A finite element numerical model for carbon/epoxy woven laminates has been used to predict residual velocity and damaged area when subjected to high impact velocities. Experiments using a gas gun were conducted to investigate the impact process and to validate the model, measuring the two variables previously indicated. A morphology analysis was also made to investigate the different breakage mechanisms that appear during the penetration process. The influence of the impact velocity and obliquity has been studied using the numerical tool, in a wide range of impact velocities and considering two impact angles, 0 and 45 .
Experimental and numerical analysis of normal and oblique ballistic impacts on thin carbon/epoxy woven laminates
Composites, Part A: Applied Science and Manufacturing ; 39 , 2 ; 374-387
2008
14 Seiten, 17 Bilder, 3 Tabellen, 35 Quellen
Aufsatz (Zeitschrift)
Englisch
Ballistik , Beschussprüfung , bruchmechanische Prüfung , Bruchmechanismus , carbonfaserverstärkter Kunststoff , Computer-Simulation , C-Scan-Verfahren , Delaminierung (Schichtablösung) , Druckgeschwindigkeit , Dünnschichttechnik , Epoxidharz , gewebeverstärkter Kunststoff , Laminat , Morphologie (Körper) , numerische Analyse , Polymermatrix-Verbundwerkstoff , Projektil (Geschoss) , Schadensanalyse , Simulationsmodell , Stoßbeanspruchung , Ultraschallprüfung
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