This article introduces a tool-equipped method for modeling and simulating behaviors of a Critical Infrastructure (CI) considered here as System of Systems, then evaluating its resilience. The method is based on modelling concepts, languages and tools from Model Based System Engineering (MBSE), System of Systems Engineering (SoSE) and non-functional Properties management domains. It proposes an evaluation technique to evaluate nonfunctional properties, and particularly here considered resilience for which a metric is proposed. Simulation and evaluation are done by using a Multi Agent Systems (MAS).