复合材料瓦楞板拉伸特性分析及试验验证

Tensile properties estimation for composite corrugated panel and experimental validation

复合材料瓦楞结构具有高强度、轻质、耐腐蚀、耐疲劳等特点,近年来在建筑幕墙、屋面系统及高档室内装饰中有广泛应用。本文结合复合材料层合板理论和周期均匀化理论,将复合材料瓦楞板等效为经典的正交各向异性板,提出了高精度的复合材料瓦楞板的拉伸、耦合、弯曲刚度,以及弯曲耦合刚度计算方法。最后,以半圆形和梯形两种波纹形状的复合材料瓦楞板为例,对本文提出的刚度计算方法进行了验证,FEM和试验结果表明,该方法高度高、形式简约、适用性强。

Composite corrugated structures has widely applications in curtain wall, roof system and interior decorations as their high strength,light weight, corrosion resistance and fatigue endurance abilities. Based on the composite laminate and periodic homogenization theories, the high-precision stiffness estimation method, has been presented in this paper for calculating the extension, coupling, bending stiffness and bending-coupling stiffness items. The performance of the approach presented in this paper has been demonstrated by both FEM and experimental validations using round and trapezoidal corrugation shapes of composites corrugated panel. The results indicate that this method with simple explicit expressions has high precisions and strong applicability.