中国舰船研究Issue(1)：46-50,5.DOI:10.3969/j.issn.1673-3185.2015.01.007
加筋板弹塑性断裂的J积分计算
Elasto- Plastic Fracture Analysis of J Integration for Stiffened Plates
摘要
Abstract
Based on the EPRI method of fracture analysis and combined with the interaction coefficient of stiffeners and plates, a computational formula of J integration is proposed in this paper for the material that coincides with the Ramberg-Osgood stress-strain relationship. Meanwhile, numerical simulation is carried out with the finite element software ANSYS,whose results are compared with the data obtained from the theoretical model. It is shown that the theoretical model can be viewed as reliable, which accurately reflects the fracture behavior of the stiffened plate and the anti-crack property of stiffeners. Therefore, it can be di⁃rectly applied into the theoretical analysis of stiffened plates under fatigue loads. Overall,the results in this paper are of vital importance for the low cycle fatigue research on hull structures.关键词
J积分/加筋板/应变硬化材料/弹塑性断裂Key words
J integration/stiffened plate/strain-hardening material/elasto-plastic fracture分类
交通工程引用本文复制引用
王红,杨平,邓军林,董琴..加筋板弹塑性断裂的J积分计算[J].中国舰船研究,2015,(1):46-50,5.基金项目
国家自然科学基金资助项目（51479153）；中央高校研究生自主创新资助项目 （）
