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http://dx.doi.org/10.1016/j.ijnaoe.2016.08.001

On the material properties of shell plate formed by line heating  

Lim, Hyung Kyun (Hyundai Mipo Dockyard Co., Ltd.)
Lee, Joo-Sung (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.9, no.1, 2017 , pp. 66-76 More about this Journal
Abstract
This paper is concerned with investigating the plastic material properties of steel plate formed by line heating method, and is aimed at implementing more rational design considering the accidental limit states such as collision or grounding. For the present study, line heating test for marine grade steel plate has been carried out with varying plate thickness and heating speed, and then microscopic examination and tensile test have been carried out. From the microscopic, it is found that the grain refined zones like ferrite and pearlite are formed all around the heat affected zone. From the tensile test results, it is seen that yield strength, tensile strength, fracture strain, hardening exponent and strength coefficient vary with plate thickness and heat input quantity. The formulae relating the material properties and heat input parameter should be, therefore, derived for the design purpose considering the accidental impact loading. This paper ends with describing the extension of the present study.
Keywords
Line heating; Plasticity and fracture characteristics; Diffusion necking; Microscopic examination; Material properties; Water cooling;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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