Shock induced structural response.
Gallo, Jose Gonzalo
MetadataShow full item record
An infinitely long, ring-stiffened, submerged, elastic cylinder having uniformly spaced elastic bulkheads is the structure considered. Loading is applied by a plane acoustic shock wave with front parallel to the cylinder axis. Dynamic pressure in the fluid is resolved into a free-field incident part and a scattered part. Structural response and scattered pressure in the surrounding fluid are found using finite element modeling of structure and fluid. Introduction of Fourier series makes the fluid region mathematically two-dimensional. A radiation, or non-reflecting, condition at the outer boundary of the fluid region is shown to give good results. A parametric study is made of effects of shock pulse rise time and duration on structural response. Results are presented as combinations of shock pressure and submergence pressure just sufficient to induce structural failure.
RightsCopyright is reserved by the copyright owner
Showing items related by title, author, creator and subject.
Experimental investigation of the parameters effecting the pressure profiles of finite amplitude standing waves in air-filled tubes Combs, Martin F.; Gertner, Charles A., Jr. (Monterey, California: U.S. Naval Postgraduate School, 1965);The finite-amplitude standing wave behavior of air within several tubes was experimentally investigated near standard conditions of temperature and pressure for frequencies below 3000 cps. The sound pressure levels obtained ...
McElwain, Brian D. (2002-06);Serpentine inlet ducts on modem tactical aircraft distort the inlet flow and decrease pressure recovery at the aerodynamic interface plane (AIP). Current inlet designs are more aggressive, increasing distortion and decreasing ...
Hamel, Joshua M. (2001);From 1999 through 2001 the University of Michigan carried out an experimental study of the high Reynolds number turbulent flow over a hydrofoil. The high Reynolds number foil, or Hifoil project was carried out in three ...