Review article
https://doi.org/10.21278/brod68202
AGING EFFECTS ON SHIP STRUCTURAL INTEGRITY
Paul Jurišić
; Croatian Register of Shipping, Split, Croatia
Joško Parunov
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Yordan Garbatov
; Centre for Marine Technology and Engineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
Abstract
The most important degradation effects of ship structures are corrosion and fatigue cracks. Both of these aging effects have clear consequences of increasing the level of stresses and degrading the strength of ship structures for almost all relevant failure modes. This study presents an overview of some recent developments on the aging effects on the ship structural integrity. The analysis of the thickness measurements has been undertaken to improve understanding of the corrosion degradation phenomena and to develop prediction models of aging effects suitable for practical applications in the ship structural design and analysis. The study also deals with the application of the non-linear finite element analysis as a suitable tool for a collapse assessment of uniaxially loaded plates and stiffened panels of ship structures weakened by non-uniform corrosion degradation and fatigue cracks. Experimental studies have also been reviewed to better understand the recently found degradation of mechanical properties of corroded steel, while theoretical calculations have been performed to evaluate consequences of such degradation on the ship structural integrity.
Keywords
Corrosion; Fatigue crack; Non- linear finite element method; Ship structures
Hrčak ID:
174069
URI
Publication date:
30.6.2017.
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