This paper is concerned with the study of the nonlinear viscoelastic
evolution equation with strong damping and source terms, described by [u_{tt}
- \Delta_{B}u + \int_{0}^{t}g(t-\tau)\Delta_{B}u(\tau)d\tau +
f(x)u_{t}|u_{t}|^{m-2} = h(x)|u|^{p-2}u , \hspace{1 cm} x\in intB, t >
0,] where B is a stretched manifold. First, we prove the solutions
of problem {1.1} in cone Sobolev space
H2,01,2n(B), admit a blow up in finite time
for p>m and positive initial energy. Then, we construct a lower bound for
obtained blow up time under appropriate assumptions on data.