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| 潜艇锥柱典型节点表面裂纹扩展数值模拟 | |
| 引用本文： | 张可成,罗广恩,李良碧.潜艇锥柱典型节点表面裂纹扩展数值模拟[J].舰船科学技术,2012,34(3):9-13,44. |
| 作者姓名： | 张可成 罗广恩 李良碧 |
| 作者单位： | 1. 江苏科技大学船舶与海洋工程学院,江苏镇江,212003 2. 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 3. 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 |
| 基金项目： | 国家自然科学基金资助项目(51109100);江苏省自然科学基金资助项目(BK2011508);江苏省船舶先进设计制造技术重点实验室开放研究基金资助课题(CJ0902);江苏科技大学船舶与海洋工程学院青年教师基金资助项目(2007CH070J) |
| 摘 要： | 锥柱结合处是潜艇结构疲劳破坏的热点区域。本文以潜艇锥柱结合壳结构典型节点为研究对象,以断裂力学为理论基础,使用APDL语言对ANSYS软件进行2次开发,分析潜艇耐压壳结构典型节点表面裂纹在交变载荷作用下的扩展过程,并与试验结果进行对比,结果表明本方法可较好地模拟表面裂纹的疲劳扩展。 |
| 关 键 词： | 潜艇 裂纹扩展 应力强度因子 表面裂纹 |
Typical joints of submarine cone-cylinder structure surface crack propagation numerical simulation |
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| ZHANG Ke-cheng , LUO Guang-en , LI Liang-bi.Typical joints of submarine cone-cylinder structure surface crack propagation numerical simulation[J].Ship Science and Technology,2012,34(3):9-13,44. | |
| Authors: | ZHANG Ke-cheng LUO Guang-en LI Liang-bi |
| Institution: | 1,3(1.School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang212003,China; 2.China Ship Scientific Research Center,Wuxi214082,China; 3.Jiangsu Modern Shipbuilding Technology.,LTD,Zhenjiang212003,China) |
| Abstract: | Cone-cylinder parts is the hot spots of fatigue damage of submarine.In this paper,typical joints at the cone-cylinder parts of submarine are chosen as the research object.Basing on the theory of fracture mechanics,the typical welding joints of cone-cylinder hull structure is studied by ansys software developed in APDL language.The propagation process of the surface crack under alternating loads are simulated.Comparing with the experimental results,the result shows that this method can simulate the fatigue expansion of the surface crack excellently. |
| Keywords: | submarine crack propagation stress intensity factor surface crack |
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