Conceptual sandwich-sandwich-steel joint design for lightweight rail vehicle

Sammanfattning: In order to find a feasible solution for a joining method of a sandwich side-wall, a sandwichfloor and a steel underbody of a railway vehicle, conceptual joint designs have been devel- oped by using structural optimization software.  It is shown that the joints are capable of carrying the loads assumed to act on the structure but that  several improvements to theanalysis needs to be done to assure a safe design.