Cavitation Models for Structures Excited by a Plane Shock Wave

Submerged fluid-filled cylindrical shell subjected to a shock wave: Fluid–structure interaction effects

“…Namely, we have seen that the pressure in some regions of the internal fluid can be negative. This suggests the possibility of cavitation, since it is known that water, for example, cannot withstand significant tension, and will start to cavitate if pressure falls below a certain critical value (maximum tension water can withstand for very short times is in the 10-100 kPa range [e.g., Makinen (1998)]). Cavitation in the systems of the type considered is a significant engineering concern, and is a challenging phenomenon to study from the researcher's perspective.…”

“…if the cavitating region does not interact with the shell surface), it usually leads to structure reloading after the cavitation zone collapses [e.g., Wardlaw and Luton (2000)]. If the cavitation region is adjacent to the shell surface, separation of the latter from the fluid occurs leading to much higher displacements and deformations [e.g., Makinen (1998)]. When the shell and fluid come in contact again, shell reloading takes place with the pressures comparable to those of the initial shock loading.…”

Interaction between a submerged evacuated cylindrical shell and a shock wave—Part I: Diffraction–radiation analysis

“…This means that cavitation is a possibility for intense enough incident loads [e.g., Makinen (1998), Wardlaw and Luton (2000), and Mair (1999a)]. If cavitation does develop, the subsequent collapse of the cavitation region or/and separation of the shell from the fluid, both often leading to significant reloading of the shell, will considerably change the overall dynamics of the process.…”

Analytical Modeling of the Underwater Shock Response of Rigid and Elastic Plates Near a Solid Boundary

“…' In addition to analytical studies, much work also exists on the numerical modeling of the underwater shock or underwater explosion response of plates. Makinen [5] used the plane wave approximation to model the fluid during the shock-loading phase and compared results using different cavitation models. The result showed that the most important factor for the impact pressure on the structure is the driving pressure for the growth of the cavity, and the reloading time is critical for the structural response.…”