Layered composite plates subjected to cyclic or low-velocity impact loadings are typically affected by local failures linked to delamination, i.e. debonding between adjacent laminae. Micro electro-mechanical systems (MEMS) have been recently proposed as sensing components of surface-mounted structural health monitoring systems, aimed to detect such delamination events in real-time. Here, we show some experimental results to get insights into the capability of MEMS accelerometers to detect delamination, and identify its magnitude. We also discuss a topology optimization-like approach to smartly deploy sensors over plates of complex geometry, so as to locate a delamination of unknown position.

Health monitoring of flexible composite plates: a MEMS-based approach

MARIANI, STEFANO;CORIGLIANO, ALBERTO;CAIMMI, FRANCESCO;EFTEKHAR AZAM, SAEED;BRUGGI, MATTEO;
2012

Abstract

Layered composite plates subjected to cyclic or low-velocity impact loadings are typically affected by local failures linked to delamination, i.e. debonding between adjacent laminae. Micro electro-mechanical systems (MEMS) have been recently proposed as sensing components of surface-mounted structural health monitoring systems, aimed to detect such delamination events in real-time. Here, we show some experimental results to get insights into the capability of MEMS accelerometers to detect delamination, and identify its magnitude. We also discuss a topology optimization-like approach to smartly deploy sensors over plates of complex geometry, so as to locate a delamination of unknown position.
9781466562752
micro electro-mechanical systems (MEMS); layered composites; delamination; structural health monitoring.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/666672
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