Liner Damage Analysis for Hydrogen Storage Vessels Subjected to Local Compressive Loads Using the Submodeling Method  

作　　者：Wen Liu Lele Zhang Geng Chen Yu Zhu Baofeng Ruan 

机构地区：[1]School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China [2]National International Science and Technology Cooperation Base,Beijing Jiaotong University,Beijing 100044,China [3]School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Lanzhou 730050,China

出　　处：《Chinese Journal of Mechanical Engineering》2024年第6期382-395,共14页中国机械工程学报(英文版)

基　　金：Supported by National Natural Science Foundation of China (Grant No. 52172353)。

摘　　要：When a hydrogen storage vessel is subjected to a local impact load, damage may occur in the liner and result in hydrogen leakage and other catastrophic consequences. When predicting liner damage of a hydrogen storage vessel using the finite element method(FEM), although large element size is required to achieve a desired computational efficiency, it oftentimes causes inaccuracy in the damage model. To remedy this problem, in this study a novel approach which calculates the material damage based on the GISSMO(Generalized Incremental Stress State dependent damage Model) damage model and employs a submodeling strategy is proposed. According to this approach,the global model is discretized to large elements to increase the efficiency, while the submodel is meshed to much smaller elements to accurately reflect the material damage. Employing the established approach and material parameters calibrated from a large set of notched aluminum alloy 5083 specimens, the liner damage of a type Ⅲ hydrogen storage vessel subjected to a local compressive load was simulated. This way, the study reveals how the characteristics of the stress and material damage interact with each other. In addition, the study also demonstrates that the proposed approach can be used as a viable means to evaluate the damage within hydrogen storage vessels.

关 键 词：Hydrogen storage vessel Compression Damage Submodel FEM 

分 类 号：TG1[金属学及工艺—金属学]