223031012
/
DAMASK_EICMD
mirror of https://github.com/achalhp/DAMASK_EICMD.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

derivative of velocity with respect to resolved stress was flawed; now much better convergence of stress integration for nonlocal constitutive law

This commit is contained in:
Christoph Kords 2012-08-21 14:40:01 +00:00
parent ad7381cfdd
commit 222aed9f60
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
code/constitutive_nonlocal.f90
View File

@ -1418,7 +1418,9 @@ if (Temperature > 0.0_pReal) then
v(s) = sign(v(s),tau(s)) v(s) = sign(v(s),tau(s))
if (present(dv_dtau)) then if (present(dv_dtau)) then
dv_dtau(s) = 1.0_pReal / (tPeierls / meanfreepath_P + tSolidSolution / meanfreepath_S + 1.0_pReal / vViscous) & dv_dtau(s) = 1.0_pReal / (tPeierls / meanfreepath_P + tSolidSolution / meanfreepath_S + 1.0_pReal / vViscous) &
* (abs(v(s)) * (dtPeierls_dtau + dtSolidSolution_dtau + 1.0_pReal / (mobility * tauEff(s)*tauEff(s))) & * (abs(v(s)) * ( dtPeierls_dtau / meanfreepath_P &
+ dtSolidSolution_dtau / meanfreepath_S &
+ 1.0_pReal / (mobility * tauEff(s)*tauEff(s))) &
+ activationVolume_P / (kB * Temperature) * exp(-tauEff(s) * activationVolume_P / (kB * Temperature))) + activationVolume_P / (kB * Temperature) * exp(-tauEff(s) * activationVolume_P / (kB * Temperature)))
endif endif
@ -1437,6 +1439,9 @@ endif
write(6,'(a,/,12x,12(f12.5,1x))') '<< CONST >> tau / MPa', tau / 1e6_pReal write(6,'(a,/,12x,12(f12.5,1x))') '<< CONST >> tau / MPa', tau / 1e6_pReal
write(6,'(a,/,12x,12(f12.5,1x))') '<< CONST >> tauEff / MPa', tauEff / 1e6_pReal write(6,'(a,/,12x,12(f12.5,1x))') '<< CONST >> tauEff / MPa', tauEff / 1e6_pReal
write(6,'(a,/,12x,12(f12.5,1x))') '<< CONST >> v / 1e-3m/s', v * 1e3 write(6,'(a,/,12x,12(f12.5,1x))') '<< CONST >> v / 1e-3m/s', v * 1e3
if (present(dv_dtau)) then
write(6,'(a,/,12x,12(e12.5,1x))') '<< CONST >> dv_dtau', dv_dtau
endif
endif endif
#endif #endif