CAJ | 학술논문

研究了平面阶跃冲击波作用下沉浸无限长复合材料圆柱壳的瞬态响应.首先推导基于Flugge薄壳理论的复合材料圆柱壳的控制运动方程,然后采用反射尾流虚源法建立流体-结构的相互作用,最后采用有限差分法来求解平面冲击波作用下无限长复合材料圆柱壳的控制运动微分方程.详细考察了复合材料纤维方向和壳的半径对复合材料圆柱壳的无因次中面应变、第0阶模态径向位移和第1阶模态径向速度的影响.
연구료평면계약충격파작용하침침무한장복합재료원주각적순태향응.수선추도기우Flugge박각이론적복합재료원주각적공제운동방정,연후채용반사미류허원법건립류체-결구적상호작용,최후채용유한차분법래구해평면충격파작용하무한장복합재료원주각적공제운동미분방정.상세고찰료복합재료섬유방향화각적반경대복합재료원주각적무인차중면응변、제0계모태경향위이화제1계모태경향속도적영향.
The transient dynamic response of a submerged laminated composite cylindrical shell with infinite length subjected to a step plane shock wave was investigated. The governing differential equations of motion for laminated composite cylindrical shell were derived on the basis of Flugge thin shell theory. The reflected-afterflow virtual-source technique was used to simulate the fluid-structure interaction. The center difference method was adopted to compute the transient responses of the composite cylindrical shells under plane shock waves. The influences of fiber angle, and shell radius upon the dimensionless mid-surface strain, 0 th mode radial displacement and 1 st mode radial velocity of shells were discussed.