The reflective optical multi-films with high damage thresholds are widely used in intense-light systems. Metasurfaces, which can manipulate light peculiarly, give a new approach to achieve highly films by single-layer configuration. In this study, metasurfaces, composed of silicon nanoholes, numerically investigated thresholds. These nanoholes confine the strongest electric field into air zone,...

Structural health monitoring is a process of evaluating and ensuring the safety and integrity of structural systems by converting sensor data into structural health monitoring information. The first and most important objective of structural health monitoring is to ascertain with confidence if damage is present or not. The idea is to characterize only the normal condition of a structure and the...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Antti Huhtala Name of the doctoral dissertation Model-based structural damage identification using vibration measurements Publisher School of Science Unit Department of Mathematics and Systems Analysis Series Aalto University publication series DOCTORAL DISSERTATIONS 30/2015 Field of research Mechanics Manuscript submitted 15 ...