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Abaqus Users Meet Up- 25 Locations Worldwide

 The SIMULIA Regional User Meetings (RUM) are being held in 25 locations around the world.

6 locations in the United States; 2 locations in Brazil; 7 locations in Asia/Pacific; and 9 locations in Europe.

Attend a RUM near you to meet other Abaqus users, learn about the latest FEA and multiphysics technology in Abaqus, as well as the latest Process Automation, Design Exploration, and Optimization technolgy in Isight and Tosca.

Find the location nearest to you here:

Underlying Material Response for Lüders-Like Instabilities

► The underlying material response of partially unstable materials is measured. ► This is done for Lüders deformed steel and a shape memory alloy. ► They both exhibit an up-down-up response. ► The extracted responses used in numerical models reproduce the structural responses.

AliADawood's picture

Bifurcation Analysis in Abaqus

Hello Everyone,

Im relatively new to Abaqus and I have to carry out a bifurcation analysis of a pipe. Once that is done I need to add the imperfection wavelength and amplitude calculated to the pipe and carry out further simulations.

 

Ive been trying very hard to get a direction as to where to start with it. Can anyone please help me with it? I know that you need to carry out a buckle analysis that will give you a wrinkle pattern on the pipe. This inturn will add up to the bifurcation scheme that you get.

 

Varying Yield Strength through depth in Abaqus

Hi,

I am trying to create a material model in Abaqus such that I have a varying yield strength through the depth (y-coordinate). I want a model which has maximum yield strength at the top surface and gradually goes on decreasing with y-coordinate. Is there a way to do this? Any help/insight would be greatly appreciated. Thank you.

Regards,

Deepak Patil

Abaqus 6.13 - Live Webinar July 23

Abaqus 6.13 - Live Webinar! July 23, 9am EDT and 12 pm EDT. The latest release, Abaqus 6.13 delivers a number of powerful, customer-requested enhancements for modeling, meshing, visualization, contact, mechanics, and performance. These improvements enable customers to reduce development time and costs, while increasing the efficiency of the product development process through highly accurate simulations of real-world product and material behavior.

SIMULIA's picture

RUM Call For Papers: Don't Miss Out!

The SIMULIA Regional User Meeting provides an invaluable platform
for industry and academia to join together and learn how the latest simulation
technologies and methods can accelerate and improve product
development.

 

Thermomechanical coupled simulation

Hi all,

 

I am trying to input a termperature field as initial conditions in
abaqus, to use the temperature distribution from a previous temperature
simulation in an mechanical simulation. But when I check the Temperature
values in the mechanical simulation i get great differences between the
nodal values (NT) and the element values (TEMP).

Does anybody know the reason of this problem?

 

Can it be related to the element typ? So the TEMP values are the avereged values from NT?

 

Kind regards!

Thermomechanical coupled simulation

Hi all,

 

I am trying to input a termperature field as initial conditions in
abaqus, to use the temperature distribution from a previous temperature
simulation in an mechanical simulation. But when I check the Temperature
values in the mechanical simulation i get great differences between the
nodal values (NT) and the element values (TEMP).

Does anybody know the reason of this problem?

 

Can it be related to the element typ? So the TEMP values are the avereged values from NT?

 

Kind regards!

ABAQUS model of polycrystal plasticity

Hi everyone 

I am learning the polycrystalline crystal plasticity and testing material in ABAQUS and UMAT. Now I am trying to build a RVE by using the truncated octahedrons as the grain shape or Voronoi tessellations.

For truncated octahedrons, I built a truncated octahedrons and assembled them into the grain aggregate in the .inp file, and assign orientations in the UMAT based on the part's name. However, I found it hard to define their interaction between grains. What is their interaction properties and how to define the contact pair in an automatic way?

selecting suface nodes in orphan mesh by python script????

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Hi,

    I have a 3D orphan mesh in abaqus and I need to select a group of nodes that belong to the orphan mesh and that would have been on a 3D surface of the parent solid before it was orphaned.

   I know how to do this in Abaqus/CAE, but I don't konw how to realize it using python scripts. If there is a method, just like using "findAt()" to select a surface by coordinates , to select all the nodes on a outer surface of the orphan mesh and to select all orphan elements?

XFEM in Abaqus

Hi

I am new to modelling and am trying to model a plate with a middle crack using Abaqus.

 What is the difference between modelling a cohesive and LEFM crack growth (I know cohesive involves plasticity and the traction/displacement curve and LEFM is for brittle materials).

 For cohesive, I used max principal stress for damage criteria and damage evolution based on energy criteria. 

Abaqus Help

Hello everyone. I am new to Abaqus and was wondering how to create a model of a heat sink mounted on a heated silicon dioxide substrate. The substrate is on the left side and is a rectangle with a height of 40 mm and width of 5 mm. The heat sink is connected to the right of that with a parrellelogram shape, left side height of 40 mm (adjacent to the substrate), and right side parallel with a height of 5 mm. If anyone can help it is greatly appreciated. When I try modeling it, during section assignments it will not allow me to assign any sections. I have attached a picture of the model.

Difining Interior Surfaces in Abaqus

Hi,

Is that possible to define an INTERIOR surface in Abaqus???

Cutting process simulation in Abaqus

Hello ,

 I am working on a project using abaqus to
simulate miling process. As the first stage, I have to be able to simulate cutting process in Abaqus. I have looked up Abacus 6.11 documentaion a lot but did not find too much of usefull information. Could any one kindly give some hints how to develop such model or introduce me some usefull complete resources?

Regards,

Reza

ABAQUS Python Output

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Hello everyone,

Anisotropic plasticity and hyperelasticity in Abaqus

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I am trying to model a polymer that has been processed in such a way that it has oriented (orthotropic) material properties and undergoes very high strains (>100%) before break.

Sliding In Abaqus

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Hello everybody.

 I am trying to use abaqus software to model the sliding of a metallic pile inside a metallic sleeve. I have tried doing this with the translator connector, but I always get the message that 2 regions in the model are not connected. Can anybody help me with some hints as to how to use the connector, or if there are any other ways to model the sliding? 

parthchoksi's picture

Stress-Strain curve for Concrete Damaged Plasticity in Abaqus

Hello,

 

I am using Concrete Damaged Plasticity model. My parameters are correct but I am not able to get the desired stress-strain curve for my model.

Can anyone help me with how do I plot the stress strain curve for it (Nominal Stress vs Strain, Reaction force vs displacement or anything else)?

I want to know the exact procedure to do it.

Thanks in advance. 

how to find undex charge property parameters?

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hi

i need to define bubble load in ABAQUS.

but there is some paramaters as explosion charge properties should be defined.

for example Charge material constant, K.  or  Ratio of specific heats for gas  or   Density of charge material.

 

 

how can i find these properties for any exlposion charge eg. TNT ?

 

i appreciate your help

Need Help for Abaqus/CAE ( best method for fatigue test for tensile test for a number of cycle)

Dear friends, i current doing a project work on testing fatigue life of superelastic nitinol. And since i am very new in using abaqus for testing the simulation, i seeking help from people around here to ask for method to test the work. My objective is to set a maximum elongation for 1%-6% of elongation and test for 40,000 cycle if it can work for this amount of cycle..

i Hope anyone can help me as i need to finish this project in order to graduate and i didnt get any single help from regarding this software from my side..

ABAQUS-cohesive elements in compression

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Hi all,

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