Enhancing damage resistance in tubular triaxial hybrid braided composites: Innovative production and tensile modulus prediction with damage analysis,Polymer Composites

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Enhancing damage resistance in tubular triaxial hybrid braided composites: Innovative production and tensile modulus prediction with damage analysis
Polymer Composites ( IF 4.8 ) Pub Date : 2024-03-23 , DOI: 10.1002/pc.28328
Ghazal Ghamkhar _{1,

2} , Majid Safar Johari ₂ , Mahdi Bodaghi ₁

Affiliation

Braided composite structures, characterized by their inherent brittleness, necessitate precise damage prediction and prevention to ensure structural integrity/reliability. This study introduces an innovative method for enhancing damage resistance in tubular triaxial hybrid braided composites. These composites employ Epoxy resin as the matrix, with polyester serving as the bias yarn, and glass and basalt as the axial yarns, woven at varying braiding angles. Tensile tests reveal a compelling trend: a reduction in the braiding angle correlates with an increase in the failure load, indicative of quasi-ductile behavior. A model is also derived for predicting tensile elastic modulus, which demonstrates a strong correlation with experimental results. Furthermore, finite element simulations are utilized to analyze damage within the triaxial hybrid braided composite specimens, providing empirical confirmation of progressive damage occurrence. This research offers a promising avenue for designing/manufacturing advanced composite materials with superior damage-resistance holding immense potential across a spectrum of engineering applications.

中文翻译：

增强管状三轴混合编织复合材料的抗损伤能力：通过损伤分析进行创新生产和拉伸模量预测

编织复合材料结构具有固有的脆性，因此需要精确的损伤预测和预防，以确保结构的完整性/可靠性。本研究介绍了一种增强管状三轴混合编织复合材料抗损伤能力的创新方法。这些复合材料采用环氧树脂作为基体，聚酯作为斜纱，玻璃和玄武岩作为轴向纱线，以不同的编织角度编织。拉伸测试揭示了一个引人注目的趋势：编织角的减小与失效载荷的增加相关，表明准延性行为。还导出了用于预测拉伸弹性模量的模型，该模型与实验结果具有很强的相关性。此外，利用有限元模拟来分析三轴混合编织复合材料样本内的损伤，提供渐进损伤发生的经验确认。这项研究为设计/制造具有卓越抗损伤能力的先进复合材料提供了一条有前途的途径，在一系列工程应用中具有巨大的潜力。

更新日期：2024-03-23

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