连续玄武岩纤维增强复合材料船体水下爆炸响应的数值仿真

运用有限元程序MSC.Dytran数值计算水下爆炸载荷作用下连续玄武岩纤维复合材料船体舱段结构的响应,采用层合板模型模拟纤维复合材料,选取一般耦合算法计算流体与结构的耦合效应,并将计算结果与E玻璃纤维复合材料船体仿真结果进行比较,分析2种材料船体结构压力时历曲线、破坏起始位置及破坏形式,得出结论:玄武岩纤维复合材料和E玻璃纤维复合材料船体底板在爆炸载荷的作用下起始破坏形式不同,玄武岩纤维的压缩强度和拉伸强度之比较高,在实际设计制造中更有优势。在船舶建造中可以使用连续玄武岩纤维复合材料替代玻璃纤维复合材料。

Numerical simulation of CBF materials ship structures response subjected to underwater explosion

The dynamic response of a ship section made of basalt-fiber laminate under underwater explosion was calculated by MSC.Dytran software. Fiber composite material was simulated by laminate model in MSC.Dytran software. General coupling method was used to simulate the fluid-structure interaction. By compared the response value with the results of ship section made of E-glass fiber reinforced composite,the authors analyzed time histories of pressure curves,initial positions and forms of the destroyed ship structures made of the two kinds of materials. The results show that forms of the destroyed ship structures made of basalt-fiber laminate and E-glass fiber laminate are different,the ratio of compressive strength to tensile strength of basalt-fiber composite is higher,consequently basalt-fiber composite is more suitable to design and construction,the basalt-fiber composite is capable of take the place of glass-composite in ship building field.