Tensile failure of water due to shock wave interactions

Abstract

Delayed failure in a shock-loaded silicon carbide A series of low stress shock impact experiments were performed on water to examine the dynamic response under tension and establish a lower bound for water rupture or cavitation threshold. The experimental cell configuration permitted particle velocity measurements at the water-air free surface separated by a 5-m-thick aluminized Mylar diaphragm. Water samples were triply distilled, de-ionized, and degassed prior to experiments. The average tensile strength for shock-induced cavitation in the water was found to be 8.7± 0.2 MPa. Experiments are compared with hydrocode simulations using a simple fracture criterion and published experimental data.

Analytical Models for the Response of the Double-Bottom Structure to Underwater Explosion Based on the Wave Motion Theory

“…In this paper, we assume that the water cavitation pressure is zero, in line with the assumptions of previous studies in this field [18,25,30]. In order to clarify the interaction process, we divide the response process into two stages: (i) the response prior to the onset of first cavitation and (ii) the response subsequent to the first cavitation.…”

Critical conditions for failure; stress levels, length scales, time scales

“…100 nm in laser shocked fluids. Other shock experiments on fluids have reported measured liquid strengths which approach the homogeneous cavitation limit in the fluid as the shock amplitude increases and the pulse length under compression is reduced [9]. In shock loading, a simple way to change the duration of the impulse is to vary the input compression pulse by using different loading platforms.…”

Experimental Study and Engineering Practice of Pressured Water Coupling Blasting

“…Underwater blasting often shows both a high efficiency of explosive energy transfer and a high rate of destruction of underwater structures [1,[12][13][14][15]. Given the low strength of the home-made cement blocks, two levels of explosive charges, 3 g and 8 g, were used in the test to avoid the potential danger of flying rock fragments.…”

“…Existing studies have shown that the wave impedance matching between explosives in the blast hole and the surrounding rock of hole wall is conducive to the utilization of the explosion energy and thus to a good rock-breaking effect [8][9][10][11]. Hydraulic blasting is based on the incompressibility and inertial effect of aqueous media, and the blasting effect is much better than detonation in drill hole [12][13][14][15]. However, hydraulic blasting involves complex blasting procedures and limitations are imposed on borehole sealing technology and equipment.…”