Investigation and Simulation of Mechanics of Solid Beam versus Sandwich Beams with Different Core Material

摘要

A solid steel beam versus sandwich beams with varied core material between polyamide, epoxy and wood was simulated numerically and analyzed theoretically to realize the difference between their mechanics. On the other hand, the length 300 mm, width 20 mm, total thickness 16 mm, face thickness 3 mm, core thickness 10 mm and steel faces material were kept constant. The concerned mechanics were under a bending moment, an axial load and a combination of both loadings. The results indicate that the different stresses types of bending stress, normal stress and these two stresses combined can be significantly varied due to a change in the flexural rigidity and the transformation factor, which can be done via utilization sandwich beam advantages over a solid beam having the same dimensions. Also, with a lower variance degree, the change in stresses values can be done by using sandwich beams with a contrastive core material.