Effects of Fiber Shape on Mechanical Properties of Fiber Assemblies
The effects of fiber shape on the mechanical responses of fiber assemblies under compression, tension, and shear deformations are numerically investigated using the discrete element method (DEM). Simulations of the compression of ring-shaped fibers are consistent with experimental results, verifying...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/7/2712 |
| _version_ | 1797607563182735360 |
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| author | Dandan Xu Huibin Ma Yu Guo |
| author_facet | Dandan Xu Huibin Ma Yu Guo |
| author_sort | Dandan Xu |
| collection | DOAJ |
| description | The effects of fiber shape on the mechanical responses of fiber assemblies under compression, tension, and shear deformations are numerically investigated using the discrete element method (DEM). Simulations of the compression of ring-shaped fibers are consistent with experimental results, verifying the discrete element method code. In the compressive tests of S-shaped fibers, pressure exhibits a nonmonotonic dependence on fiber curvature; while in the tensile tests, yield tensile stress generally decreases with increasing fiber curvature. In the shear tests, yield shear stress decreases with increasing fiber curvature for the S-shaped fibers, and the smallest yield shear stresses and the smallest coordination numbers are obtained for U-shaped and Z-shaped fibers. It is interesting to observe that for the assemblies of various fiber shapes, yield shear stress increases with increasing maximum Feret diameter of the fibers, which characterizes the largest dimension of a fiber between two parallel tangential lines. These novel observations of the effects of fiber shape provide some guidelines for material designs with the fibers. |
| first_indexed | 2024-03-11T05:31:43Z |
| format | Article |
| id | doaj.art-52c21ad8dfbd4b4a8d84f5e4d05bc284 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T05:31:43Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-52c21ad8dfbd4b4a8d84f5e4d05bc2842023-11-17T17:04:01ZengMDPI AGMaterials1996-19442023-03-01167271210.3390/ma16072712Effects of Fiber Shape on Mechanical Properties of Fiber AssembliesDandan Xu0Huibin Ma1Yu Guo2College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, ChinaState Key Laboratory of Clean Energy Utilization, Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, ChinaThe effects of fiber shape on the mechanical responses of fiber assemblies under compression, tension, and shear deformations are numerically investigated using the discrete element method (DEM). Simulations of the compression of ring-shaped fibers are consistent with experimental results, verifying the discrete element method code. In the compressive tests of S-shaped fibers, pressure exhibits a nonmonotonic dependence on fiber curvature; while in the tensile tests, yield tensile stress generally decreases with increasing fiber curvature. In the shear tests, yield shear stress decreases with increasing fiber curvature for the S-shaped fibers, and the smallest yield shear stresses and the smallest coordination numbers are obtained for U-shaped and Z-shaped fibers. It is interesting to observe that for the assemblies of various fiber shapes, yield shear stress increases with increasing maximum Feret diameter of the fibers, which characterizes the largest dimension of a fiber between two parallel tangential lines. These novel observations of the effects of fiber shape provide some guidelines for material designs with the fibers.https://www.mdpi.com/1996-1944/16/7/2712fiber shapecompressiontensionshearflexible fibersdiscrete element method |
| spellingShingle | Dandan Xu Huibin Ma Yu Guo Effects of Fiber Shape on Mechanical Properties of Fiber Assemblies Materials fiber shape compression tension shear flexible fibers discrete element method |
| title | Effects of Fiber Shape on Mechanical Properties of Fiber Assemblies |
| title_full | Effects of Fiber Shape on Mechanical Properties of Fiber Assemblies |
| title_fullStr | Effects of Fiber Shape on Mechanical Properties of Fiber Assemblies |
| title_full_unstemmed | Effects of Fiber Shape on Mechanical Properties of Fiber Assemblies |
| title_short | Effects of Fiber Shape on Mechanical Properties of Fiber Assemblies |
| title_sort | effects of fiber shape on mechanical properties of fiber assemblies |
| topic | fiber shape compression tension shear flexible fibers discrete element method |
| url | https://www.mdpi.com/1996-1944/16/7/2712 |
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