Experimental analysis of ice sphere impacts on unidirectional carbon/epoxy laminates. (October 2016)

• Record Type: Journal Article
• Authors: Pernas-Sánchez, J.; Artero-Guerrero, J.A.; Varas, D.; López-Puente, J.
• Is Part Of: International journal of impact engineering. Volume 96(2016:Oct.)
• Page Start: 1
• Page End: 10
• Publication Date: 2016-10
• Subjects: Ice behaviour -- Composite laminate -- Impact -- Experimental -- Failure mechanism; Impact -- Periodicals; Shock (Mechanics) -- Periodicals; Impact -- Périodiques; Choc (Mécanique) -- Périodiques; Impact; Shock (Mechanics); Periodicals; 620.1125
• DOI: 10.1016/j.ijimpeng.2016.05.010
• Languages: English
• ISSNs: 0734-743X

Abstract

Highlights: The main failure mechanism that appears in the composite panels is delamination. Most of the panels exhibit no-delaminated or almost full delaminated area. A dimensionless variable that describes the influence of parameters is presented. Abstract: This work analyses the behaviour of carbon/epoxy unidirectional laminates subjected to high velocity impacts of ice spheres. To this end, ice projectiles were launched against composite laminates in a wide range of velocities ( 50 − 250 m / s ). Two different ice diameters (40 and 50 mm ) and two laminate thicknesses (4 and 6 mm ) were considered. The internal damage was measured using both destructive and non-destructive techniques, which allow an accurate quantification of the delaminated area. Finally the influence of the different parameters considered on the damage of the laminate is analysed by means of a dimensionless variable.