| Shear Thickening Fluids for Blast Wave Mitigation Applications: Preparation, Characterization and Numerical Modeling |
| Paper ID : 1072-IUGRC5 (R1) |
| Authors: |
|
abdallah Elsayed Gamal eldin *1, Tamer Zakaria Wafy2, Hesham Ramzy Tantawy3 1Military Technical College 2Military Technical college 3Kobry Elkobbah, Cairo, Egypt |
| Abstract: |
| Enhancing the structure mitigation from blast load with available materials is considered a challenging task. A shear thickening non-Newtonian fluid (STF) was prepared and studied for blast wave mitigation applications. STF was prepared by dispersing fumed silica (FS) particles within polyethylene glycol (PEG) by mechanical mixing. Average particle size of the dispersion was investigated by dynamic light scattering (DLS). A full rheological study was conducted with afterwards data processing to obtain governing equations for viscosity behavior over the thickening range using the non-Newtonian power law model. Blast threat was modulated using AUTODYN with further scaling to form better idea of equivalent threats. A numerical study was conducted using FLUENT concerning the blast loading attenuation capabilities of the prepared samples. Relatively high-loaded samples (10%, 15%) showed higher capabilities than other samples. The prepared material offers a wide range of protection applications with the possibility of being incorporated in composite systems to enhance their mitigation abilities. |
| Keywords: |
| Shear Thickening Fluids; Blast Load; AUTODYN; Fumed Silica; composite systems |
| Status : Paper Accepted (Oral Presentation) |
