Paik, J; (2017) Recent advances and future trends on plasticity and impact mechanics of ships and offshore structures. Procedia Engineering , 173 pp. 17-24. 10.1016/j.proeng.2016.12.011.

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Abstract

While in service, ships and offshore structures are likely subjected to various types of extreme and accidental events that essentially involve plasticity and impact issues. Ships and offshore structures are typical examples of thin-walled structures, but their environments in construction and operation are quite unique compared to other types of thin-walled structures. Those include welding induced high temperature causing initial imperfections (e.g., initial distortions, residual stress or softening in the heat-affected zones of welded aluminium structures); abnormal waves/winds/currents; dynamic pressure loads arising from sloshing, slamming or green water; low temperature in Arctic operations; cryogenic conditions resulting from liquefied natural gas cargo; ultra-high pressure in ultra-deep waters; elevated temperature due to fire; blast loads due to explosion; impact loads arising from collision, grounding or dropped objects; age-related degradation such as corrosion, fatigue cracking and local denting damage; and hull girder collapse or sinking. Such events sometimes result in catastrophic consequences that lead to casualties, property damage, and pollution. This paper presents recent advances and future trends with the focus on plasticity and impact mechanics of ships and offshore structures in association with extreme and accidental conditions.

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