Analytical modeling for four-point asymmetric end-notched flexure delamination test of composite laminates considering interlaminar friction

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-02-25 DOI:10.1016/j.compositesa.2025.108824

Kaixin Xia , Fengrui Liu , Yu Gong , Xinxin Qi , Linjuan Wang , Libin Zhao , Ning Hu

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引用次数: 0

Abstract

The four-point asymmetric end-notched flexure (4AENF) test under shear loading often involves a mode I component, making it a representative mixed-mode I/II delamination problem. The 4AENF configuration reflects the general delamination behavior in defective laminates, emphasizing the need to characterize interlaminar fracture toughness. Despite its importance, research on 4AENF is limited, and existing models overlook interlaminar friction. This study develops a theoretical model based on Timoshenko beam theory and a two-point friction assumption, enabling analytical calculation of total strain energy release rate (SERR) for any 4AENF configuration, explicitly considering interlaminar friction. Experimental tests and finite element method (FEM) analyses validate the model, using unidirectional (UD) symmetric, UD asymmetric, and multidirectional (MD) asymmetric laminates. Theoretical predictions, experimental results, and FEM analyses are compared, confirming the model’s applicability and highlighting the effects of interlaminar friction.

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.