高强钢氢致滞后断裂滞后时间的有限元预测

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (07): 1079-1083.

高强钢氢致滞后断裂滞后时间的有限元预测

白小敏，巩建鸣，王艳飞

(南京工业大学机械与动力工程学院，江苏南京 211816)

收稿日期:2011-06-09 出版日期:2012-07-30 发布日期:2012-07-30

Prediction of Hydrogen Induced Delayed Fracture Initiation Time of High Strength Steel Using Cohesive Zone Modeling

BAI Xiao-Min, GONG Jian-Ming, WANG Yan-Fei

(College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 211816, China)

Received:2011-06-09 Online:2012-07-30 Published:2012-07-30

摘要/Abstract

摘要： 基于氢相关的内聚力模型，开发了顺次耦合的氢致滞后断裂有限元计算程序，预测了预含氢AISI4135高强钢圆棒缺口试样在常载荷拉伸条件下的滞后断裂时间，并考察了试样初始平均含氢水平对滞后断裂的影响.结果表明，氢相关的内聚力模型可有效预测氢致滞后断裂的断裂时间，有限元预测结果和相关报道较为一致.氢致滞后断裂存在氢临界值，当缺口尖端应力集中区聚集的氢浓度达到临界时裂纹开始形核，此临界值和结构的初始含氢量无关.

关键词: 氢致滞后断裂, 内聚力模型, 氢脆, 高强钢

Abstract: A sequential coupling calculation method on hydrogen induced delayed fracture was developed based on cohesive zone modeling (CZM) by using finite element program-ABAQUS. Using this method, the fracture initiation time was numerically predicted for circumferentially notched round bar specimen of AISI4135 high strength steel under a constant load after electrochemically precharged. The effect of various hydrogen contents was also considered. The results show that the hydrogen dependent CZM can be used in the prediction of failure in actual structures. The predictions of the time to fracture are in good quantitative agreement with the some experimental results. The delayed fracture occurrs when a critical hydrogen concentration at the location of max hydrostatic stress is reached by diffusion. The critical hydrogen concentration is not dependent on initial hydrogen content.

Key words: hydrogen induced delayed fracture, cohesive zone modeling, hydrogen embrittlement, high strength steel

中图分类号:

TG 457

白小敏, 巩建鸣, 王艳飞. 高强钢氢致滞后断裂滞后时间的有限元预测 [J]. 上海交通大学学报（自然版）, 2012, 46(07): 1079-1083.

BAI Xiao-Min, GONG Jian-Ming, WANG Yan-Fei. Prediction of Hydrogen Induced Delayed Fracture Initiation Time of High Strength Steel Using Cohesive Zone Modeling[J]. Journal of Shanghai Jiaotong University, 2012, 46(07): 1079-1083.

参考文献

［1］

曾荣昌，韩恩厚．材料的腐蚀与防护［M］．北京：化学工业出版社，2006.
［2］姚寅,黄再兴．基于原子内聚力与表面能等效的内聚裂纹模型［J］.航空学报，2010, 31(9): 17961801.
YAO Yin, HUANG Zaixin. A surfaceenergy equivalent cohesive crack model based on atomic cohesive force ［J］. Acta Aeronautica ET Astronautic Sinica，2010, 31(9): 17961801.
［3］Serebrinsky S, Carter E A, Ortiz M. A quantummechanically informed continuum model of hydrogen em

brittlement ［J］. J Mechanics and Physics of Solids, 2004, 52(10): 24032430.

［4］Liang Y, Sofronis P. Toward a phenomenological description of hydrogen induced decohesion at particle/matrix interfaces ［J］. J Mechanics and Physics of Solids, 2003, 51(8): 15091531.
［5］Olden V, Thaulow C, Johnsen R, et al. Application of hydrogen influenced cohesive laws in the prediction of hydrogen induced stress cracking in 25%Cr duplex stainless steel ［J］. Engineering Fracture Mechanics, 2008, 75(8): 23332351.
［6］Olden V, Thaulow C, Johnsen R, et al. Cohesive zone modeling of hydrogeninduced stress cracking in 25% Cr duplex stainless steel ［J］. Scripta Materialia, 2007, 57(7): 615618.
［7］Olden V, Thaulow C, Johnsen R, et al. Influence of hydrogen from cathodic protection on the fracture susceptibility of 25%Cr duplex stainless steelConstant load SENT testing and FEmodelling using hydrogen influenced cohesive zone elements ［J］. Engineering Fracture Mechanics, 2009, 76(7): 827844.
［8］Wang M Q, Akiyama E, Tsuzaki K. Determination of the critical hydrogen concentration for delayed fracture of high strength steel by constant load test and numerical calculation ［J］. Corrosion Science, 2006, 48(8): 21892202.
［9］Dugdale D S. Yielding of steel sheets containing slits ［J］. Mechanics and Physics of Solids, 1960, 8: 100104.
［10］Barrenblatt G I. The mathematical theory of equilibrium of cracks in brittle fracture ［J］. Advances in Applied Mechanics, 1962, 7: 55129.
［11］Troiano A R, Hehemann R F. Hydrogen embrittlement and stress corrosion cracking in sour environments［C］∥Current Solutions to Hydrogen Problems in Steels, Proc of the 1st International Conf. Washington, DC, USA : ASM, 1982:299303.
［12］Jiang D E, Carter E A. First principles assessment of ideal fracture energies of materials with mobile impurities: Implications for hydrogen embrittlement of metals ［J］. Acta Materialia, 2004, 52(16):48014807.
［13］Van der Ven A, Ceder G. Impurity induced van der Waals transition during decohesion ［J］. Physical Review B, 2003, 67(6): 060101.
［14］Williams D P, Nelson H G. Embrittlement of 4130 steel by lowpressure gaseous hydrogen ［J］. Metallurgical Transactions, 1970(1): 6368.

[1]	王娟, 杨明旺, 郑茂尧, 刘凌云, 赵立君. 高强钢在大型半潜式平台组块建造中的应用[J]. 海洋工程装备与技术, 2022, 9(1): 27-31.
[2]	张宇, 刘海亭, 翁琳, 沈耀. 环形缺口小冲杆试样结合内聚力模型提取断裂韧性参数[J]. 上海交通大学学报, 2021, 55(7): 850-857.
[3]	武念铎1，强旭红1，刘晓2，罗永峰1. 考虑螺栓抗弯刚度的T型连接初始刚度计算方法[J]. 上海交通大学学报（自然版）, 2018, 52(12): 1571-1579.
[4]	段红燕,王智明,桑元成. III型裂纹裂尖应力场的内聚力模型[J]. 上海交通大学学报（自然版）, 2017, 51(1): 113-.
[5]	陈玉喜1，刘亮2，张华军2，陈华斌1，陈善本1. 焊接热输入对低合金高强钢焊缝组织和韧性的影响[J]. 上海交通大学学报（自然版）, 2015, 49(03): 306-309.
[6]	王艳飞，巩建鸣. 高压氢气对金属材料断裂韧性的影响[J]. 上海交通大学学报（自然版）, 2014, 48(05): 610-613.
[7]	牛建辉，朱平. 高强钢闭口帽形结构准静态轴向压溃实验[J]. 上海交通大学学报（自然版）, 2011, 45(11): 1661-1667.
[8]	郭超群，陈军，陈劼实，徐栋恺，于翔宇，白燕超. 超高强度钢薄板扭曲回弹特性的数值模拟与试验分析[J]. 上海交通大学学报（自然版）, 2010, 44(04): 468-0472.