Skip to main content

Blog posts

PBC in ABAQUS

Submitted by ABAqirl on

Hello everybody, i am new in abaqus, is anyone who knows how to apply periodic boundary conditions, for example for unit cell. The piece of code would be very much appreciated

 

for example ´

if i have on the left hand side node set NSET1, on the right hand site NSET2 than i should use equation like this for periodic boundary conditions in x-direction?

*EQUATION

NSET1, 1,1, NSET2, 1, 1????

Please help 

Best regards

ABAgirl

Periodic Boundary Conditions in ABAQUS

Submitted by ABAqirl on

Hello everybody, i am new in abaqus, is anyone who knows how to apply periodic boundary conditions, for example for unit cell. The piece of code would be very much appreciated

 

for example ´

if i have on the left hand side node set NSET1, on the right hand site NSET2 than i should use equation like this for periodic boundary conditions in x-direction?

*EQUATION

NSET1, 1,1, NSET2, 1, 1????

Please help 

Best regards

ABAgirl

periodic boundary conditions

Submitted by ABAqirl on

Hello everybody, i am new in abaqus, is anyone who knows how to apply periodic boundary conditions, for example for unit cell. The piece of code would be very much appreciated

 

for example ´

if i have on the left hand side node set NSET1, on the right hand site NSET2 than i should use equation like this for periodic boundary conditions in x-direction?

*EQUATION

NSET1, 1,1, NSET2, 1, 1????

Please help 

Best regards

ABAgirl

Subset Splitting Digital Image Correlation (SSDIC)

Submitted by Francois Barthelat on

Following our recent article on this new method, we are making our Matlab routines available. The package contains standard DIC, SSDIC, plus a few extras. More info here

“Subset Splitting Digital Image Correlation” (SSDIC) is based on DIC, but in addition SSDIC can capture displacement discontinuities near shear bands or cracks, where standard DIC fails.

Searching for a postdoctoral position in biomaterials

Submitted by Anna Dolgran on

Dear imechanicans,

I am seeking for a postdoctoral position in the field of biomaterials. I am interested in the mechanical behaviour of natural systems and the development of new materials. I just finished my PhD on the mechanics of crotch and would like to continue my study in the field of biomechanics/biomaterials. I am highly motivated and well organized.

I am looking forward to hearing from you!

Anna Dolgran

How to derive from poroelastic 3D equations to 1D Terzaghi equation?

Submitted by Xiaogai Li on
Hi!

In the terzaghi equation, there is a constant M (some books call is elastic oedemetric coefficient).

Since the terzaghi equation is a special case for the general 3D biot equations under oedemetric test
boundary conditions, does any book or material explain the derivation?

If I want to mode the terzaghi problem using 3D model in FE program, the M is known, then how to get the

how element quality will affect the accuracy of results

Submitted by sagar_009 on

hi all,

I want to know how the element quality is decided.

For example: for warpage of elment if allowable limit is max 15deg, what will happen if it exceeds 30 deg.

On what basis this limit is calculated.

Like this for the other quality parameters also.

plz help

 

sagar