Experimental investigation of free-field implosion of filament wound composite tubes
Date of Original Version
The mechanisms and energies associated with the hydrostatic implosion of composite cylinders are investigated experimentally and numerically. Experiments are conducted in a large pressure vessel, designed as to provide an adequate reflection-free window to best capture pressure waves resulting from the collapse. Both glass-fiber/polyester and carbon-fiber/epoxy filament wound thin-walled (R/t > 15) tubes are tested with varying L/D ratios to explore the effect of geometry on the collapse pressure and mechanics of the collapse. 3D Digital Image Correlation (DIC) is used to capture the full-field displacements and strains during the implosion event, and dynamic pressure transducers are employed to measure the pressure pulse generated by the collapse. Computational models are developed to verify and better understand key mechanisms of failure during hydrostatic buckling.
Conference Proceedings of the Society for Experimental Mechanics Series
Pinto, M., and A. Shukla. "Experimental investigation of free-field implosion of filament wound composite tubes." Conference Proceedings of the Society for Experimental Mechanics Series 4B, (2015): 109-115. doi:10.1007/978-3-319-06992-0_14.