressive experimental test
    Publication

    - Year 2019

    The objective of this work is to investigate the support-specimen interaction during the compressive experimental testing of stiffened plates. The interaction is analyzed employing the nonlinear Finite Element Method using the commercial software ANSYS. The connection between the stiffened plate and testing supports is modelled with the use of contact elements, where several possible interaction scenarios are investigated, and...

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  • Uncertainty assessment of ultimate strength of corroded stiffened plates subjected to different maintenance actions
    Publication

    - Year 2019

    The study deals with the uncertainty assessment of different governing factors related to the ultimate strength of the corroded stiffened plates. The load-carrying capacity is predicted with the use of the nonlinear Finite Element Method. The most influencing governing factors in the non-linear FE analysis, such as material properties and initial imperfections are modeled and analysed as stochastic variables. The ultimate strength...

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