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A coupled theory for diffusion of hydrogen and large elastic-plastic deformations of metals

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Academic year: 2021

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Figure  3-1:  Schematic  of the  blunt-crack  geometry  and  boundary  conditions.  On  the  outer  surface  and  the crack  face  we  either  prescribe  a  constant  lattice  chemical  potential  pL  or  a  zero  lattice  hydrogen  flux  j  =  0.
Figure  3-2:  (a)  Normalized  hydrostatic  stress  o-h/Y  (left  scale)  and  normalized  volumetric  elastic  strain trE/co  (right  scale),  ahead  of  the  crack  tip  (0  =  0-)  at  t  =  tf  =  130  s  compared  to  the  result  of  Krom et  al
Figure  3-4:  Lattice  chemical  potential  pL  ahead  of the  crack  tip  (0  =  00) of  tf  =  130 s
Figure  3-5:  Normalized  lattice  hydrogen  concentration  CL/CLO  ahead  of the  crack  tip  (0  00)  at  the  end of loading  (t  =  tf)  for  different  load  times  compared  to  the  results  of  Krom  et  al
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