双冲击器作用下Twaron®织物低速冲击性能的数值分析研究

IF 0.7 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Fibres & Textiles in Eastern Europe Pub Date : 2023-02-01 DOI:10.2478/ftee-2023-0005
Canyi Huang, Lina Cui, Yiping Qiu, Yajun Liu
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引用次数: 0

摘要

摘要在本研究中,使用商业有限元程序ANSYS®开发和分析了有限元冲击模型,然后通过落锤冲击实验进行了验证。此外,设计和开发了具有不同冲击分布和位置的双冲击器冲击模型,以比较冲击特性。共执行了18个撞击场景,包括不对称和对称类型。研究了冲击位置对冲击阻力和持续时间的影响:冲击点越靠近织物中心,冲击持续时间越长。此外,还研究了撞击位置对撞击器故障偏转的影响,得出的结论是,无论对称或不对称撞击情况如何,两个撞击器的撞击位置与固定边界之间的平均距离越小,发生的总体平均故障偏转就越小。还确定了冲击位置和织物能量吸收能力的相关性。此外,还研究了冲击位置对织物应力分布和横向变形的影响,以及冲击速度的变化对织物冲击行为的影响。这些发现将为工程化柔体装甲和复合材料提供重要指导。
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Study on Low-Velocity Impact Behavior of Twaron® Fabric Subjected to Double-Impactor Impact from a Numerical Analysis Perspective
Abstract In the present study, a finite element impact model was developed and analyzed using commercial FEM code ANSYS® and then validated via a drop-weight impact experiment. Moreover, double-impactor impact models were designed and developed with different impact distribution and locations of two impactors to compare impact properties. A total of 18 impact scenarios comprised of asymmetric and symmetric types were performed. The effect of impact location on the impact resistance force and duration time was investigated: the closer the impact point is to the fabric center, the longer the impact duration time. In addition, the effect of impact location on impactor failure deflection was also investigated and it was concluded that regardless of the symmetric or asymmetric impact scenario, the smaller the average distance between the impact location of the two impactors from the fixed boundary, the smaller the overall average failure deflection that occurs. The relevance of impact location and fabric energy absorption capacity was also identified. Furthermore, the effect of impact location on fabric stress distribution and transverse deformation and of the variation of the impact velocity on fabric impact behaviors were investigated. These findings will provide important guidance for engineering soft body armor and composite materials.
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来源期刊
Fibres & Textiles in Eastern Europe
Fibres & Textiles in Eastern Europe 工程技术-材料科学:纺织
CiteScore
1.60
自引率
11.10%
发文量
12
审稿时长
13.5 months
期刊介绍: FIBRES & TEXTILES in Eastern Europe is a peer reviewed bimonthly scientific journal devoted to current problems of fibre, textile and fibrous products’ science as well as general economic problems of textile industry worldwide. The content of the journal is available online as free open access. FIBRES & TEXTILES in Eastern Europe constitutes a forum for the exchange of information and the establishment of mutual contact for cooperation between scientific centres, as well as between science and industry.
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