| 冲击载荷下含表面裂纹潜艇典型结构的动态断裂研究 |
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| 引用本文： | 陈家旺,罗广恩,李良碧,王自力.冲击载荷下含表面裂纹潜艇典型结构的动态断裂研究[J].船舶力学,2012,16(4):399-407. |
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| 作者姓名： | 陈家旺 罗广恩 李良碧 王自力 |
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| 作者单位： | 江苏科技大学船舶与海洋工程学院,江苏镇江212003;浙江省海盐县港航管理处,浙江海盐314300;江苏科技大学船舶与海洋工程学院,江苏镇江212003;中国船舶科学研究中心,江苏无锡214082;江苏科技大学船舶与海洋工程学院,江苏镇江212003;江苏现代造船技术有限公司,江苏镇江212003;江苏科技大学船舶与海洋工程学院,江苏镇江,212003 |
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| 基金项目： | 船舶工业国防科技预研基金，国家自然科学基金，江苏省自然科学基金 |
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| 摘 要： | 文章基于大型通用有限元分析软件ANSYS研究了带有初始表面裂纹的潜艇典型结构在不同下潜深度、不同爆心到船壳距离R和不同作用方位冲击载荷作用下的动态应力强度因子及其最大值与冲击因子的变化规律,然后以921A钢为例对多种工况下结构是否发生失稳断裂作出初步判断。
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| 关 键 词： | 动态应力强度因子 动态断裂 表面裂纹 冲击载荷 |
Research on dynamic fracture of typical structure of submarine with surface crack under impact loading |
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| CHEN Jia-wang
,
LUO Guang-en
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LI Liang-bi
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WANG Zi-li.Research on dynamic fracture of typical structure of submarine with surface crack under impact loading[J].Journal of Ship Mechanics,2012,16(4):399-407. |
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| Authors: | CHEN Jia-wang LUO Guang-en LI Liang-bi WANG Zi-li |
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| Institution: | 1(1 Shool of Naval architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China; 2 Haiyan Port and Shipping Management Authority, Haiyan 314300, China; 3 China Ship Scientific Research Center, Wuxi 214082, China; 4 Jiangsu Modern Shipbuilding Technology Co., LTD., Zhenjiang 212003, China) |
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| Abstract: | Based on finite element analysis software ANSYS, the dynamic stress intensity factor and the variety law of its maximum value along with the impulsive factor of the typical structures of the submarine with a initial surface crack are researched. Different depth of the submarine, different distance from the blast center and different orientation of blast point and ship are considered.Then taking 921A steel for example, the unstable fractured of the typical structure of the submarine is preliminary judged under the various conditions. |
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| Keywords: | dynamic stress intensity factor dynamic fracture surface crack impact loading |
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