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In this paper, we consider the initial boundary value problem in an exterior domain for semilinear strongly damped wave equations with power nonlinear term of the derivative‐type  | u   t  |  q    or the mixed‐type  | u |  p   + | u   t  |  q   , where   p ,  q  > 1 . On one hand, employing the Banach fixed‐point theorem, we prove local (in‐time) existence of mild solutions. On the other hand, under some conditions for initial data and the exponents of power nonlinear terms, the blow‐up results are derived by applying the test function method.

Blow‐up of solutions to semilinear strongly damped wave equations with different nonlinear terms in an exterior domain