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. 2023 Sep 10;15(18):3716.
doi: 10.3390/polym15183716.

Characterization of Polymeric Composites for Hydrogen Tank

Waseem Gul  1 , Yu En Xia  1 , Pierre Gérard  2 , Sung Kyu Ha  1
Affiliations

Characterization of Polymeric Composites for Hydrogen Tank

Waseem Gul et al. Polymers (Basel). .

Abstract

Carbon neutrality has led to a surge in the popularity of hydrogen tanks in recent years. However, designing high-performance tanks necessitates the precise determination of input material properties. Unfortunately, conventional characterization methods often underestimate these material properties. To address this limitation, the current research introduces alternative designs of ring tensile specimens, which enable accurate and reliable characterization of filament-wound structures. The advantages and disadvantages of these alternative designs are thoroughly discussed, considering both numerical simulations and experimental investigations. Moreover, the proposed ring tensile methods are applied to characterize thermoplastic composites for hydrogen storage tanks. The results indicate that the mechanical strengths and stiffness of carbon fiber-reinforced thermoplastic Elium® 591 composites closely match those of epoxy-based composites. This newfound accuracy in measurement is expected to contribute significantly to the development of recyclable hydrogen tanks.

Keywords: ASTM D2290; Elium® 591; carbon neutrality; filament winding; hoop strength; hydrogen tank; polymer composite; stress concentration; thermoplastic resin.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Research and Development flow chart of the hydrogen tank.
Figure 2
Figure 2
(a) Failure mode of the notched specimen (b) Non-uniform Stress distribution in the gauge area of the notched specimen.
Figure 3
Figure 3
Winding of the tensile specimen (a) winding on the flat plate (b) winding on the circular mandrel.
Figure 4
Figure 4
Design comparison of tensile specimen for characterization of the filament wound structure.
Figure 5
Figure 5
(a) RSP-3 specimen without tabs (b) Mandrel for RSP-3-1 (c) Mandrel for RSP-3-2 (d) Thickness Variations in the gauge section.
Figure 6
Figure 6
(a) Geometric model (b) Finite element model of ring tensile specimen.
Figure 7
Figure 7
Hoop tensile Stress distribution in the gauge section of conventional notched design (RSP-1) and proposed designs (RSP-2 and RSP-3).
Figure 8
Figure 8
Effect of Tabs; (a,b) RSP-2 Design; (c,d) RSP-3 Design.
Figure 9
Figure 9
Filament winding process with thermoplastic resin (Elium® 591).
Figure 10
Figure 10
Ring Tensile Specimen Manufacturing Process.
Figure 11
Figure 11
Configuration of manufactured Specimen.
Figure 12
Figure 12
(a) Split disk for RSP-1 and 2. (b) Split disk for RSP-3. (c) Load Displacement curves.
Figure 13
Figure 13
(a) Failure mode of RSP-1 specimen (b) Failure mode of RSP-2 specimen (c) Failure mode of RSP-3-1 specimen (d) Failure mode of RSP-3-2 specimen (e) Failure mode of FSP-1 specimen.
Figure 14
Figure 14
Hoop tensile strength comparison of Carbon-H2550/Elium® 591 and Carbon-H2550/epoxy-SE-700A specimen.
Figure 15
Figure 15
(a) Elastic Modulus values with standard deviation (b) Stress-strain curve of Carbon-Epoxy and Carbon-Elium specimens.
See this image and copyright information in PMC

References

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