Finite element simulation of low-density thermally bonded nonwoven materials: Effects of orientation distribution function and arrangement of bond points |
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| Authors: | Xiaonan Hou Memiş Acar Vadim V. Silberschmidt |
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| Affiliation: | 1. Ovidius University of Constanta Romania;2. University of Stuttgart Germany;1. Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong;2. Department of Pathology, The University of Hong Kong, Hong Kong;3. State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong;4. Department of Physics, Hong Kong Baptist University, Hong Kong;1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, 410082 PR China;2. School of Computing, Engineering & Digital Technologies, Teesside University, Middlesbrough, UK;1. Department of Computer Science and Mathematical Informatics, Nagoya University, A4-2(780) Furocho, Chikusaku, Nagoya 464-8603, Japan;2. Department of Electrical and Electronics Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui City, Fukui 910-8507, Japan;1. Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;2. School of Chemical and Process Engineering, University of Leeds, LS2 9JT Leeds, UK |
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| Abstract: | A random and discontinuous microstructure is one of the most characteristic features of a low-density thermally bonded nonwoven material, and it affects their mechanical properties significantly. To understand their effect of microstructure on the overall mechanical properties of the nonwoven material, discontinuous models are developed incorporating random discontinuous structures representing microstructures of a real nonwoven material. Experimentally measured elastic material properties of polypropylene fibres are introduced into the models to simulate the tensile behaviour of the material for its both principle directions: machine direction and cross direction. Additionally, varying arrangements of bond points and schemes of fibres’ orientation distribution are implemented in the models to analyse the respective effects. |
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