Low velocity impact damage characteristics of Z-fiber reinforced sandwich plates - An experimental study

摘要

Experimental results related to the initiation of damage in Z-fiber truss reinforced sandwich panels are presented. ^Two different orientations of pin angles are considered. ^A pendulum-type impactor is used to impart very low levels of impact energy. ^Threshold energy levels at which the observable damage initiation occurs are determined. ^NDE studies conducted prior to the impact are compared with the post-impact status of the panels for assessing the type and magnitude of the damage. ^Effects specific to the impact phenomena are studied by comparing the load displacement characteristics. ^(Author)