On the Design, Characterization and Simulation of Hybrid Metal-Composite Interfaces
- PDF / 1,516,012 Bytes
- 19 Pages / 439.642 x 666.49 pts Page_size
- 99 Downloads / 206 Views
On the Design, Characterization and Simulation of Hybrid Metal-Composite Interfaces R. Kießling1 · J. Ihlemann1 · M. Pohl2 · M. Stommel2 · C. Dammann3 · R. Mahnken3 · M. Bobbert4 · G. Meschut4 · F. Hirsch5 · M. K¨astner5
Received: 5 August 2016 / Accepted: 15 August 2016 © Springer Science+Business Media Dordrecht 2016
Abstract Multi-material lightweight designs are a key feature for the development of innovative and resource-efficient products. In the development of a hybrid composite, the interface between the joined components has to be considered in detail as it represents a typical location of the initialization of failure. This contribution gives an overview of the simulative engineering of metal-composite interfaces. To this end, several design aspects on the microscale and macroscale are explained and methods to model the mechanical behavior
R. Kießling
[email protected] M. Pohl [email protected] C. Dammann [email protected] G. Meschut [email protected] M. K¨astner [email protected] 1
Solid Mechanics, Faculty of Mechanical Engineering, Technische Universit¨at Chemnitz, Reichenhainer Straße 70, 09126 Chemnitz, Germany
2
Plastics Technology, Faculty of Mechanical Engineering, Technische Universit¨at Dortmund, Leonhard-Euler-Straße 5, 44227 Dortmund, Germany
3
Engineering Mechanics, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany
4
Laboratory for Material and Joining Technology, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany
5
Institute of Solid Mechanics, Technische Universit¨at Dresden, 01062 Dresden, Germany
Appl Compos Mater
of the interface within finite element simulations. This comprises the utilization of cohesive elements with a continuum description of the interface. Likewise, traction-separation based cohesive elements, i.e. a zero-thickness idealization of the interface, are outlined and applied to a demonstration example. Within these finite element simulations, the constitutive behavior of the connected components has to be described by suitable material models. Therefore, inelastic material models at large strains are formulated based on rheological models. Keywords Hybrid composites · Interface · Cohesive zone · Finite element simulation
1 Introduction Hybrid structures combine different classes of materials to exploit the advantageous properties of each constituent [3, 23, 26]. Such components typically feature low weight and high strength. They can be adapted to specific requirements of different applications and allow for function integration. As shown in the scanning electron micrograph of Fig. 1, hybrid structures considered in this contribution consist of a metallic component and a fiber reinforced polymer (FRP). There exist established technologies like bolted or riveted joints where the connection is reached by an additional process step in combination with unintended material damage. More promising solutions are approaches that use an interfacial interlock of the different materials
Data Loading...
