| 基于焊接应力场的高强钢疲劳寿命研究 |
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| 引用本文： | 王庆丰,;唐昌德,;郝寿军,;李永正.基于焊接应力场的高强钢疲劳寿命研究[J].江苏科技大学学报(社会科学版),2014(3):211-215. |
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| 作者姓名： | 王庆丰 ;唐昌德 ;郝寿军 ;李永正 |
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| 作者单位： | [1]江苏科技大学船舶与海洋工程学院,镇江212003; [2]江苏韩通船舶重工有限公司,江苏南通226000 |
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| 基金项目： | 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项目（CJ1202） |
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| 摘 要： | 运用 ANSYS APDL 语言编程，对船用高强钢 T 型试件的焊接过程进行了模拟，得到了其焊接残余应力场的分布规律。以预应力的方式将其应力场施加到结构的疲劳寿命计算过程中，得到了结构在焊接残余应力影响下的疲劳寿命。并通过与实验数据进行对比，较为直观地反映焊接残余应力对疲劳寿命的影响。
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| 关 键 词： | 船用高强钢 焊接残余应力 疲劳寿命 |
Analysis of high-strength steel fatigue based on welding stress field |
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| Institution: | Wang Qingfeng, Tang Changde, Hao Shoujun, Li Yongzheng ( 1. School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China) (2. Jiangsu Hantong Ship Heavy Industry, Nantong Jiangsu 226000, China) |
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| Abstract: | By using ANSYS APDL language,we simulated the welding process of T-joint test specimen made of ship high-strength steel. After obtaining the distribution of welding residual stress,it was used as pre-stress dur-ing the fatigue calculation. By comparing the FEM and test results,the influence of residual stress on fatigue life was visually reflected. |
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| Keywords: | ship high-strength steel welding residual stress fatigue life |
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