Session: CS-10-01 Recent Developments in Chinese Codes and Standards-1

Paper Number: 154168

154168 - Comparative Study of Layup and Solid Modeling of Composite Reinforced Pressure Vessel for Hydrogen Refueling Station 

Abstract: 

To enhance the energy storage density and service life of hydrogen station pressure vessels in China, Composite Reinforced Pressure Vessels (CRPVs) have become a focus of research. However, due to the unique properties of fiber materials and the complexity of their layup structures, the mechanical performance is significantly affected, and detailed simulation calculations are costly. To improve the simulation optimization design efficiency for subsequent CRPVs and facilitate the study of container fatigue, strength, and other performance characteristics, this paper develops layup models and simple solid models based on the structural and material parameters of a real 99MPa steel-liner hydrogen station pressure vessel. The models clearly define parameters such as fiber winding layer thickness, number of layers, and winding direction. The mechanical calculation results of both models are compared and analyzed under different operating conditions, and verified through strain testing. The results show that the layup model offers irreplaceable advantages in considering the complexity of composite materials' structures, but both models need further refinement to improve accuracy and stability under different loading conditions. The findings provide valuable insights for modeling and simulation optimization in the design of composite reinforced pressure vessels for hydrogen stations.

Keywords: Hydrogen storage; Fiber winding; Pressure vessel; Modeling Method

Presenting Author: Fang Ji China Special Equipment Inspection & Research Institute

Presenting Author Biography: Graduate student, School of Mechanical Engineering, Hunan University of Science and Technology
China Special Equipment Inspection & Research Institute interns

Authors:

Zhiwei Chen China Special Equipment Inspection & Research Institute
Haoyu Wu Hunan University of Science and Technology
Guangfu Bin Hunan University of Science and Technology
Xiaoliang Jia China Special Equipment Inspection & Research Institute
Fang Ji China Special Equipment Inspection & Research Institute