damage detection in vibrating composites using MEMS

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.

Keywords:

health monitoring , micro -electro-mechanical systems MEMS , composite structures , damage/cracking