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机械固定非卷曲织物复合材料的几何和环境效应的实验评估

Experimental Evaluation of Geometric and Environmental Effects on Mechanically Fastened Non-Crimp Fabric Composites.

作者信息

Kim Dong-Uk, Jang Ho-Yun, Seo Hyoung-Seock

机构信息

Maritime, DNV Korea Ltd., Geoje 53261, Republic of Korea.

Green-Ship Research Center, Research Institute of Medium & Small Shipbuilding, Busan 46757, Republic of Korea.

出版信息

Polymers (Basel). 2024 Sep 28;16(19):2744. doi: 10.3390/polym16192744.

DOI:10.3390/polym16192744
PMID:39408455
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11479189/
Abstract

Corresponding to marine environmental regulations is important in shipbuilding and marine industries. The application of lightweight composite materials on ships is an effective approach to reducing the emission of greenhouse gases. The mechanical fastening method is a good candidate to assemble composites and conventional metals. The joint geometric and environmental effects are two important factors in mechanically fastened ship and marine structures. In this study, we evaluated the W/D (hole diameter to width ratio) and environmental effects on the bearing strength and failure mode of a mechanically fastened non-crimp fabric (NCF) composite material. To consider the effect of joint geometry, wherein hole diameters of 5, 6, 8, and 10 mm were machined. Further, by selecting three environmental conditions (UV, saltwater and low temperature), we evaluated environmental effects on bearing strength and failure modes of NCF composite specimens. The bearing strength increased as W/D decreased, and the bearing strength of the specimen exposed to low temperature and UV environments increased, while that of the specimen exposed to saltwater remained the same. From the failure mode analysis, the specimen that was exposed to salt fog showed the same failure mode as the unaged specimen. It was observed that the changes in the transition section and new failure mode in the xenon arc and low-temperature specimens.

摘要

符合海洋环境法规在造船和海洋工业中很重要。在船舶上应用轻质复合材料是减少温室气体排放的有效途径。机械紧固方法是组装复合材料和传统金属的理想选择。接头几何形状和环境影响是机械紧固船舶和海洋结构中的两个重要因素。在本研究中，我们评估了W/D（孔径与宽度比）和环境对机械紧固非卷曲织物（NCF）复合材料的承载强度和失效模式的影响。为考虑接头几何形状的影响，加工了5、6、8和10毫米的孔径。此外，通过选择三种环境条件（紫外线、盐水和低温），我们评估了环境对NCF复合材料试样承载强度和失效模式的影响。随着W/D减小，承载强度增加，暴露于低温和紫外线环境下的试样的承载强度增加，而暴露于盐水中的试样的承载强度保持不变。从失效模式分析来看，暴露于盐雾中的试样与未老化试样具有相同的失效模式。观察到氙弧灯和低温试样的过渡区变化和新的失效模式。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/25d5ae7f412b/polymers-16-02744-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/9eab89df07e4/polymers-16-02744-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/288a90409c07/polymers-16-02744-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/f80a8697ec03/polymers-16-02744-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/e7dcdccfbc6f/polymers-16-02744-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/56a73cc97607/polymers-16-02744-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/25d5ae7f412b/polymers-16-02744-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/9eab89df07e4/polymers-16-02744-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/02139abdd14f/polymers-16-02744-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/8d796d6b78ed/polymers-16-02744-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/d3f331f1727e/polymers-16-02744-g004.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/288a90409c07/polymers-16-02744-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/f80a8697ec03/polymers-16-02744-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/e7dcdccfbc6f/polymers-16-02744-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/56a73cc97607/polymers-16-02744-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/d67d785244bd/polymers-16-02744-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/47bdec43bc91/polymers-16-02744-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/d7208a53ea4d/polymers-16-02744-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d74/11479189/25d5ae7f412b/polymers-16-02744-g013.jpg

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本文引用的文献

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Pinned Hybrid Glass-Flax Composite Laminates Aged in Salt-Fog Environment: Mechanical Durability.在盐雾环境中老化的 pinned 混合玻璃-亚麻复合材料层压板：机械耐久性
Polymers (Basel). 2019 Dec 26;12(1):40. doi: 10.3390/polym12010040.
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Deterioration of Basic Properties of the Materials in FRP-Strengthening RC Structures under Ultraviolet Exposure.
紫外线照射下FRP加固RC结构中材料基本性能的劣化
Polymers (Basel). 2017 Aug 30;9(9):402. doi: 10.3390/polym9090402.