Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain rates
Shear thickening fluids (STFs) exhibit unique rheological properties, but research predominantly focuses on SiO2-based systems for ballistic applications, with limited studies on starch-based STFs (S-STFs) at high strain rates. This study investigates corn, potato, and mung bean S-STFs subjected to...
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| Language: | English |
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Elsevier
2025-05-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525003314 |
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| author | Chengrui Xie Yuliang Lin Ke Li Minzu Liang Yuwu Zhang |
| author_facet | Chengrui Xie Yuliang Lin Ke Li Minzu Liang Yuwu Zhang |
| author_sort | Chengrui Xie |
| collection | DOAJ |
| description | Shear thickening fluids (STFs) exhibit unique rheological properties, but research predominantly focuses on SiO2-based systems for ballistic applications, with limited studies on starch-based STFs (S-STFs) at high strain rates. This study investigates corn, potato, and mung bean S-STFs subjected to dynamic compression (1870 s−1 ∼ 8510 s−1) via split Hopkinson pressure bar (SHPB) testing. Results show that S-STFs exhibit mass fraction and strain rate dependent behaviors regarding peak stress, impact toughness, and transition times. As the starch mass fraction increases from 50 wt% to 60 wt%, the peak stress of corn starch-based STF rises from 96.37 MPa to 126.95 MPa, and impact toughness increases from 77.36 Jm−3·106 to 98.72 Jm−3·106, while the transition time decreases from 57 μs to 26 μs. Similar trends are observed in potato starch-based and mung bean starch-based STFs. Higher strain rates lead to elevated peak stress and improved impact toughness, with reduced transition times. Mung bean starch-based STF exhibits superior shear thickening behavior due to more uniform particle size distribution and higher aspect ratio. A phenomenological model establishes quantitative relationships between particle morphology, mass fraction, and compressive response. This study provides significant insights into the behaviors of S-STFs in extreme environments. |
| format | Article |
| id | doaj-art-693a9a2b74384b2c9b8a48fe2b89337c |
| institution | OA Journals |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
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| series | Materials & Design |
| spelling | doaj-art-693a9a2b74384b2c9b8a48fe2b89337c2025-08-20T02:38:30ZengElsevierMaterials & Design0264-12752025-05-0125311391110.1016/j.matdes.2025.113911Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain ratesChengrui Xie0Yuliang Lin1Ke Li2Minzu Liang3Yuwu Zhang4College of Science, National University of Defense Technology, Changsha 410073, PR ChinaCollege of Science, National University of Defense Technology, Changsha 410073, PR ChinaCollege of Science, National University of Defense Technology, Changsha 410073, PR ChinaCollege of Science, National University of Defense Technology, Changsha 410073, PR ChinaCorresponding author.; College of Science, National University of Defense Technology, Changsha 410073, PR ChinaShear thickening fluids (STFs) exhibit unique rheological properties, but research predominantly focuses on SiO2-based systems for ballistic applications, with limited studies on starch-based STFs (S-STFs) at high strain rates. This study investigates corn, potato, and mung bean S-STFs subjected to dynamic compression (1870 s−1 ∼ 8510 s−1) via split Hopkinson pressure bar (SHPB) testing. Results show that S-STFs exhibit mass fraction and strain rate dependent behaviors regarding peak stress, impact toughness, and transition times. As the starch mass fraction increases from 50 wt% to 60 wt%, the peak stress of corn starch-based STF rises from 96.37 MPa to 126.95 MPa, and impact toughness increases from 77.36 Jm−3·106 to 98.72 Jm−3·106, while the transition time decreases from 57 μs to 26 μs. Similar trends are observed in potato starch-based and mung bean starch-based STFs. Higher strain rates lead to elevated peak stress and improved impact toughness, with reduced transition times. Mung bean starch-based STF exhibits superior shear thickening behavior due to more uniform particle size distribution and higher aspect ratio. A phenomenological model establishes quantitative relationships between particle morphology, mass fraction, and compressive response. This study provides significant insights into the behaviors of S-STFs in extreme environments.http://www.sciencedirect.com/science/article/pii/S0264127525003314Starch-based shear thickening fluidsDynamic compressionRheological propertiesStrain-rate sensitivitySHPB |
| spellingShingle | Chengrui Xie Yuliang Lin Ke Li Minzu Liang Yuwu Zhang Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain rates Materials & Design Starch-based shear thickening fluids Dynamic compression Rheological properties Strain-rate sensitivity SHPB |
| title | Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain rates |
| title_full | Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain rates |
| title_fullStr | Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain rates |
| title_full_unstemmed | Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain rates |
| title_short | Dynamic mechanical characteristics of starch-based shear thickening fluids at high strain rates |
| title_sort | dynamic mechanical characteristics of starch based shear thickening fluids at high strain rates |
| topic | Starch-based shear thickening fluids Dynamic compression Rheological properties Strain-rate sensitivity SHPB |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525003314 |
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