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1.贵州大学 机械工程学院,贵阳 550025
2.贵州大学 省部共建公共大数据国家重点实验室,贵阳 550025
卫少东,男,1995年生,陕西宝鸡人,硕士研究生;主要研究方向为近场动力学理论及应用;E-mail:1737445848@qq.com。
钱松荣(通信作者),女,1972年生,贵州贵阳人,教授;主要研究方向为近场动力学理论及应用、人工智能;E-mail:qiansongrong@163.com 。
收稿日期:2023-07-17,
修回日期:2023-10-14,
纸质出版日期:2025-04-15
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卫少东,钱松荣,周诗云,等. 基于近场动力学理论的腐蚀疲劳裂纹扩展数值模拟[J]. 机械强度,2025,47(4):70-78.
WEI Shaodong,QIAN Songrong,ZHOU Shiyun,et al. Numerical simulation of corrosion fatigue crack expansion based on peridynamics theory[J]. Journal of Mechanical Strength,2025,47(4):70-78.
卫少东,钱松荣,周诗云,等. 基于近场动力学理论的腐蚀疲劳裂纹扩展数值模拟[J]. 机械强度,2025,47(4):70-78. DOI: 10.16579/j.issn.1001.9669.2025.04.009.
WEI Shaodong,QIAN Songrong,ZHOU Shiyun,et al. Numerical simulation of corrosion fatigue crack expansion based on peridynamics theory[J]. Journal of Mechanical Strength,2025,47(4):70-78. DOI: 10.16579/j.issn.1001.9669.2025.04.009.
为了模拟腐蚀疲劳的裂纹扩展,提出了一种近场动力学腐蚀-疲劳断裂耦合模型,并将该模型应用于A7N01P-T4铝合金的裂纹扩展模拟分析。在该模型中,用氢和应力的交互作用体现腐蚀中阳极溶解和氢致开裂两种机制之间的协同作用,在量化材料因腐蚀产生断裂行为时,将腐蚀求解步骤和力学求解步骤进行耦合。由于氢使材料的塑性降低并发生脆性断裂,在研究中采用适合模拟各向同性脆性破坏的键型近场动力学理论,并使用准脆性材料的本构力函数来描述近场力与伸长率之间的关系,该函数包含线性和非线性力学行为。通过将仿真结果与A7N01P-T4铝合金在3.5%NaCl溶液中的试验结果进行比较,发现两者之间吻合较好,从而验证了该模型的可行性。
In order to simulate the crack propagation by corrosion fatigue
a coupled peridynamics corrosion-fatigue fracture model was proposed and applied to the simulation and analysis of crack propagation in A7N01P-T4 aluminum alloy. In this model
the interaction of hydrogen and stress was used to reflect the synergy between the two mechanisms of anodic dissolution and hydrogen cracking in corrosion
and the corrosion solution step and the mechanical solution step were coupled when quantifying the fracture behavior of the material due to corrosion. Since hydrogen reduces the plasticity of the material and brittle fracture occurs
a bonded peridynamics theory suitable for simulating isotropic brittle damage was used
and the relation between near-field force and elongation was described using an intrinsic force function for quasi-brittle materials that incorporates both linear and nonlinear mechanical behavior. The feasibility of the model is verified by comparing the simulation results with the test results of A7N01P-T4 aluminum alloy in 3.5% NaCl solution
and it is found that the results are in good agreement between them.
ZHANG Z W , WANG J C , ZHANG J H , et al . Modeling of the mechano-electrochemical effect at corrosion defect with varied inclinations on oil/gas pipelines [J]. Petroleum Science , 2021 , 18 ( 5 ): 1520 - 1529 .
SUN W , LIU G C , WANG L D , et al . An arbitrary Lagrangian-Eulerian model for studying the influences of corrosion product deposition on bimetallic corrosion [J]. Journal of Solid State Electrochemistry , 2013 , 17 ( 3 ): 829 - 840 .
DEKKER R , DER MEER F P , MALJAARS J , et al . A level set model for stress‐dependent corrosion pit propagation [J]. International Journal for Numerical Methods in Engineering , 2021 , 122 ( 8 ): 2057 - 2074 .
LIN C , RUAN H H , SHI S Q . Phase field study of mechanico-electrochemical corrosion [J]. Electrochimica Acta , 2019 , 310 : 240 - 255 .
CUI C J , MA R J , CHEN A R , et al . Experimental study and 3D cellular automata simulation of corrosion pits on Q345 steel surface under salt-spray environment [J]. Corrosion Science , 2019 , 154 : 80 - 89 .
DONG Y J , SU C , QIAO P Z . An improved mesoscale damage model for quasi-brittle fracture analysis of concrete with ordinary state-based peridynamics [J]. Theoretical & Applied Fracture Mechanics , 2021 , 112 : 102829 .
SILLING S A . Reformulation of elasticity theory for discontinuities and long-range forces [J]. Journal of the Mechanics and Physics of Solids , 2000 , 48 ( 1 ): 175 - 209 .
CHEN Z G , BOBARU F . Peridynamic modeling of pitting corrosion damage [J] . Journal of the Mechanics and Physics of Solids , 2015 , 78 : 352 - 381 .
DE MEO D , RUSSO L , OTERKUS E . Modeling of the onset,propagation,and interaction of multiple cracks generated from corrosion pits by using peridynamics [J]. Journal of Engineering Materials & Technology , 2017 , 139 ( 4 ): 041001 .
SHOJAEI A , HERMANN A , CYRON C J , et al . A hybrid meshfree discretization to improve the numerical performance of peridynamic models [J]. Computer Methods in Applied Mechanics & Engineering , 2022 , 391 : 114544 .
RAN X , QIAN S R , ZHOU J , et al . Crack propagation analysis of hydrogen embrittlement based on peridynamics [J]. International Journal of Hydrogen Energy , 2022 , 47 ( 14 ): 9045 - 9057 .
YU K , XIN X J , LEASE K B . A new adaptive integration method for the peridynamic theory [J]. Modelling and Simulation In Materials Science and Engineering , 2011 , 19 ( 4 ): 045003 .
ROKKAM S , GUNZBURGER M , BROTHERS M , et al . A nonlocal peridynamics modeling approach for corrosion damage and crack propagation [J]. Theoretical & Applied Fracture Mechanics , 2019 , 101 : 373 - 387 .
ZHANG G F , LE Q , LOGHIN A , et al . Validation of a peridynamic model for fatigue cracking [J]. Engineering Fracture Mechanics , 2016 , 162 : 76 - 94 .
ZHANG H , QIAO P Z . A state-based peridynamic model for quantitative fracture analysis [J]. International Journal of Fracture , 2018 , 211 ( 1/2 ): 217 - 235 .
KARPENKO O , OTERKUS S , OTERKUS E . Titanium alloy corrosion fatigue crack growth rates prediction:peridynamics based numerical approach [J]. International Journal of Fatigue , 2022 , 162 : 107023 .
BOBARU F , DUANGPANYA M . A peridynamic formulation for transient heat conduction in bodies with evolving discontinuities [J]. Journal of Computational Physics , 2012 , 231 ( 7 ): 2764 - 2785 .
LIU M , LUO S J , SHEN Y , et al . Corrosion fatigue crack propagation behavior of S135 high-strength drill pipe steel in H 2 S environment [J]. Engineering Failure Analysis , 2019 , 97 : 493 - 505 .
SHEN L , CHEN H , XU L D , et al . Stress corrosion cracking and corrosion fatigue cracking behavior of A7N01P-T4 aluminum alloy [J]. Materials and Corrosion , 2018 , 69 ( 2 ): 207 - 214 .
SILLING S A , ASKARI E . A meshfree method based on the peridynamic model of solid mechanics [J]. Computers & Structures , 2005 , 83 ( 17/18 ): 1526 - 1535 .
MAI W , SOGHRATI S . New phase field model for simulating galvanic and pitting corrosion processes [J]. Electrochimica Acta , 2018 , 260 : 290 - 304 .
ZHAO H , LI M J , WANG X D , et al . Intergranular corrosion effect on fatigue behavior of dissimilar 6005A-5083 aluminum alloys weld joints [J]. Materials and Corrosion , 2022 , 73 ( 9 ): 1505 - 1518 .
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