[CIG-SHORT] plastic strain

[Brad Aagaard]

Birendra,

Amplifying what Charles said:

The strains on the boundary will be zero if there is zero displacement 
on the boundary, but the strains inside the cells may be nonzero. The 
strains in the output come from the integration points, and 
CellFilterAvg gives the average over the integration points in the cell.

Regards,
Brad

On 11/06/2014 02:12 PM, Charles Williams wrote:
> Hi Birendra,
>
> 1.  total_strain is equal to elastic_strain + plastic_strain.  Look
> in the manual chapter on material models to see how things are set
> up. 2.  Strain always honors boundary conditions; however, you can
> get cases where the total strain is zero, but there is still plastic
> strain (e.g., elastic and plastic strains could cancel under certain
> conditions).
>
> Cheers, Charles
>
>
>> On 7/11/2014, at 10:52 am, Birendra jha <bjha7333 at yahoo.com>
>> wrote:
>>
>> Hi
>>
>> 1. Does total_strain include plastic_strain, or is it only the
>> elastic part? 2. Does plastic strain calculation in a cell adjacent
>> to a boundary honor boundary conditions? For example, I will expect
>> plastic_strain_YY and plastic_strain_ZZ=0 if the boundary is a
>> plane along x on roller boundary condition?
>>
>> Thanks Birendra _______________________________________________
>> CIG-SHORT mailing list CIG-SHORT at geodynamics.org
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>
> Charles A. Williams Scientist GNS Science 1 Fairway Drive, Avalon PO
> Box 30368 Lower Hutt  5040 New Zealand ph (office): 0064-4570-4566
> fax (office): 0064-4570-4600 C.Williams at gns.cri.nz
>
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