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Improving Impact Resistance of Plain-Woven Ultra-High Molecular Weight Polyethylene Fabrics
Several commercial spray coatings were used on ultra-high molecular weight polyethylene (UHMWPE) plain-woven fabrics, and yarn pull-out tests were carried out. Spray materials consisted of various polymers and adhesives. Samples were prepared with single- and double-coated surfaces. On average, 23.5% of additional areal density was introduced by the coatings. Yarn pull-out force significantly increased upon coating the fabric samples. For the rubber-coated sample, the peak pull-out force was increased by approximately 98 times that of the neat counterpart. Three samples which exhibited the highest pull-out load per unit of areal density were subjected to high-velocity gas gun testing using a 12-mm (7.05 g) steel ball projectile. Impact velocities ranged from 140 to 230 m/s. Each sample consisted of four plies of coated and neat fabrics. Rubber-coated samples showed the highest specific energy absorption. Changes in failure mechanism due to coating were observed. While the neat fabric targets were perforated purely by a wedge-through mechanism, the coated samples were perforated by a combination of wedge-through mechanism and yarn failure. Energy absorption was higher in the coated samples than in the neat counterparts. The method proposed herein is a viable alternative to other existing techniques such as shear thickening fluid impregnation due to less complexity and relatively lower areal density increase. This study showcases the potential of using plain-woven fabrics in impact resistant applications.
Improving Impact Resistance of Plain-Woven Ultra-High Molecular Weight Polyethylene Fabrics
Several commercial spray coatings were used on ultra-high molecular weight polyethylene (UHMWPE) plain-woven fabrics, and yarn pull-out tests were carried out. Spray materials consisted of various polymers and adhesives. Samples were prepared with single- and double-coated surfaces. On average, 23.5% of additional areal density was introduced by the coatings. Yarn pull-out force significantly increased upon coating the fabric samples. For the rubber-coated sample, the peak pull-out force was increased by approximately 98 times that of the neat counterpart. Three samples which exhibited the highest pull-out load per unit of areal density were subjected to high-velocity gas gun testing using a 12-mm (7.05 g) steel ball projectile. Impact velocities ranged from 140 to 230 m/s. Each sample consisted of four plies of coated and neat fabrics. Rubber-coated samples showed the highest specific energy absorption. Changes in failure mechanism due to coating were observed. While the neat fabric targets were perforated purely by a wedge-through mechanism, the coated samples were perforated by a combination of wedge-through mechanism and yarn failure. Energy absorption was higher in the coated samples than in the neat counterparts. The method proposed herein is a viable alternative to other existing techniques such as shear thickening fluid impregnation due to less complexity and relatively lower areal density increase. This study showcases the potential of using plain-woven fabrics in impact resistant applications.
Improving Impact Resistance of Plain-Woven Ultra-High Molecular Weight Polyethylene Fabrics
Lecture Notes in Civil Engineering
Dissanayake, Ranjith (editor) / Mendis, Priyan (editor) / Weerasekera, Kolita (editor) / De Silva, Sudhira (editor) / Fernando, Shiromal (editor) / Konthesingha, Chaminda (editor) / Weerasinghe, D. (author) / Breen, S. (author) / Wang, H. (author) / Mohotti, D. (author)
12th International Conference on Structural Engineering and Construction Management ; Chapter: 39 ; 549-559
2022-09-29
11 pages
Article/Chapter (Book)
Electronic Resource
English
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