Markus Linke

Finite Element for the Static and Stability Analysis of Sandwich Plates

A finite element for the static and stability analysis of sandwich plates is formulated based on a three-layer sandwich model and its underlying differential equations. The Kirchhoff-Love hypothesis is assumed for the face sheets. The core is modelled by a three-dimensional material law neglecting the in-plane core stiffnesses. A stability analysis is performed on the basis of the geometric stiffness matrix considering the membrane prestresses of the face sheets.

Automating textile preforming technology for mass production of fibre-reinforced polymer (FRP) composites

Abstract: Because of their outstanding mechanical properties and low weight, fibre-reinforced composites are a suitable engineering material for many applications. The production of composite parts in high volumes can be realized by a combination of textile preforming processes and liquid composite moulding technologies. In this chapter, various textile preforming technologies are presented and discussed. This includes both single-step preforming processes (e.g., weaving, braiding, production of non-crimp-fabrics) and multi-step preforming processes (e.g., cutting, handling, binder technologies, sewing). Also, future trends for textile preforming are presented.

Virtual Production Systems

The use of simulation systems is of significant importance for companies in high-wage countries as the requirements of product- and process quality are generally higher than in low-wage countries due to conditions of the market. Since the implementation of simulation tools is not value-adding in the first place, the performance of virtual product development chain must therefore be continuously increased in terms of greater planning efficiency. Research in the field of virtual production systems therefore addresses the following issue.