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.

Optimal placement of MEMS sensors for damage detection in composite plates

Mariani, Stefano;Bruggi, Matteo;Caimmi, Francesco;Capellari, Giovanni
2018

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.
Composites; Damage detection; Micro-electro-mechanical systems (MEMS); Structural health monitoring; Thin plates; Building and Construction
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1085133
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