TY - GEN A1 - Santhanakrishnan Balakrishnan, Venkateswaran A1 - Seidlitz, Holger A1 - Ambrosio, Marcello A1 - Schuhmann, Tilo T1 - Study on the Quality of Quasi-Isotropic Composite Laminates Containing a Circular Hole T2 - Journal of Materials Science Research N2 - Composite structures used in modern engineering applications are often subjected to circular holes in order to join with metal components via riveting, bolting or pinning joints. These design based holes will interrupt the force flux in the direction of the fibers and create high stress concentrations near the notched area. Objective of the project is to understand the quality of the quasi-isotropic composite laminates ([45°, -45°, 0°, 90°]S) containing circular hole. To achieve this objective, a 3-phase portal milling machine and a 5kW continuous wave (cw) CO2 laser system were used to produce the circular holes in the composite laminates. The processing parameters for both the processes are varied to understand its influence. The quality of the circular hole produced by these methods are further investigated and compared in order to arrive at the optimum processing parameters for the given quasi-isotropic composite laminates. The hole qualities were evaluated by means of delamination factor caused by milling; cone angle, matrix evaporation for cw-CO2 laser system. For further comparisons, the optimal parameter combinations of both methods were selected for a tensile test according to the standard ASTM D5766-2002. KW - circular hole KW - composite KW - CO2 laser KW - drilling KW - fiber reinforced polymer KW - FRP KW - notch Y1 - 2017 U6 - https://doi.org/10.5539/jmsr.v6n4p67 SN - 1927-0593 SN - 1927-0585 VL - 6 IS - 4 SP - 67 EP - 78 ER - TY - CHAP A1 - Schleuß, Leander A1 - Seidlitz, Holger A1 - Fritzsche, Sebastian A1 - Schulze, Marcus A1 - Michailov, Vesselin A1 - Schuhmann, Tilo T1 - Gewichtsreduzierte Multi-Material-Bauweisen mit Organoblechen T2 - Tagungsband, 15. Chemnitzer Textiltechnik-Tagung, Chemnitz, Germany, 31.05-01.06.2016 Y1 - 2016 SN - 978-3-945479-06-3 SP - 112 EP - 119 PB - Technische Universität Chemnitz, Professur Fördertechnik CY - Chemnitz ER -