Numerical, Experimental and Analytical Correlation for Predicting the Structural Behavior of Composite Structures under Impact. (2016)

• Record Type: Journal Article
• Authors: Di Caprio, F.; Langella, A.; Lopresto, V.; Caprino, G.
• Is Part Of: Procedia engineering. Volume 167(2016)
• Page Start: 80
• Page End: 87
• Publication Date: 2016
• Subjects: Composite Material -- Impact analysis -- Finite elements analysis -- Experimental tests; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2016.11.672
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: In the present work, numerical, experimental and analytical results regarding impact events on composite structure are presented. The test case consists in a classic 24 plies CAI specimen (100×150 mm) subjected to 10 J impact. The work can be divided into two phases. The first phase is finalized to the definition of a procedure able to provide a robust numerical model, which can simulate accurately the structural response of composite plates subjected to impact events. At this phase, the numerical results are compared with analytical ones. In the second phase, both inter- and intra-lamina failure are considered. Regarding the inter-laminar failure, an experimental-numerical procedure is defined in order to set the right parameters related to cohesive behaviour. For both phases, trade-off analyses on the main numerical parameters are performed. All numerical results are compared with experimental ones in terms of both energy balance and damaged area.