A general approach to simulate the mechanical behavior of textile materials by taking into account all their constitutive elementary fibers and contacts between them is presented in this paper. A finite element code, based on an implicit solver, is develop to model samples of woven fabrics as assemblies of beams submitted to large displacements and developing contactfriction interactions between themselves. Special attention is paid to the detection and modeling of the numerous contacts occurring in this kind of structures. Robust models and efficient algorithms allow to consider samples made of few hundreds of fibers. The unknown initial configuration of the woven fabric is obtained by simulation according to the chosen weaving pattern, providing useful informations on fibers trajectories and tows crosssections shapes. Various loading cases can then be applied to the textile sample, in presence of an elastic matrix, so as to identify its mechanical behavior under different solicitations. Results of simulations performed on coated fabric samples are given to illustrate the approach.
Flexible, solid electrolyte-based lithium battery composed of LiFePO4 cathode and Li4Ti5O10 anode for applications in smart textiles
在这里，我们报告制造的灵活和可拉伸的电池组成的应变自由LiFePO 4阴极，Li 4 Ti 5 O 10阳极和固体聚环氧乙烷（PEO）电解质作为隔膜层。该电池是从智能纺织品应用的角度开发的。该电池以固体热塑性电解质为关键使能元件，可挤压或拉伸成纤维或细条，直接与智能纺织品制造中使用的编织工艺兼容。本文首先详细介绍了材料的选择，电极和隔膜层的制造和表征。然后组装电池并对其进行表征，最后，将由几个长条制成的大型电池样品编织成织物，用导电线连接，并进行表征。在本文中，我们详细研究了电池设计的两个实际方面：第一是以导电碳和聚合物粘合剂材料的优化比例制备阴极/阳极材料的复合材料，第二是电池性能，包括循环，可逆性和阴极/阳极材料的相容性。最后，当铸造电极和隔膜层时，我们主要关注使用水溶液代替有机溶剂，以使制造过程环境友好。
Textiles: from twisted yarn to topology and mechanics
University of California, Berkeley（加州大学伯克利分校）；Tohoku University（东北大学）；RIKEN（理化学研究所）；Hiroshima University（广岛大学）；Drexel University（德雷塞尔大学）；University of Pennsylvania（宾夕法尼亚大学）；Aoyama Gakuin University（青山学院大学）；Rice University（莱斯大学）；Texas A&M University（德州农工大学）
Analysis of the Compaction Behavior of Textile Reinforcements in Low-Resolution In-Situ CT Scans via Machine-Learning and Descriptor-Based Methods
Institute of Lightweight Engineering and Polymer Technology（轻质工程与聚合物技术研究所）；Center for Scalable Data Analytics and Artificial Intelligence Dresden/Leipzig (ScaDS.AI)（可扩展数据分析与人工智能中心（Dresden/Leipzig））
