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首页> 外文期刊>Journal of engineering materials and technology >Parallelized Finite Element Analysis of Knitted Textile Mechanical Behavior
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Parallelized Finite Element Analysis of Knitted Textile Mechanical Behavior

机译：针织纺织品力学行为的并行有限元分析

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摘要

Direct numerical simulations (DNS) of knitted textile mechanical behavior are for the first time conducted on high performance computing (HPC) using both the explicit and implicit finite element analysis (FEA) to directly assess effective ways to model the behavior of such complex material systems. Yarn-level models including interyarn interactions are used as a benchmark computational problem to enable direct comparison in terms of computational efficiency between explicit and implicit methods. The need for such comparison stems from both a significant increase in the degrees-of-freedom (DOFs) with increasing size of the computational models considered as well as from memory and numerical stability issues due to the highly complex three-dimensional (3D) mechanical behavior of such 3D architectured materials. Mesh and size dependency, as well as parallelization in an HPC environment are investigated. The results demonstrate a satisfying accuracy combined with higher computational efficiency and much less memory requirements for the explicit method, which could be leveraged in modeling and design of such novel materials.
机译：首次在高性能计算（HPC）上使用显式和隐式有限元分析（FEA）进行针织纺织品机械行为的直接数值模拟（DNS），以直接评估对此类复杂材料系统的行为进行建模的有效方法。包含纱线间相互作用的纱线级别模型被用作基准计算问题，以实现在显式方法和隐式方法之间的计算效率方面的直接比较。之所以需要进行这样的比较，是因为自由度（DOF）随着计算模型尺寸的增加而显着增加，以及由于高度复杂的三维（3D）机械导致的内存和数值稳定性问题这种3D建筑材料的行为。对网格和大小的依赖性以及HPC环境中的并行化进行了研究。结果表明，该显式方法具有令人满意的精度，较高的计算效率和较少的内存需求，可在此类新型材料的建模和设计中加以利用。

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  • 来源
    《Journal of engineering materials and technology》 |2019年第2期|021008.1-021008.10|共10页
  • 作者

    Liu D.; Koric S.; Kontsos A.;

  • 作者单位

    Drexel Univ, Theoret & Appl Mech Grp, Dept Mech Engn & Mech, 2991 W Sch House Ln,Apt PW21, Philadelphia, PA 19144 USA;

    Univ Illinois, Natl Ctr Supercomp Applicat, Dept Mech Sci & Engn, Urbana, IL 61801 USA;

    Drexel Univ, Theoret & Appl Mech Grp, Dept Mech Engn & Mech, 3141 Chestnut St, Philadelphia, PA 19104 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    implicit; explicit; finite element analysis; knitted textiles;

    机译：隐式;显式;有限元分析;针织纺织品;

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