Open AccessStress Analysis of the Circular Pier Anti-collision Box Made of Sandwich Plate with Stiffening Rib
Author(s) -
Wenfang Liu,
Shan Cheng-lin
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/746/1/012026
Subject(s) - stiffening , structural engineering , pier , rib cage , deformation (meteorology) , stress (linguistics) , collision , materials science , mechanics , composite material , engineering , physics , computer science , linguistics , philosophy , computer security
The pier anti-collision box made of steel-polyurethane sandwich plate with stiffening ribs can withstand greater impact force. In order to ascertain the influence of stiffening ribs to anti-collision box, the static equivalent method is adopted to numerically calculate the stress and impact depth of the anti-collision box in the conditions of no stiffening rib and the different forms and amount of stiffening ribs. The results show that it can reduce the stress and deformation of anti-collision box to set vertical or horizontal stiffening rib separately, and the effect of the former is much better than the latter, but the decrease degree of vertical stress is different from horizontal stress. The stiffening rib in the box should not be too many; especially horizontal rib and vertical rib should be considered mainly. The anti-collision box with horizontal rib and vertical rib is mainly to reduce collision deformation; however, it can reduce little than the box with only vertical rib in the aspect of stress.