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Hi there,

 Has anyone ever used a vumat subroutine with Eulerian elements? it seems that the stress update formulation is different from the way it is in Lagrangian approach! If you have any experience in this regard I'd highly appreciate if you share it with me.

 thanks

Nature Communications 1, Article number:144 | DOI:10.1038/ncomms1149

Although deformation processes in submicron-sized metallic crystals are
well documented, the direct observation of deformation mechanisms in
crystals with dimensions below the sub-10-nm range is currently lacking.
Here, through in situ high-resolution transmission electron
microscopy (HRTEM) observations, we show that (1) in sharp contrast to
what happens in bulk materials, in which plasticity is mediated by
dislocation emission from Frank-Read sources and multiplication, partial
dislocations emitted from free surfaces dominate the deformation of

Hello every body.

                             i ve a very simple question regarding ansys. can anybody can suggest how to mesh the glued area.what is the best element to use for adhesive bonding for 2d case

Hello

I am wondering test method about open hole specimen to acquire shear strength.

The specimen is made of composite and we tried to make fixture from ASTM D5379.

However the failure mode is not acceptable and I am thinking about new test method for

open hole specimen.

Let me know any idea to approach other test method to acquire open hole shear strength value.

Thanks

C.J. Syn

Hi,

I was wondering if someone knows literature related to "Inverse eigenstrain analysis based on residual strains in the case of small strain geometric nonlinearity"? (elongated bodies)

In the case of lineralized elasticity I guess one could postulate an eigenstrain distribution as the sum of a finite set of basic eigenstrain distribution and minimize the difference between the predicted and the actual residual strain distribution (retrieved from a synchroton mapping for example).

As done in the paper:

Hello

I am reading an abaqus odb which is solved for 2 time steps 'step1' and 'step2' and i want to read  the output at every last frame of these steps.  further, I have written python script to find change in dispacement. I have written this code which works fine to capture delta displacement

Hai,

Does anyone have Abaqus Umat Study material. If so please give me.

I want to simulate scracthing of SiC material using drucker-prager model.

Where can i get tri-axial data to get the parameters of drucker-prager?

Or is there any other way to define the parameters?

We demonstrate that a soft substrate of a stiffness that matches the embryonic stem cell stiffness can promote homogenous self-renewal and pluripotency of these cells, even in the absence of the growth factor-Leukemia Inhibitory Factor (LIF). These findings open the field of stem cell biology for long term culture of embryonic stem cells without generating a heterogeneous population of cells with varying degrees of differentiation and highlight the importance of mechanics in dictating embryonic stem cell pluripotency.