Author:
Zhao Kuangjie,Liu Xianru,Li Jianguang
Abstract
Abstract
In order to consider the characteristics of materials and the impact of sea ice collision in the calculation of ultimate strength of stiffened plates, based on the study of dynamic constitutive models of sea ice and polar marine steel at low temperature, this paper explores the calculation model of ultimate strength of stiffened plates for hull with collision dents considering the effects of low temperature and strain rate of steel. A constitutive model of EH36 steel considering low temperature effect is proposed, which has practical engineering value. According to the quasi-static tensile test results of EH36 steel at different temperatures, the relation formula of the influence of temperature reduction on the yield strength of EH36 steel was fitted. Based on the test data and Cowper-Symonds model, a constitutive model of EH36 steel considering low temperature effect is proposed, and the constitutive model is applied to the test simulation calculation, which proves that the dynamic constitutive model of EH36 steel has practical engineering value.
Subject
General Physics and Astronomy
Reference5 articles.
1. On the sensitivity of undeformed Arctic sea ice to its vertical salinity profile[J];Vancoppenolle;Geophysical Research Letters,2016
2. Pack-ice studies in the Arctic Ocean[J];Schwarzacher;Journal of Geophysical Research,1959
3. A review of sea ice density[J];Timco;Cold Regions Science&Technology,1996
4. Test database of the mechanical properties of mild, high-tensile and stainless steel and aluminium alloy associated with cold temperatures and strain rates[J];Paik;Ships & Offshore Structures,2017
5. Low temperature impact toughness test of Q460C butt weld of high strength steel [J];Yuanqing;Journal of shenyang jianzhu university (Natural Science Edition)
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