We present a methodology to monitor the state of crack-containing composite structures subjected to time-varying loadings. Adopting a simple test set-up, we focus on slowly varying loading conditions and show that low-cost commercial off-the-shelf MEMS accelerometers can display a noteworthy sensitivity to the length of a growing crack. Through comparison with finite element simulations, we also assess the robustness and accuracy of the proposed methodology.

Damage detection in vibrating composites using MEMS

MARIANI, STEFANO;CAIMMI, FRANCESCO;EFTEKHAR AZAM, SAEED;BRUGGI, MATTEO;
2011

Abstract

We present a methodology to monitor the state of crack-containing composite structures subjected to time-varying loadings. Adopting a simple test set-up, we focus on slowly varying loading conditions and show that low-cost commercial off-the-shelf MEMS accelerometers can display a noteworthy sensitivity to the length of a growing crack. Through comparison with finite element simulations, we also assess the robustness and accuracy of the proposed methodology.
Proceedings of 1st International Conference on Urban Construction in the Vicinity of Active Faults
health monitoring; micro-electro-mechanical systems (MEMS); composite structures; damage/cracking
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/632817
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