Dynamic Response and Failure of 3D Printed Cylindrical Structures Subjected to Impact Loading
Abstract
The dynamic response and failure of 3D printed concentric cylinders with a fluid-filled annulus subjected to impact loading was examined throughout the course of this research. The cylinders, which have an outside radius of 70 mm (2.76 in), inside radius of 50 mm (1.97 in), wall thickness of 1 mm (0.04 in) and length of 257 mm (10.12 in) were with strain gages to measure strain along the longitudinal and hoop directions when impacted with a pendulum. Three primary cases were investigated: air-filled annulus at ambient pressure, water filled annulus, and pressurized air-filled annulus. Within the primary cases, four subcases were also explored: 100 percent and 50 percent water-filled annulus, and an annulus pressurized to 2 and 4 psi. In each case, the cylinders were placed horizontally while being constrained at both ends and impacted with a pendulum at the center. Throughout the experimentation, the strain gage data and applied impact forces were collected and examined to better understand the effect of fluid structure interaction of a cylindrical structure. The data were compared to identify the effect of varied annulus conditions on both the inner and outer cylinder walls.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2023
- Accession Number
- AD1213278
Entities
People
- Preston B Gibbons
Organizations
- Naval Postgraduate School