Mechanical model for two-dimensional ultrasonic-assisted grinding of unidirectional Cf/SiC composites

IF 7.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Mechanical Sciences Pub Date : 2025-05-31 DOI:10.1016/j.ijmecsci.2025.110419

Zhenyan Duan , Tao Chen , Yuhao Suo , Haohui Shi , Junpeng Ye

{"title":"Mechanical model for two-dimensional ultrasonic-assisted grinding of unidirectional Cf/SiC composites","authors":"Zhenyan Duan , Tao Chen , Yuhao Suo , Haohui Shi , Junpeng Ye","doi":"10.1016/j.ijmecsci.2025.110419","DOIUrl":null,"url":null,"abstract":"<div><div>Two-dimensional ultrasonic-assisted grinding (2D-UAG) is a highly efficient process for brittle materials. Compared to conventional grinding (CG) and one-dimensional ultrasonic-assisted grinding (1D-UAG), the surface quality of workpieces can be further improved. Unidirectional carbon-fiber-reinforced silicon carbide composites (UD-C<sub>f</sub>/SiCs) have a wide range of applications in engineering. However, the existing mechanical models developed for the machining of C<sub>f</sub>/SiCs have various limitations, especially the inability to reflect the transient force information. In this work, a dynamic force prediction model is developed for the 2D-UAG of the C<sub>f</sub>/SiCs. In the modelling process, the micro-morphology of the grinding wheel was first characterized. Secondly, the cutting force of a single grit was obtained based on the fiber fracture theory and the energy conservation law. Finally, considering the grain movement in the 2D-UAG, a novel force decomposition and synthesis algorithm was used to calculate the total force. The validation results showed that the maximum predicted error of the model for the resultant force <em>F<sub>s</sub></em> is 14.86 % and the average value is 7.36 %. The predicted boundary values and mean values of the fractional forces <em>F</em><sub>n</sub> and <em>F</em><sub>t</sub> are also in good agreement with the experimental values. In addition, the fibers have a large influence on the fluctuation of the force value due to the suppression of transverse crack extension. The order of influence is Perpendicular > Transverse > Longitudinal.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"299 ","pages":"Article 110419"},"PeriodicalIF":7.1000,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mechanical Sciences","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0020740325005041","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Two-dimensional ultrasonic-assisted grinding (2D-UAG) is a highly efficient process for brittle materials. Compared to conventional grinding (CG) and one-dimensional ultrasonic-assisted grinding (1D-UAG), the surface quality of workpieces can be further improved. Unidirectional carbon-fiber-reinforced silicon carbide composites (UD-C_f/SiCs) have a wide range of applications in engineering. However, the existing mechanical models developed for the machining of C_f/SiCs have various limitations, especially the inability to reflect the transient force information. In this work, a dynamic force prediction model is developed for the 2D-UAG of the C_f/SiCs. In the modelling process, the micro-morphology of the grinding wheel was first characterized. Secondly, the cutting force of a single grit was obtained based on the fiber fracture theory and the energy conservation law. Finally, considering the grain movement in the 2D-UAG, a novel force decomposition and synthesis algorithm was used to calculate the total force. The validation results showed that the maximum predicted error of the model for the resultant force F_s is 14.86 % and the average value is 7.36 %. The predicted boundary values and mean values of the fractional forces F_n and F_t are also in good agreement with the experimental values. In addition, the fibers have a large influence on the fluctuation of the force value due to the suppression of transverse crack extension. The order of influence is Perpendicular > Transverse > Longitudinal.

查看原文本刊更多论文

单向Cf/SiC复合材料二维超声辅助磨削力学模型

二维超声辅助磨削（2D-UAG）是一种高效的脆性材料磨削工艺。与常规磨削（CG）和一维超声辅助磨削（1D-UAG）相比，可以进一步提高工件的表面质量。单向碳纤维增强碳化硅复合材料（UD-Cf/ sic）具有广泛的工程应用前景。然而，现有的用于Cf/ sic加工的力学模型存在各种局限性，特别是不能反映瞬态力信息。在这项工作中，建立了Cf/ sic二维uag的动态力预测模型。在建模过程中，首先对砂轮的微观形貌进行了表征。其次，基于纤维断裂理论和能量守恒定律，得到了单个磨粒的切削力；最后，考虑颗粒在2D-UAG中的运动，采用一种新的力分解与综合算法计算总力。验证结果表明，该模型对作用力f的最大预测误差为14.86%，平均值为7.36%。分数力Fn和Ft的预测边界值和平均值也与实验值吻合较好。此外，由于纤维对横向裂纹扩展的抑制，对力值的波动有较大的影响。影响的顺序为：垂直>；横向比;纵向。

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分钟内获得全文求助全文

来源期刊

International Journal of Mechanical Sciences 工程技术-工程：机械

CiteScore

12.80

自引率

17.80%

发文量

769

审稿时长

19 days

期刊介绍： The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering. The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture). Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content. In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.