TY - CHAP A1 - Ucsnik, Stephan A. A1 - Gradinger, Rudolf A1 - Noster, Ulf A1 - Pahr, Dieter H. T1 - Finite element based optimization of a novel metal-composite-joint T2 - 1st EUCOMAS, European Conference on Materials and Structures in Aerospace, Conference Berlin, May 26 - 27, 2008  N2 - Aerospace and automotive industries employ three main techniques to set up joints between metal and fibre reinforced plastics parts (FRP); adhesive bonding, mechanical fastening with rives/bolts and a hybrid combination. A new joint technique has been developed to combine the two advantageous mechanisms form-closure and adhesion in a fibre-friendly way. Prior is established through metal structures (pins) which are perpendicularly welded onto metal surfaces with an arc-welding-process. They intrude into the FRP during lay-up and therefore set up a first connection. The composite-matrix is responsible for latter adhesive bonding and final form closure. Finite-element-analyses of cylindrically shaped joints are carried out to get detailed knowledge of the influence of parameters like pin-number, pin-position, pin-height, pin-form sleeve-geometry, and stiffness behaviour. Long calculation times of 3D-models lead to the introduction of a corresponding 2D-axisymmetric-model which is used to run parameter-studies within a reasonable time. For this novel technique the combination of fibre-friendly form closure and adhesive bonding of interface plays a major role. A well selected amount of vertical reinforcements, their placement and geometrical dimensions will lead to a stiffer joint. Goal is to minimize fibre-deletion and overlap length to improve load-transfer and joint-strength, to reduce weight in high-strength-applications as well as the avoidance of safety rivets. Y1 - 2008 SN - 0083-5560 SP - 371 EP - 379 PB - VDI-Verlag CY - Düsseldorf ER - TY - JOUR A1 - Kettner, Michael A1 - Noster, Ulf A1 - Kilian, Helmut A1 - Gradinger, Rudolf A1 - Kuehlein, Wolfgang A1 - Drevenstedt, Armin A1 - Stadler, Franz A1 - Ladstaetter, Elisabeth A1 - Lutz, Andreas T1 - The InnMag project - Processing Mg for civil aircraft application JF - Advanced Engineering Materials N2 - In the context of the “InnMag” project, partners from industry and science are co-operating to investigate the issues involved in adapting established production processes to the material Mg. The project's aim is to further the deployment of Mg interior parts in civil aircraft. The project covers every production step, from alloy selection, Mg ingot melting, alloying, direct chill casting, extruding, machining, surface treatment and component assembly. This paper discusses the project's targets and the results arrived at so far, particularly in the areas of direct chill casting and extrusion. Y1 - 2007 U6 - https://doi.org/10.1002/adem.200700143 VL - 9 IS - 9 SP - 813 EP - 819 PB - Wiley ER -