Improved strategies for the load-bearing capacity of aluminum-PVC foam sandwich floors of a high-speed train

For high-speed trains (HSTs), interface failures often occur in their aluminum-PVC foam sandwich floor, the service life of which can affect the maintenance economy significantly. In this study, a floor model considering crushable foam layer and cohesive element was implemented to validate its bending behavior, with which the load-bearing capacity of actual floor structures under different loading conditions was analyzed. Accordingly, two...