Composite Layer Design Using Classical Laminate Theory for High Pressure Hydrogen Vessel (Type 4)

As air pollution becomes more severe, the use of clean energy in vehicles is an inevitable requirement and it is leading the development of automotive industries. Especially, hydrogen-fueled vehicles require safe and lightweight high pressure storage vessels to carry enough amounts of hydrogen gas. To develop mechanically robust and lightweight high pressure vessel, it is of significance to establish design and manufacturing process for liners and carbon fiber reinforced plastics layers. In this study, to design a composite layer in a high pressure hydrogen vessel (Type 4), a calculation method of stress generated in each ply by applying the CLT (Classical Laminate Theory) is proposed. And based on the calculation method, we carried out the composite layer design in the hydrogen high pressure vessel (Type 4) that can satisfy the requirement for lightweightness and designed the thickness and the pattern of the composite layer with more accuracy than the netting theory and with more rapid than FEA.

Automated summary

As air pollution worsens, the demand for clean energy vehicles increases, leading to advancements in automotive industries. Hydrogen-powered vehicles, in particular, require safe and lightweight high-pressure storage vessels for hydrogen gas. This study proposes a calculation method using the Classical Laminate Theory to design a composite layer for a high-pressure hydrogen vessel (Type 4). The design aims to achieve lightweightness and provides more accurate thickness and pattern compared to netting theory and faster results than FEA.