利用卡雷拉统一公式和内聚区模型对功能分级材料进行分层分析

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-04-04 DOI:10.1016/j.compstruct.2025.119147

M. Nasseer A. Mohammed , Riccardo Augello , Munise Didem Demirbas , Erasmo Carrera

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引用次数: 0

摘要

本文利用Carrera统一公式（CUF）和内聚区模型（CZM）研究了功能梯度材料（fgm）的分层行为。fgm具有空间变化的材料特性，越来越多地用于高级工程应用，但容易发生分层。采用CUF和CZM相结合的方法建立了数值模型。在本研究中，悬臂FGM梁受到来自其自由端相反的力，并分析了分层。在这里，正确地处理了分层过程，并利用CZM断裂力学，计算了受张力分离规律支配的内聚元素的裂纹萌生、扩展和分支。最后，考虑了不同的成分梯度指数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Delamination analysis of Functionally Graded Materials using Carrera Unified Formulation and Cohesive Zone Model

This paper investigates the delamination behavior of Functionally Graded Materials (FGMs) using Carrera Unified Formulation (CUF) and Cohesive Zone Model (CZM). Characterized by spatially varying material properties, FGMs are increasingly used in advanced engineering applications but are prone to delamination. The numerical model is developed by using a combination of CUF and CZM. In this study, a cantilever FGM beam was subjected to opposing forces from its free end and analyzed for delamination. Here, the delamination process is correctly addressed, and using the fracture mechanics of CZM, the crack initiation, propagation, and branching along the cohesive elements governed by the tension-separation law were also calculated. Finally, different compositional gradient exponents are accounted.

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.