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https://hdl.handle.net/10316/107158
Title: | Numerical Study on the Formability of Metallic Bipolar Plates for Proton Exchange Membrane (PEM) Fuel Cells | Authors: | Neto, Diogo M. Oliveira, Marta C. Alves, José L. Menezes, Luís F. |
Keywords: | numerical simulation; stamping; formability; metallic bipolar plate; fuel cells | Issue Date: | 2019 | Publisher: | MDPI | Project: | project MATIS (CENTRO-01-0145-FEDER-000014) PTDC/EMS-TEC/0702/2014 (POCI-01-0145-FEDER-016779) PTDC/EMS-TEC/6400/2014 (POCI-01-0145-FEDER-016876) by UE/FEDER through the program COMPETE 2020. |
Serial title, monograph or event: | Metals | Volume: | 9 | Issue: | 7 | Abstract: | Thin stamped bipolar plates (BPPs) are viewed as promising alternatives to traditional graphite BPPs in proton exchange membrane fuel cells. Metallic BPPs provide good thermal/electrical conductivity and exhibit high mechanical strength, to support the loads within the stack. However, BPPs manufactured by stamping processes are prone to defects. In this study, the e ect of the tool’s geometry on the thin sheet formability is investigated through finite element simulation. Despite the broad variety of flow field designs, most of BPPs comprise two representative zones. Hence, in order to reduce the computational cost, the finite element analysis is restricted to these two zones, where the deformation induced by the stamping tools is investigated. The channel/rib width, the punch/die fillet radii, and the channel depth are the parameters studied. The analysis is conducted for a stainless steel SS304 with a thickness of 0.15 mm. The results show that the maximum value of thinning occurs always in the U-bend channel section, specifically in the fillet radius of the die closest to the axis of revolution. | URI: | https://hdl.handle.net/10316/107158 | ISSN: | 2075-4701 . |
DOI: | 10.3390/met9070810 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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