1. Method for Characterizing the Rate-dependent Behavior of Aramid Fibers Coated with Shear Thickening Fluids
- Author
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Wonjin Na, Woong-Ryeol Yu, Sungjin Han, and Hyunchul Ahn
- Subjects
Dilatant ,Toughness ,Specific modulus ,Materials science ,Polymers and Plastics ,General Chemical Engineering ,Rate dependent ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Aramid ,Specific strength ,Shear rate ,Composite material ,0210 nano-technology ,Microscale chemistry - Abstract
Due to their high specific strength, specific stiffness, and toughness, aramid fabrics have been used in various applications, especially those involving bulletproofing. The bulletproof capability and mechanical properties of aramid fabrics can be enhanced at the mesoscale with shear thickening fluid (STF) coatings; however, little is known about the microscale characteristics of STF-coated aramid fabrics. This study aimed to investigate the microscale rate-dependent behavior of STF-coated single aramid fibers inside aramid yarns using a newly proposed testing method, in which a high shear rate is applied to STF-coated yarns and fibers in a single-fiber pull-out test.
- Published
- 2021
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