复合材料圆角面外受载仿真计算研究

Simulation Study of the Composite Curved Beam Under Out-of-plane Load

采用有限元方法,计算复合材料圆角面外受载的应力分布,预测圆角区的分层载荷、部位与破坏载荷,研究不同铺设方式对圆角区应力分布的影响,并针对工程实际中圆角经常出现的制造缺陷,如分层和富树脂,研究了制造缺陷对复合材料圆角应力分布的影响。结果表明,采用三维体元的有限元建模方法对圆角区的分层载荷、部位和破坏载荷的预测可靠,可用于工程实际。

Based on the FEM method, calculated the stress distribution of the composite curved beam under out- of-plane load, studied the influence of the stress distribution of the composite curved beam used different lay-up, predicted the delamination location, delamination load and failure load. This paper focused on the manufacturing defects often appearing in the actual engineering, such as delamination and resin-richstudies the influence of the stress distribution of the composite curved beam using different lay-up. The results show that the method reliable predicated the delamination location, delamination load and failure load, can be used in engineering practice.