Geometric impact on the implosion energy and failure mechanics of carbon composite tubes
Date of Original Version
A parametric study on the implosion of carbon fiber reinforced epoxy composite tubes is conducted to determine effects of geometric scaling. Experiments are performed in a pressure vessel designed to provide constant hydrostatic pressure through the collapse. Roll-wrapped carbon fiber/epoxy tubes with identical wall thickness, length, and layup are studied to explore the effect of diameter on the modes of failure and strength of pressure pulse. 3-D digital image correlation technique is used to capture the full-field deformation and velocities. Dynamic pressure transducers measure the pressure pulses, and that data are used to determine energy released in the collapse. Results show that by changing the radius-to-thickness ratio, very different failure modes are caused in the structure, which has significant effects on the pressure trace and resulting energy released.
Multiscale and Multidisciplinary Modeling, Experiments and Design
Pinto, Michael, Nicholas A. DeNardo, and Arun Shukla. "Geometric impact on the implosion energy and failure mechanics of carbon composite tubes." Multiscale and Multidisciplinary Modeling, Experiments and Design 1, 3 (2018): 171-179. doi:10.1007/s41939-018-0015-y.