Study on behavior of crack propagation in internally pressurized tube

Abstract

It is known that the behavior of crack propagation in an internally pressurized tube is much different from that in a flat plate. For example, a sinusoidal crack may propagate in an internally pressurized tube under some conditions. On this phenomenon, experiments were carried out using glass tubes pressurized internally by water, As a result, it has been found out that the velocity of the sinusoidal crack tip is very small comparing with the elastic wave velocity in glass; therefore, the effect of inertia can be ignored in this case, When the crack velocity was not small, no sinusoidal crack was observed.