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Optical deformation analysis of the failure behavior of fiber reinforced polymers caused by laser processing

: Rose, Michael; Fürst, Andreas; Pap, Jozsef-Sebastian; Klotzbach, Annett; Hauptmann, Jan; Jansen, Irene; Beyer, Eckhard

Fulltext urn:nbn:de:0011-n-3700616 (2.5 MByte PDF)
MD5 Fingerprint: 4318ccc0ca8dcc1d9ba3e2d54e5e53e9
Created on: 12.12.2015

20th International Conference on Composite Materials, ICCM 2015. Proceedings. Online resource : 19-24 July 2015, Copenhagen, Denmark
Copenhagen, 2015
Paper 1206-1, 11 pp.
International Conference on Composite Materials (ICCM) <20, 2015, Copenhagen>
Deutsche Forschungsgemeinschaft DFG
SFB 639;
Textile-reinforced composite components for function-integrating multi-material design in complex lightweightapplications
Conference Paper, Electronic Publication
Fraunhofer IWS ()
Laser; cutting; CFRP; GFRP; HAZ; mechanical properties; tensile testing; FEM

Near net shape preforms with a minimum of material consumption are required to increase the acceptance of fiber reinforced polymers (FRP) in the industry. This should be accompanied by appropriate, fast and flexible processes. The remote laser process expands the area of possible processing strategies, wherefore the laser can be a tool for the future. However the development of remote laser processing is accompanied with the understanding of the interaction between tool and material as well as the influence of laser irradiation to the failure behavior of FRP, to which this paper contributes. A tensile testing procedure with an adapted specimen is introduced. Hence, the testing procedure is able to correlate the failure mode of inter fiber fracture as a function of laser cutting parameters. The investigations are accompanied by an optical deformation analysis to clarify the geometrical influences of the laser cutting contour.