Optimization of carbon fiber usage in Type 4 hydrogen storage tanks for fuel cell automobiles

摘要: Abstract Finite element (FE) analysis of a filament wound 700-bar compressed hydrogen storage Type 4 tank is presented. Construction the FE model was derived from an initial netting to determine optimal dome shape, winding angle, and helical hoop layer thicknesses. The then used predict performance composite subject operating requirements design assumptions, provide guidance for optimization. Variation angle thickness in section incorporated model. minimum thicknesses needed assure structural integrity tank. also examined use “doilies” reinforce boss sections tanks reduce number layers around cylindrical results analyses showed that doilies reduces stresses near end but at shoulder are not affected. A new integrated end-cap proposed section. With end-cap, high stress points shift