Prof. Paolo Neri - Università di Pisa The course aims to present the use of Digital Image Correlation method in measuring the dynamics of mechanical structures

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Digital Image Correlation (DIC) is a full-field optical technique widely adopted to retrieve motion, deformation, and shape measurements in experimental mechanics. This technique has been traditionally used to investigate deformation and fracture processes, but, in recent years, its use was extended to the study of the 3D response of vibrating structures. The development of high-speed cameras made feasible the full-field analysis of highfrequencies phenomena. However, high-speed cameras are limited by the sensor resolution, which is lower than the resolution of conventional (i.e. not high-speed) cameras. An alternative approach is represented by using conventional cameras combined with down-sampling strategies. This approach allows greater sensor resolutions to be exploited under the limitation that the measured vibration signal is composed of a single harmonic component. In this course, a description of this measurement technique will be provided, exploring different possible acquisition setup to perform down-sampled DIC vibration measurements, from a theoretical and a practical point of view

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Presentazione orale - Presentazione report scritto

P.D.1-1 - Maggio