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add J2 and camC return mapping algs. #16

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ewyser opened this issue Nov 8, 2023 · 9 comments
Open

add J2 and camC return mapping algs. #16

ewyser opened this issue Nov 8, 2023 · 9 comments
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ewyser commented Nov 8, 2023

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@ewyser ewyser self-assigned this Nov 8, 2023
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ewyser commented Nov 8, 2023

see cb9374f for J2

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ewyser commented Nov 8, 2023

J2return mapping under a finite deformation framework

J2_epII

@ewyser ewyser changed the title add J2and camCreturn mappings add J2and camC return mapping algs. Nov 8, 2023
@ewyser ewyser changed the title add J2and camC return mapping algs. add J2 and camC return mapping algs. Nov 8, 2023
@ewyser ewyser added the enhancement New feature or request label Nov 8, 2023
ewyser added a commit that referenced this issue Nov 9, 2023
@ewyser
first implementation of camC, see #16. still some wip
7f265fd
ewyser added a commit that referenced this issue Nov 11, 2023
@ewyser
new test + improvements, see #16
dbe557f
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ewyser commented Nov 11, 2023

pqSpace_camCYieldFun

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ewyser commented Nov 11, 2023

pqSpace_camCYieldFun

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ewyser commented Nov 11, 2023

add consistent definition of pt with the material's cohesion

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ewyser commented Nov 12, 2023

same shape parameters used, but discrepancies are noted, see below

pqSpace_camCYieldFunMod
modified cam-clay formulation

pqSpace_camCYieldFunGen
golchin formulation

should investigate why the two yield functions differs.

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ewyser commented Nov 12, 2023

differences in level sets are irrelevant, but the shape should be identical between the two formulation. errors should be fixed in golchin formulation

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ewyser commented Nov 12, 2023

errors could be find in the function camCYield(p,q,pc,pt,γ,M,α,β)

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ewyser commented Nov 12, 2023

no differences when pt = 0, see
pqSpace_camCYieldFunMod
pqSpace_camCYieldFunGen

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