摘要
本文提出了一种基于三维激光扫描系统与ABAQUS二次开发的纤维缠绕储氢气瓶逐层更新建模方法。通过Python语言编写建模程序,将三维扫描仪获得的几何数据通过非均匀有理B样条进行拟合,结合缠绕软件生成的缠绕角度,导入ABAQUS中生成有限元模型。采用Hashin准则进行失效分析,通过水压爆破试验结果与之对比,验证有限元模型的准确性,并探究纤维缠绕储氢气瓶的失效机理。结果表明,使用逐层更新建模方法建立的有限元模型爆压预测的爆压及应变响应与试验结果的误差在5%以内,且预测的爆破位置及失效模式与试验结果一致。
In this paper, a layer-by-layer updating modeling method for filament-wound hydrogen storage cylinder based on 3D laser scanning system and ABAQUS is presented. By programming in Python, the geometric data obtained from the 3D scanner are fitted by non-uniform Rational B spline, and combined with the winding angle generated by the winding software to generate the finite element model in ABAQUS. The validity of the finite element model was verified by comparing the results of hydraulic blasting test with Hashin criterion, and the failure mechanism of filament-wound hydrogen storage cylinders was explored. The results show that, the blasting pressure and strain response predicted by the finite element model are within 5% of the test results, and the predicted blasting location and failure mode are consistent with the test results.
作者
张桂明
宋春雨
祖磊
张骞
陈世军
扶建辉
李德宝
耿洪波
ZHANG Guiming;SONG Chunyu;ZU Lei;ZHANG Qian;CHEN Shijun;FU Jianhui;LI Debao;GENG Hongbo(School of Mechanical Engineering,Hefei University of Technology,Hefei 230009,China;Inner Mongolia Aerospace Honggang Machinery Factory,Hohhot 010000,China)
出处
《复合材料科学与工程》
CAS
北大核心
2023年第2期60-66,共7页
Composites Science and Engineering
基金
国家自然科学基金项目(52175311,12102115,52005446)。
关键词
复合材料储氢气瓶
逐层更新方法
渐进失效
损伤准则
composite hydrogen cylinder
layer-by-layer updating method
progressive failure
damage criterion
