Viscoelastic fluids can be difficult to model due the wide range of different physical behaviors that polymer melts exhibit. One such feature is viscous elastic boundary layer. We address particular problem a viscoelastic shear-dependent fluid flowing past corner and investigate how properties layer change for White-Metzner fluid. The equations are derived upstream matched with far-field flow. ...

This work describes the high-velocity impact behavior of doubly curved sandwich panels. The panels are manufactured using carbon/fiber epoxy composite face sheets, polyurethane foam core and 3D-printed PLA plastic cellular auxetic (re-entrant) honeycombs. High-velocity tests carried out by a single-stage air gas gun test machine. A spherical steel projectile with radius 5 mm is impacted to cent...