A New Method for Adhesion Strength Assessment of Indented Polymer Coatings

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Physical Mesomechanics Pub Date : 2023-10-12 DOI:10.1134/S1029959923050041

S. V. Smirnov, M. V. Myasnikova, A. V. Pestov, D. A. Konovalov, E. O. Smirnova

{"title":"A New Method for Adhesion Strength Assessment of Indented Polymer Coatings","authors":"S. V. Smirnov, M. V. Myasnikova, A. V. Pestov, D. A. Konovalov, E. O. Smirnova","doi":"10.1134/S1029959923050041","DOIUrl":null,"url":null,"abstract":"<p>The paper proposes a new method for adhesion strength assessment of polymer coatings which is based on Rockwell indentation with experimental data processing via finite element simulation in terms of fracture mechanics (cohesive zone model, CZM). With the example of a titanium-alkoxide epoxy composition deposited on low-carbon steel, it is shown that when the Rockwell indenter penetrates perpendicular to the coating surface, circular buckling delamination around its indent occurs due to adhesive bond rupture by radial shear with extrusion of the coating material from beneath the indenter. The parameter controlled in the simulation is the width of coating delamination zones formed in indentation experiments at a constant indentation depth. The conditions of adhesive contact are specified using the CZM bilinear law, which describes the relation between the tangential adhesive stress and the adhesive bond elongation under shear in the contact plane of interacting surfaces. The criterion of quantitative adhesion strength assessment is the ultimate specific surface energy of adhesive failure. The simulation gives an optimum value of the ultimate specific surface energy of adhesive failure of the coating at CZM parameters that provide the best convergence of the numerical and experimental data.</p>","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"26 5","pages":"514 - 522"},"PeriodicalIF":1.8000,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Mesomechanics","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1029959923050041","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}

引用次数: 0

Abstract

The paper proposes a new method for adhesion strength assessment of polymer coatings which is based on Rockwell indentation with experimental data processing via finite element simulation in terms of fracture mechanics (cohesive zone model, CZM). With the example of a titanium-alkoxide epoxy composition deposited on low-carbon steel, it is shown that when the Rockwell indenter penetrates perpendicular to the coating surface, circular buckling delamination around its indent occurs due to adhesive bond rupture by radial shear with extrusion of the coating material from beneath the indenter. The parameter controlled in the simulation is the width of coating delamination zones formed in indentation experiments at a constant indentation depth. The conditions of adhesive contact are specified using the CZM bilinear law, which describes the relation between the tangential adhesive stress and the adhesive bond elongation under shear in the contact plane of interacting surfaces. The criterion of quantitative adhesion strength assessment is the ultimate specific surface energy of adhesive failure. The simulation gives an optimum value of the ultimate specific surface energy of adhesive failure of the coating at CZM parameters that provide the best convergence of the numerical and experimental data.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

一种新的聚合物压痕涂层粘合强度评估方法

本文提出了一种新的聚合物涂层粘合强度评估方法，该方法基于洛氏压痕，通过断裂力学的有限元模拟对实验数据进行处理（内聚区模型，CZM）。以沉积在低碳钢上的烷氧基钛环氧组合物为例，研究表明，当洛氏压头垂直于涂层表面穿透时，由于径向剪切导致的粘合剂断裂以及涂层材料从压头下方挤出，导致压痕周围发生圆形屈曲分层。模拟中控制的参数是在恒定压痕深度下压痕实验中形成的涂层分层区的宽度。使用CZM双线性定律指定了粘合接触的条件，该定律描述了在相互作用表面的接触平面中剪切下切向粘合应力和粘合伸长率之间的关系。定量粘合强度评估的标准是粘合失效的最终比表面能。模拟给出了在CZM参数下涂层粘合失效的极限比表面能的最佳值，该参数提供了数值和实验数据的最佳收敛性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Physical Mesomechanics Materials Science-General Materials Science

CiteScore

3.50

自引率

18.80%

发文量

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related in the physical mesomechanics and also solid-state physics, mechanics, materials science, geodynamics, non-destructive testing and in a large number of other fields where the physical mesomechanics may be used extensively. Papers dealing with the processing, characterization, structure and physical properties and computational aspects of the mesomechanics of heterogeneous media, fracture mesomechanics, physical mesomechanics of materials, mesomechanics applications for geodynamics and tectonics, mesomechanics of smart materials and materials for electronics, non-destructive testing are viewed as suitable for publication.