Lightweight Structural Methods: for Increasing the Buckling Load and Fundamental Frequency of Thin-walled Structures

Aim is the investigation and evaluation of different possibilities of structural modifications to enhance the buckling stability. Further goal is a raise of the eigenfrequency in terms of increasing a structure?s fundamental frequency. Both of these aims should be achieved without mass increase and with either no or very small changes in geometry. Finally the manufacturing process roll forming is investigated in terms of stability of the resulting product and the effects of process-related residual stresses present in the final product.