Response of shear thickening fluids to high velocity ballistic impact

IF 5.1 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Impact Engineering Pub Date : 2025-02-05 DOI:10.1016/j.ijimpeng.2025.105248

Shuchang Long , Huanming Chen , Xiaohu Yao , Tao Liu

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引用次数: 0

Abstract

Shear thickening fluid is widely used in protective structures due to its distinctive rheology, exhibiting a transition from liquid to a solid-like state under impact. This paper presents experimental, numerical and analytical studies on shear thickening fluid under ballistic impact. First of all, corn starch suspensions with various fractions were prepared, and their shear thickening properties were verified by rheological tests. Then, ballistic impact tests were carried out on the suspensions, and a finite element model was established for numerical calculation. Subsequently, a novel analytical model based on Oseen equations was proposed to predict the ballistic behavior of shear thickening fluid. The model was verified by both test and simulation results, and utilized in the parametric studies. The ballistic limit velocities of shear thickening fluid under different rheological parameters and impact conditions were obtained, which lays a foundation for the application of shear thickening fluid in impact resistant structures.

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剪切增稠流体对高速弹道冲击的响应

剪切增稠液由于其独特的流变性，在冲击下表现出从液体到固体状态的转变，被广泛应用于保护结构。本文对弹道冲击下的剪切增稠流体进行了实验、数值和分析研究。首先，制备了不同馏分的玉米淀粉悬浮液，并通过流变学试验验证了其剪切增稠性能。然后对悬架进行了弹道冲击试验，并建立了有限元模型进行数值计算。在此基础上，提出了一种新的基于Oseen方程的解析模型来预测剪切增稠流体的弹道行为。试验和仿真结果验证了该模型的正确性，并将其用于参数化研究。得到了剪切增稠液在不同流变参数和冲击条件下的弹道极限速度，为剪切增稠液在抗冲击结构中的应用奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Impact Engineering 工程技术-工程：机械

CiteScore

8.70

自引率

13.70%

发文量

241

审稿时长

52 days

期刊介绍： The International Journal of Impact Engineering, established in 1983 publishes original research findings related to the response of structures, components and materials subjected to impact, blast and high-rate loading. Areas relevant to the journal encompass the following general topics and those associated with them: -Behaviour and failure of structures and materials under impact and blast loading -Systems for protection and absorption of impact and blast loading -Terminal ballistics -Dynamic behaviour and failure of materials including plasticity and fracture -Stress waves -Structural crashworthiness -High-rate mechanical and forming processes -Impact, blast and high-rate loading/measurement techniques and their applications