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applying the geostatic eqilibrium

applying the geostatic eqilibrium

applying the geostatic eqilibrium

(OP)
hi all
this is an important problem for me.
i'm trying to estableshing an eqilibrium state in geostatic step and i've used the initial stesses cosedering the gravity acceleration=10m/sec2
and applying a gravity load in the same step=-10 this to let the programe calculate the soil weight throw the mass density which i put in the material property. but the run was aborted by error (need small increment time than especified )note; it was 1e-35.

the strange thing that
              when i changed the gravity value in the loading the material to be =-1(not-10) , and runed it again and by the same increment time , it runed and whith no errors.
could any one tell me
1-is it wright to put the gravity load=-1? and why?
2-is there any way to make the abaqus running with more begger time increment? or to make it more faster (for example by changing the used unites ?
3-what's your ideas about the resone of asking small time increment?


e.wan
     

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