Optimal Placement of MEMS Sensors for Damage Detection in Composite Plates

Title:Optimal Placement of MEMS Sensors for Damage Detection in Composite Plates

Volume: 10 Issue: 1

Author(s): Stefano Mariani*, Matteo Bruggi, Francesco Caimmi and Giovanni Capellari

Affiliation:

• Politecnico di Milano, Dipartimento di Ingegneria Civile e Ambientale, Piazza L. da Vinci 32, 20133 Milano,Italy

Keywords: Structural health monitoring, Micro-Electro-Mechanical Systems (MEMS), thin plates, composites, damage detection.

Abstract: Objective: Inertial Micro Electro-Mechanical Systems (MEMS) have recently been proposed as sensing components of surface-mounted structural health monitoring systems aimed to detect damage in flexible plates, subjected to either quasi-static or dynamic loadings.

Method: In this paper, we discuss a topology optimization approach to smartly deploy an array of MEMS accelerometers over thin flexible plates, partially allowing for scattering in their placement.

Result: We assume damage (i.e. a reduction of the local bending stiffness of the plate) to be located anywhere, and we show how boundary conditions, symmetry conditions and the stacking sequence in case of a composite laminate can affect the optimal sensor placement.

Cite this article as:

Mariani Stefano *, Bruggi Matteo , Caimmi Francesco and Capellari Giovanni , Optimal Placement of MEMS Sensors for Damage Detection in Composite Plates, Micro and Nanosystems 2018; 10 (1) . https://dx.doi.org/10.2174/1876402910666180417153602