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;
2012-01-01
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.File | Dimensione | Formato | |
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