Blow up in a nonlinear viscoelastic wave equation with strong damping

In this paper, we consider the nonlinear viscoelastic equation: utt−△u+∫0tg(t−τ)△u(τ)dτ−△ut=∣u∣p−2u,inΩ×[0,T], with initial conditions and Dirichlet boundary conditions. For nonincreasing positive functions gg, we show the finite time blow up of some solutions whose initial data have arbitrarily high initial energy.