[CIG-SHORT] plastic strain

[Birendra jha]

Thanks Brad and Charles. Yes, I seem to forget about the CellFilterAvg once in a while.
 
--------------------------------------------
On Thu, 11/6/14, Brad Aagaard <baagaard at usgs.gov> wrote:

 Subject: Re: [CIG-SHORT] plastic strain
 To: cig-short at geodynamics.org
 Date: Thursday, November 6, 2014, 5:25 PM
 
 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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