Research on the quasi-static/dynamic mechanical properties and impact resistance of 3D woven composites under salt spray aging

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-04-06 DOI:10.1016/j.compositesa.2025.108923

Lulu Liu, Feng Jin, Jian Ji, Xinying Zhu, Zhihao Xie, Wei Chen

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引用次数: 0

Abstract

3D woven composites excel in the thickness direction due to their fiber structures, overcoming delamination issues and showing superior impact resistance, ideal for aerospace. Aircraft operating in marine environments are chronically exposed to high humidity and salt spray, causing corrosion-driven deterioration of mechanical properties in structural components and materials, which significantly compromises flight safety. This study conducts salt spray aging tests on 3D angle-interlock woven composites, employing dynamic mechanical analysis, infrared spectroscopy, and scanning electron microscopy to assess hygroscopic characteristics and changes in physical and chemical properties pre- and post-exposure. Subsequently, quasi-static tensile and compression tests, along with dynamic compression tests, are conducted on specimens post-salt mist exposure to evaluate changes in mechanical properties. Finally, ballistic impact tests on the aged composites elucidate the mechanisms by which salt spray aging affects their impact resistance. This study delivers critical framework for structural design and durability maintenance of 3D woven composites operating under marine service conditions.

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盐雾老化条件下三维编织复合材料的准静态/动态力学性能和抗冲击性研究

3D编织复合材料由于其纤维结构，在厚度方向上表现出色，克服了分层问题，并表现出卓越的抗冲击性，是航空航天的理想选择。在海洋环境中运行的飞机长期暴露在高湿度和盐雾中，导致结构部件和材料的机械性能腐蚀恶化，这严重影响了飞行安全。本研究对三维角互锁编织复合材料进行盐雾老化试验，采用动态力学分析、红外光谱、扫描电镜等方法，评估其吸湿特性及暴露前后理化性能的变化。随后，对盐雾暴露后的试样进行了准静态拉伸和压缩试验以及动态压缩试验，以评估其力学性能的变化。最后，对时效复合材料进行了弹道冲击试验，阐明了盐雾时效影响复合材料抗冲击性能的机理。该研究为在海上服役条件下运行的3D编织复合材料的结构设计和耐久性维护提供了关键框架。

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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.