嵌入/未嵌入钢丝网的 GFRP 层压板在低速冲击和冲击后拉伸加载下的损伤机理实验研究

IF 3.2 3区化学 Q2 POLYMER SCIENCE

e-Polymers Pub Date : 2024-04-02 DOI:10.1515/epoly-2024-0002

Ye Wu, Peiyu You, Wuchao Hua, Cuilong Liu, Shuaimin Zhang, Youping Liu

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引用次数: 0

摘要

为了研究嵌入/未嵌入钢丝网的玻璃纤维增强聚合物（GFRP）层压板的冲击行为和残余强度，我们仔细进行了低速冲击（LVI）和冲击后拉伸试验。根据钢丝网的丝径和间距，我们采用传统的真空辅助树脂灌注法制作了两组试样。然后，采用数字图像相关技术记录应变演变。根据结果，包括冲击响应历史、破坏形态、应变轮廓，详细揭示了钢丝网的破坏机制和参数影响。结果表明，钢丝网的嵌入可以提高抗冲击性能和残余强度，随着钢丝直径的增大和钢丝间距的减小，效果更加显著。与 GFRP 层压板相比，最厚和最密钢丝网的试样在 LVI 试验中的峰值力分别增加了 105% 和 141%，在冲击后拉伸试验中分别增加了 254% 和 141%。

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Experimental investigation on damage mechanism of GFRP laminates embedded with/without steel wire mesh under low-velocity-impact and post-impact tensile loading

To investigate the impact behavior and residual strength of glass fiber-reinforced polymer (GFRP) laminates embedded with/without steel wire mesh, low-velocity-impact (LVI) and post-impact tensile tests are conducted carefully. According to the wire diameter and spacing of steel wire mesh, we manufactured two groups of specimens via conventional vacuum-assisted resin infusion. Further, the digital image correlation technique was applied to record the strain evolution. Based on the results, including impact response history, failure morphology, strain contour, the failure mechanism and effect of the parameters of steel wire mesh is revealed in detail. The results show that the embedding of wire mesh can improve the impact resistance and residual strength, with a more significant effect as both the increase of wire diameter and decrease of wire spacing. Compared with GFRP laminates, the peak force of specimens with the thickest and densest wire mesh increase by 105% and 141% under LVI tests and 254% and 141% in post-impact tensile tests, respectively.

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来源期刊

e-Polymers 化学-高分子科学

CiteScore

5.90

自引率

10.80%

发文量

审稿时长

6.4 months

期刊介绍： e-Polymers is a strictly peer-reviewed scientific journal. The aim of e-Polymers is to publish pure and applied polymer-science-related original research articles, reviews, and feature articles. It includes synthetic methodologies, characterization, and processing techniques for polymer materials. Reports on interdisciplinary polymer science and on applications of polymers in all areas are welcome. The present Editors-in-Chief would like to thank the authors, the reviewers, the editorial staff, the advisory board, and the supporting organization that made e-Polymers a successful and sustainable scientific journal of the polymer community. The Editors of e-Polymers feel very much engaged to provide best publishing services at the highest possible level.