One of the most widely used models for simulating the dynamic failure of brittle materials under high-pressure, high-strain-rate loading is the Johnson–Holmquist (JH-2) model. It incorporates pressure, strain-rate, and damage-dependent strength. The JH-2 model has been applied to various ceramics, including AlN and ZrB₂–SiC composites. However, it is known that JH-2 can struggle to capture the pressure-independent strength saturation observed in some ceramics beyond a certain pressure.
[ Y = Y_0 [1 + \beta \epsilon_p]^n \times \fracG(P,T)G_0 ] equation of state and strength properties of selected
[ Y_i = \sigma_\textHEL \fracP^* + T^ 1 + T^ , \quad P^* = P/P_\textHEL, \quad T^* = T/T_\textHEL ] One of the most widely used models for
Understanding these materials is crucial for planetary modeling and interpreting the cores of rocky and icy worlds. including AlN and ZrB₂–SiC composites. However