考虑张力制度影响的碳纤维缠绕容器爆破性能预测与仿真插件开发

Bursting performance prediction of carbon filament-wound vessel and plug-in tool development considering winding tension systems

针对缠绕张力对碳纤维缠绕容器承载性能影响规律尚不明确的问题,基于ABAQUSTM软件开发了一套用户友好、自主选择性好且高效的插件工具,能够自动化完成模型建立和相关设置工作,实现了考虑多种缠绕工艺参数的容器结构精细化建模。基于该插件工具,对碳纤维缠绕容器在不同缠绕张力制度下的爆破性能进行了参数化分析,通过爆破试验验证了数值模型的有效性。对于直径为Ф155 mm和Ф474 mm的容器,90 N-80 N-60 N和200 N-180 N-160 N逐层减小的缠绕张力制度将提高容器的爆破性能;对于20 N和30 N递减张力制度,直径Ф474 mm容器的爆破压强随着内层张力的减小逐渐降低,当张力递减幅度增加时,容器的爆破压强趋于稳定,其下降幅度由16.79%减小到3.05%。此外,容器封头段与筒身段过渡区域的应变水平最高,为碳纤维缠绕容器的薄弱位置。

Aiming at the problem that the influence of winding tension on the bearing performance of carbon filament-wound vessel is not clear,based on ABAQUS TM software,a set of user-friendly,self-selective and efficient plug-in tool was developed.In comparison to traditional modeling approach,the plug-in tool enables to automatically and efficiently accomplish the model setup.Based on the plug-in tool,the parametric analysis on the bursting performance of carbon filament-wound vessel under different winding tension systems was carried out.The effectiveness of the numerical model was verified by bursting test.For the vessels with diameters ofФ155 mm andФ474 mm,the layer-by-layer degression winding tension systems,including 90 N-80 N-60 N and 200 N-180 N-160 N,will improve the burst performance of the vessel.For 20 N or 30 N degression tension systems,the burst pressure of vessel withФ474 mm diameter gradually decreases with the reducing inner tension.When the degression amplitude of the tension system increases,the burst pressure of the vessel tends to be stable,and the decreasing proportion declines from 16.79%to 3.05%.Moreover,the strain level in the transition area between the dome and cylinder parts is the highest,indicating the weak position of carbon filament-wound vessel.