纤维增强橡胶复合材料软体系统船撞吸能试验与模拟

In view of the shortcomings of traditional bridge anti-collision measures, such as high cost, high difficult of repair, and limited reduction of ship collision force, which is easy to cause ship damage, this article proposes a bulk-filled fiber-reinforced rubber soft collision avoidance system to explore the deformation and energy absorption performance of the device under impact loading. The horizontal impact tests of bare pier and pier with fiber-reinforced rubber soft body system are carried out by using ship bow model. The nonlinear finite element model of the system is established to numerically analyze its failure process, and the results are compared with the experimental results. The test results show that the fiber reinforced soft body has obvious advantages in deformation recovery and damage prevention. The results of numerical analysis show that the reduction rate of impact force of fiber reinforced rubber soft body with diameter of 300 mm, 400 mm and 500 mm is 25.87%, 42.08% and 58.77% respectively. The soft body diameter has a great influence on the impact energy absorption performance.