Mishra Rajesh, Behera Bijoy Kumar, Mukherjee Sayan, Petru Michal, Muller Miroslav
Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic.
Department of Textile & Fiber Engineering, Indian Institute of Technology Delhi, Delhi 110016, India.
Polymers (Basel). 2021 Feb 9;13(4):517. doi: 10.3390/polym13040517.
The principal objective of the work is to compare among carbon-glass filament wound epoxy matrix hybrid composites with a different fiber ratio made by robotized winding processes and optimize the geometry suitable for the Rocket Propelled Grenade Launcher. ANSYS based finite element analysis was used to predict the axial as well as radial compression behavior. Experimental samples were developed by a robot-controlled filament winding process that was incorporated with continuous resin impregnation. The experimental samples were evaluated for the corresponding compressional properties. Filament wound tubular composite structures were developed by changing the sequence of stacking of hoop layers and helical layers, and also by changing the angle of wind of the helical layers while keeping the sequence constant. The samples were developed from carbon and glass filaments with different carbon proportions (0%, 25%, 50%, 75%, and 100%) and impregnated with epoxy resin. The compressional properties of the tubular composites that were prepared by filament winding were compared with the predicted axial and radial compressional properties from computational modelling using the finite element model. A very high correlation and relatively small prediction error was obtained.
这项工作的主要目标是比较通过机器人缠绕工艺制造的具有不同纤维比例的碳-玻璃纤维缠绕环氧基混合复合材料，并优化适合火箭推进榴弹发射器的几何形状。基于ANSYS的有限元分析用于预测轴向和径向压缩行为。实验样品通过结合连续树脂浸渍的机器人控制纤维缠绕工艺制备。对实验样品的相应压缩性能进行了评估。通过改变环向层和螺旋层的堆叠顺序，以及在保持顺序不变的情况下改变螺旋层的缠绕角度，开发了纤维缠绕管状复合结构。样品由具有不同碳比例（0%、25%、50%、75%和100%）的碳和玻璃纤维制成，并浸渍环氧树脂。将通过纤维缠绕制备的管状复合材料的压缩性能与使用有限元模型的计算建模预测的轴向和径向压缩性能进行了比较。获得了非常高的相关性和相对较小的预测误差。
