Analysis of fracture parameters for partially electrically conducting and partially insulated crack in a homogeneous piezoelectric material

IF 5.7 1区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

International Journal of Engineering Science Pub Date : 2025-03-23 DOI:10.1016/j.ijengsci.2025.104246

Victor Adlucky , Volodymyr Loboda , Yuri Lapusta

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Abstract

A plane strain problem for a partially electrically conducting and partially insulated crack in a homogeneous piezoelectric material is considered. The electrically conducting zone is located either on both crack faces or on one of them. Remote mechanical tensile stresses orthogonal to the crack and the electric field orthogonal or parallel to the crack are applied. The appearance of contact zones between the crack faces is supposed. The computational model is based on the finite element method. Determination of the energy release rates at the crack tips is realized using the virtual crack closure technique. The results of solving a number of test problems are presented. They demonstrate the satisfactory accuracy of the model. The impact on the fracture parameters of such factors as the length and location of conducting zone, the direction of the electric field, and the poling direction of the piezoelectric material is analyzed.

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均质压电材料部分导电部分绝缘裂纹断裂参数分析

研究了均匀压电材料中部分导电部分绝缘裂纹的平面应变问题。导电区要么位于两个裂纹面上，要么位于其中一个裂纹面上。施加与裂纹正交的远端机械拉伸应力和与裂纹正交或平行的电场。假定裂纹面之间存在接触区。计算模型基于有限元法。利用虚拟裂纹闭合技术实现了裂纹尖端能量释放率的测定。给出了解决若干测试问题的结果。他们证明了该模型令人满意的准确性。分析了导电区的长度和位置、电场方向、压电材料的极化方向等因素对断裂参数的影响。

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来源期刊

International Journal of Engineering Science 工程技术-工程：综合

CiteScore

11.80

自引率

16.70%

发文量

审稿时长

45 days

期刊介绍： The International Journal of Engineering Science is not limited to a specific aspect of science and engineering but is instead devoted to a wide range of subfields in the engineering sciences. While it encourages a broad spectrum of contribution in the engineering sciences, its core interest lies in issues concerning material modeling and response. Articles of interdisciplinary nature are particularly welcome. The primary goal of the new editors is to maintain high quality of publications. There will be a commitment to expediting the time taken for the publication of the papers. The articles that are sent for reviews will have names of the authors deleted with a view towards enhancing the objectivity and fairness of the review process. Articles that are devoted to the purely mathematical aspects without a discussion of the physical implications of the results or the consideration of specific examples are discouraged. Articles concerning material science should not be limited merely to a description and recording of observations but should contain theoretical or quantitative discussion of the results.