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Periodic Boundary Conditions for uniaxial compression

Submitted by Gouse on
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unit cell
PBCs
uniaxial compression

Dear All,

I am trying to simulate mechanical behaviour of a concrete unit cell for uniaxial compression laoding. I have apllied periodic bounadary conditions on both lateral edges using linear equation option available in ABAQUS where as on top and bottom edges load is apllied. Deformed structure shows there is no lateral deformation and unit cell behaves as if it is confined laterally on both sides. I am confused about my boundary conditions whether they are correct or not. 

 Equation used to aplly periodic bounadary condition are

Mohr-Coulomb Shell in Abaqus. Help!

Submitted by pbocchini on
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ABAQUS
Shell
plane stress
mohr coulomb

Hi,

I am new to Abaqus and I am trying to use it to model some industrial shells. According to some preliminar studies, the material has a mohr-coulomb plastic behaviour. Thus, I wanted to use shell elements, with a mohr-coulomb plastic material, but it seems that it is not possible in Abaqus.

According to the theoretical manual and the user manual (18.3.3-6):

Dynamic Modeling for Viscoelastic material using ANSYS

Submitted by parimal_maity on
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Viscoelastic

Hello,

I am planing to model a viscolestic material in ANSYS and condition is dynamic.

Could anyone please suggest what are the essential things (i mean datas) required for modeling a viscoelastic material?

For example, If I do the DMA test of viscoelastic materials i can have the modulus data at different frequencies. How to use those data in ANSYS to find out the stress-strain curve?

Thnaks for your kind help

parimal maity

GEOMETRIC NON LINEAR ANALYSIS WITH MATLAB

Submitted by kazitani_nabil31 on
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geometric non linearity MATLAB beam

Dear professors

 Could you please help me to get an MATLAB code for non linear analysis of simply supported beams please.

Email me on; kazitani_nabil [at] yahoo.fr (kazitani_nabil[at]yahoo[dot]fr)

Best regards

zero thickness cohesive zone with curvature (update)

Submitted by henryjamesusa on
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Hi everyone:

   I am henry, a graduate student in USA. These days, I am trying to make a zero thickness cohesive zone with curvature. After I define this and get everyting set up, then submit the job, the warning windows pop out and tell me the following error messages:

The node numbering might not be correct for element 2010 instance cohesive-1

The node numbering might not be correct for element 2010 instance cohesive-1

The node numbering might not be correct for element 2029 instance cohesive-1

More information about residual stress tester.

Submitted by ennio curto on
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Materials Forum
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WELDING AND RESIDUAL STRESS
Tester NDE Residual Stress
Residual Stress Measurement

More information about residual stress tester.





The residual stress in a metal do not depend on it hardness, but from the module of elasticity or Young module and from its chemical composition (density).

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