Dynamic cavitation in soft solids under monotonically increasing pressure

Impact-induced cavitation can be widely found in soft solids and biological tissues and is very different from the cavitation problem under quasi-static loading. Experimental evidence has shown that the cavitation in brain tissue may be a potential mechanism for traumatic brain injury. In this work, we study the dynamic cavitation under monotonically increasing pressure and investigate the influence of loading rates on cavitation behaviors. The dynamic behavior of cavity surface with and without surface energy is investigated based on nonlinear dynamics. We find that the inertial effect introduced by the dynamic loading is not negligible at large pressure rate. Considering the surface effect, the cavity surface will expand, shrink, and then oscillate before the occurrence of infinite cavity expansion. Results will be helpful to better understand the cavitation phenomenon in biological tissues under dynamic loading.

Automated summary

The study reveals that the inertial effect introduced by dynamic loading is significant at large pressure rates, and considering the surface effect, the cavity surface will expand, shrink, and oscillate before infinite cavity expansion occurs.