Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4924465 | Journal of Sound and Vibration | 2017 | 13 Pages |
Abstract
Impact experiments on small-scale slabs made of concrete and aluminum were carried out. Wave motion radiated from the epicenter of the impact was recorded as voltage signals by resonant piezoelectric transducers. Numerical simulations of the elastic wave propagation are performed to simulate the physical experiments. The Hertz theory of contact is applied to estimate the force impulse, which is subsequently used for the numerical simulation. Displacements at the transducer positions are calculated numerically. A deconvolution function is obtained by comparing the physical (voltage signal) and the numerical (calculated displacement) experiments. Acoustic emission signals due to pencil-lead breaks are recorded, deconvolved and applied for localization using time reverse modeling.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Georg Karl Kocur,