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International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments

B. P. Somerday
B. P. Somerday
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P. Sofronis
P. Sofronis
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ASME Press
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This work is part of a multi scale computational and experimental approach in which first principle modelling, nanoscale experiments and continuum simulations are combined in order to represent hydrogen induced degradation and cracking. Nanomechanical testing in air and under electrochemical hydrogen charging conditions are carried out on μm sized single crystal cantilevers of Fe3%Si. Finite element simulations of the cantilever beam testing are performed to obtain the cohesive parameters best representing the yield point of the experimental load displacement curves. The cantilevers tested under hydrogen influence show brittle as well as increased plastic behavior as compared to testing in air....

Material and Experimental Method
Finite Element Simulation with Cohesive Zone Elements
Results and Discussion
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