About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
Characterization of Dynamic Hydrostatic Constitutive Response of Closed-cell PVC Foams Using Water Filled Shock Tube and 3D DIC |
Author(s) |
Piyush Wanchoo, Shyamal Kishore, Arun Shukla |
On-Site Speaker (Planned) |
Arun Shukla |
Abstract Scope |
Closed-cell PVC foams have been a material of choice in marine sandwich panel applications. These foams, which are an interconnected network of PVC and polyurea, have demonstrated superior performance compared to other foams of similar density under impact and blast loading conditions. In this study, we ascertain the response of crosslinked PVC foams with mass densities varying from 45 kg/m^3 to 130 kg/m^3 under dynamic hydrostatic loading conditions. A novel underwater shock tube facility developed is utilized to study the response of these foams under dynamic hydrostatic conditions where the 3D DIC technique in conjunction with ultra-high-speed photography is used to provide full-field deformation data. This technique enables measurement of volumetric strain of dynamic hydrostatically loaded PVC foams further enabling measurement of bulk modulus under shock loading conditions. Buckling collapse at a high strain rate consistently shows substantial increment under dynamic hydrostatic loading conditions when compared to hydrostatic loading conditions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Characterization, Polymers |