Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5021651 | Composites Part B: Engineering | 2017 | 7 Pages |
Abstract
An ultrasonic technique is used to investigate the delamination caused by low velocity impact tests, on plates obtained by typical film stacking and compression molding techniques. The square specimens, 100*100Â mm, were impacted by a falling dart machine at five increasing impact energy values of 2Â J, 5Â J, 10Â J, 12Â J, and 15Â J. The delamination is investigated by the very commonly used Ultra Sound technique employing a linear phased array probe. The delaminated area is correlated with both the impact energy and the measured indentation depth. The results showed a threshold energy for the beginning of the internal damage. Moreover, a linear relationship between the delaminated area, the energy and the indentation depth was found.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Ilaria Papa, Valentina Lopresto, Giorgio Simeoli, Antonio Langella, Pietro Russo,