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Semi-analytical modeling of coating-crack-defect interactions using a combined distributed dislocation technique and numerical equivalent inclusion method

文献类型：期刊论文

作者Yang, Bozheng2; Li, Pu3; Liu, Kuanyu2; Jiang, Zhizhen2; Song, Hengxu1,4; Jin, Xiaoqing2; Borodich, Feodor M.2
刊名TRIBOLOGY INTERNATIONAL
出版日期2026-02-01
卷号214页码:17
关键词Coating Multi-branched crack Distributed dislocation technique (DDT) Numerical equivalent inclusion method (NEIM)
ISSN号0301-679X
DOI10.1016/j.triboint.2025.111199
通讯作者Li, Pu(pli3563@163.com) ; Jin, Xiaoqing(jinxq@cqu.edu.cn)
英文摘要Coatings play a critical role in controlling stress concentrations, mitigating crack-defect interactions, and enhancing the durability of tribological components under frictional loading. Understanding the interactions among cracks, coatings, and defects at the microscale is therefore critical for elucidating the underlying mechanisms and ensuring the design and reliability of coated materials in friction-related applications. This studyudy investigates the effect of coating on the interaction between a multi-branched crack and arbitrarily shaped inhomogeneities or voids. The governing equations for coatings, inhomogeneities, voids and cracks are fully coupled into a unified model. Furthermore, the stress solutions for the crack with multiple branches at any angle and length are innovatively derived in the half plane with the help of the Distributed Dislocation Technique (DDT). Based on the numerical equivalent inclusion method (NEIM) and Fast Fourier Transform (FFT) algorithms, a semi-analytical scheme with a multi-stage iterative procedure is presented to obtain the final stress solutions and the stress intensity factors (SIFs). Benchmark examples compared with finite element method (FEM) results validate the numerical implementation. The proposed semi-analytical method overcomes limitations related to crack branching, inhomogeneity shapes, and mesh complexity, offering enhanced flexibility and computational efficiency.
WOS关键词CIRCULAR INCLUSION ; MULTIPLE CRACKS ; ELASTIC FIELD ; CONTACT ; PROPAGATION
资助项目National Natural Science Foundation of China[52205192] ; National Natural Science Foundation of China[52575201] ; National Natural Science Foundation of China[12502114] ; Opening Fund of State Key Laboratory of Nonlinear Mechanics (Institute of Mechanics, Chinese Academy of Sciences, China) ; Chinese Academy of Sciences[XDB0620101]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001578553400001
资助机构National Natural Science Foundation of China ; Opening Fund of State Key Laboratory of Nonlinear Mechanics (Institute of Mechanics, Chinese Academy of Sciences, China) ; Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/104080]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Li, Pu; Jin, Xiaoqing
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
2.Chongqing Univ, Coll Aerosp Engn, Chongqing 400030, Peoples R China
3.Sichuan Univ, Robot Satellite Key Lab Sichuan Prov, Key Lab Adv Spatial Mech & Intelligent Spacecraft, Sch Aeronaut & Astronaut,Minist Educ, Chengdu 610065, Peoples R China
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Bozheng,Li, Pu,Liu, Kuanyu,et al. Semi-analytical modeling of coating-crack-defect interactions using a combined distributed dislocation technique and numerical equivalent inclusion method[J]. TRIBOLOGY INTERNATIONAL,2026,214:17.
APA Yang, Bozheng.,Li, Pu.,Liu, Kuanyu.,Jiang, Zhizhen.,Song, Hengxu.,...&Borodich, Feodor M..(2026).Semi-analytical modeling of coating-crack-defect interactions using a combined distributed dislocation technique and numerical equivalent inclusion method.TRIBOLOGY INTERNATIONAL,214,17.
MLA Yang, Bozheng,et al."Semi-analytical modeling of coating-crack-defect interactions using a combined distributed dislocation technique and numerical equivalent inclusion method".TRIBOLOGY INTERNATIONAL 214(2026):17.

入库方式： OAI收割

来源：力学研究所

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