This paper is concerned with the study of nonlinear viscoelastic evolution equation with strong damping and source terms, described by utt-Delta Bu+integral 0tg(t-tau)Delta Bu(tau)d tau+f(x)ut|ut|m-2 =h(x)|u|p-2u,x is an element of intB,t>0, where B is a stretched manifold. First, we prove the solutions of problem (1.1) in the cone Sobolev space H2,01,n2(B), which admit a blow up in finite time for p>m and positive initial energy. Then, we construct a lower bound for obtaining blow up time under appropriate assumptions on data.