Author/Authors :
Eslami, S.M Civil Engineering Department - Shahrood University of Technology, Shahrood , Abdollahi, F Civil Engineering Department - Shahrood University of Technology, Shahrood , Shahmiri, J Civil Engineering Department - Shahrood University of Technology, Shahrood , Tavakkoli, S.M Civil Engineering Department - Shahrood University of Technology, Shahrood
Abstract :
This paper aims to introduce topology optimization as a robust tool for damage detection in
plane stress structures. Two objective functions based on natural frequencies and shape
modes of the structure are defined to minimize discrepancy between dynamic specifications
of the real damaged structure and the updating model. Damage area is assumed as a porous
material where amount of porosity signifies the damage intensity. To achieve this, Solid
Isotropic Material with Penalization (SIMP) model is employed. Sensitivity analysis is
achieved and a mathematical based method is used for solving the optimization problems. In
order to demonstrate efficiency and robustness of the method to identify various type of
damages in terms of both location and intensity, several numerical examples are presented
and the results are discussed.
