Effect of local meso-structure on mechanical variability and notch strength sensitivity in woven glass fiber polyamide composites

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-05-26 DOI:10.1016/j.compositesa.2025.109061

Mohammad Nazmus Saquib , Edwing Chaparro-Chavez , Siavash Sattar , Diego Pedrazzoli , Mingfu Zhang , Sergii G. Kravchenko , Oleksandr G. Kravchenko

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引用次数: 0

Abstract

This study investigated the variability in mechanical behavior and notch sensitivity of nylon/glass fiber woven organosheets, offering vital insights for woven thermoplastic composite material design. Combining experimental analyses and advanced computational modeling through the continuum damage mechanics (CDM) model, the study examines the tensile properties and failure mechanisms of the 2/2 twill woven organosheet. The CDM model accurately predicts unnotched tensile behavior, identifying key damage modes. Additionally, the study explores the hole size effect in open hole tension (OHT) configurations, utilizing both experimental and CDM results to calibrate the analytical modified point stress criterion (MPSC) model. The analytical notch sensitivity curves derived from both experimental and computational methods closely align, demonstrating the viability of virtual testing for OHT characterization. Furthermore, the research investigates the effect of local meso-structure of 2/2 twill weave on strength variability.

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局部细观结构对机织玻璃纤维聚酰胺复合材料力学变异性和缺口强度敏感性的影响

本研究研究了尼龙/玻璃纤维编织有机片的力学行为和缺口敏感性的变化，为编织热塑性复合材料的设计提供了重要的见解。结合实验分析和先进的计算模型，通过连续损伤力学（CDM）模型，研究了2/2斜纹布有机薄片的拉伸性能和破坏机制。CDM模型准确预测无缺口拉伸行为，识别关键损伤模式。此外，该研究还探讨了裸眼张力（OHT）配置下的井眼尺寸效应，利用实验和CDM结果来校准分析修正点应力准则（MPSC）模型。由实验和计算方法得出的分析缺口灵敏度曲线非常接近，证明了OHT表征的虚拟测试的可行性。此外，研究了2/2斜纹织物局部细观结构对强度变异性的影响。

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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.