Abstract
Minimum weight designs of sandwich beams subject to moving load are performed as a function of prescribed load index, where the stiffness and strength constraints are both considered. The dynamic properties of sandwich beams are detected and validated through finite element simulation. Five different topologies are optimized and compared. Numerical results show that the topology of a hollow tube with sandwich walls comprising a lattice tetrahedral truss core is the most weight efficient, whereas the topology of a hollow tube with monolithic walls and a foam-filled core is the heaviest. The failure mechanisms that govern the optimal designs are also evaluated. The optimal results exhibit great sensitivity to the load moving velocity when it approaches the critical velocity of the sandwich beams. The optimization for sandwich beams under three-point bending is implemented for comparison and special dynamic characteristics of sandwich beams subject to moving load are discovered.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
