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首页> 外文期刊>Journal of Materials Engineering and Performance >Material Modeling and Ballistic-Resistance Analysis of Armor-Grade Composites Reinforced with High-Performance Fibers
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Material Modeling and Ballistic-Resistance Analysis of Armor-Grade Composites Reinforced with High-Performance Fibers

机译：高性能纤维增强的甲级复合材料的材料建模和抗弹性分析

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摘要

A new ballistic material model for 0°/90° cross-plied oriented ultra-high molecular weight (UHMW) polyethylene fiber-based armor-grade composite laminates has been constructed using open-literature data for the fiber and polymeric-matrix material properties and the general experimental/field-test observations regarding the deformation and failure modes in these types of materials. The present model is an extension of our recently developed unit cell-based ballistic material model for the same class of composites (M. Grujicic, G. Arakere, T. He,W.C. Bell, B. A. Cheeseman, C.-F. Yen, and B. Scott, A Ballistic Material Model for Cross-Plied Unidirectional Ultra-High Molecular-Weight Polyethylene Fiber-reinforced Armor-Grade Composites, Mater. Sci. Eng, A 2008, 498(1-2), p 231-241) which was found to be physically sound, but computationally not very efficient. The present model is constructed in such a way that it can be readily integrated into commercial finite element programs like ANSYS/Autodyn (ANSYS/Autodyn version 11.0, User Documentation, Century Dynamics Inc., a subsidiary of ANSYS Inc., 2007), as a User Material Subroutine. To validate the model, a series of transient nonlinear dynamics computational analyses of the transverse impact of armor-grade composite laminates with two types of bullets/projectiles is carried out and the computational results compared with their experimental counterparts. Relatively good agreement is found between the experiment and the computational analysis relative to: (a) the success of the armor panels of different areal densities in defeating the bullets at different initial bullet velocities; (b) postmortem spatial distribution of the damage modes and the extents within the panels; (c) the temporal evolution of the armor-panel back-face bulge; and (d) The existence of three distinct armor-penetration stages (i.e., an initial filament shearing/cutting dominated stage, an intermediate stage characterized by pronounced filament/matrix debonding/decohesion, and a final stage associated with the extensive filaments extension and armor-panel back-face bulging).
机译：利用纤维和聚合物基体材料特性的开放文献数据，构建了一种用于0°/ 90°交叠取向超高分子量（UHMW）聚乙烯纤维的铠装级复合层压板的新型弹道材料模型。有关这些类型材料的变形和破坏模式的一般实验/现场测试观察。本模型是我们最近开发的基于单元格的弹道材料模型的扩展，适用于同一类复合材料（M. Grujicic，G。Arakere，T。He，WC Bell，BA Cheeseman，C.-F。Yen和B.Scott，交叉单向超高分子量聚乙烯纤维增强铠装级复合材料的弹道材料模型，Mater.Sci.Eng.A，2008，498（1-2），第231-241页）被发现在物理上是合理的，但计算效率却不高。本模型的构建方式使其可以轻松集成到商业有限元程序中，例如ANSYS / Autodyn（ANSYS / Autodyn版本11.0，用户文档，ANSYS Inc.的子公司Century Dynamics Inc.，2007年）。用户资料子例程。为了验证该模型，对具有两种类型的子弹/弹丸的装甲级复合材料层合板的横向冲击进行了一系列瞬态非线性动力学计算分析，并将计算结果与实验对象进行了比较。在实验和计算分析之间，相对于以下方面找到了相对较好的一致性：（a）不同面密度的装甲板在以不同的初始子弹速度击落子弹时是否成功； （b）损害模式的事后空间分布和面板内的程度； （c）装甲板背面凸起的时间演变； （d）存在三个不同的装甲穿透阶段（即初始的长丝剪切/切割为主阶段，以显着的长丝/基质解粘/脱粘为特征的中间阶段以及与广泛的长丝延伸和铠装相关的最终阶段） -面板背面凸起）。

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  • 来源
    《Journal of Materials Engineering and Performance》 |2009年第9期|1169-1182|共14页
  • 作者

    M. Grujicic; P. S. Glomski; T. He; G. Arakere; W. C. Bell; B. A. Cheeseman;

  • 作者单位

    International Center for Automotive Research CU-ICAR Department of Mechanical Engineering Clemson University Clemson SC 29634 USA;

    International Center for Automotive Research CU-ICAR Department of Mechanical Engineering Clemson University Clemson SC 29634 USA;

    International Center for Automotive Research CU-ICAR Department of Mechanical Engineering Clemson University Clemson SC 29634 USA;

    International Center for Automotive Research CU-ICAR Department of Mechanical Engineering Clemson University Clemson SC 29634 USA;

    International Center for Automotive Research CU-ICAR Department of Mechanical Engineering Clemson University Clemson SC 29634 USA;

    Army Research Laboratory – Survivability Materials Branch Aberdeen Proving Ground Aberdeen MD 21005-5069 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    armor-grade composites; failure analysis; high-performance fibers; material modeling; polymer-matrix composites;

    机译：装甲级复合材料;失效分析;高性能纤维;材料建模;聚合物基复合材料;

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