I am confused about apply BC of a model in abaqus. because I find that if I apply the accelaration of earthquake on BC, I must remove the fixed constraints applied on BC in previous step in abaqus. so the model become a free body without any constraints.

 any expert can give me some detailed suggestions?thank you very much!^_^

Hi everyone,

Do you know how to impose in abaqus that all the nodes of a specified surface have the same displacement on U1 for example without specifying a value. think about a traction test of a non homogeneous shell in which we want the edges to remain vertical.

I tried constraint, coupling, U1 but it fixes U1=0

thanks a lot,

Hichem

Help! imechanica!

This might not be a smart question to ask, but if any of you can help me, it'd be great.

 I have a DCB (sandwitch specimen) with a cohesive element in the middle. Studying pure Mode I case, displacement is applied at the end of the DCB. Cohesive element works great (it fails when one reaches max separations).  But I am having a difficulity in extracting crack length (i.e. length of failed cohesive element) vs time step. I looked for Damage and Status commend, but it's not promising.  (I'm pretty new to ABAQUS....)

 If you have worked on cohesive elements, and know where those (filed maybe?) output of failed element lengths can be found, could you please help?

 Thanks~ masa

i have problem in IMPACT load on beam , whatever is there i mentioned below

i have load (kips) vs time (sec)

at time =0 , load=0 

at time =0.006 , load=5.9

at time 0.056 , load=0

i use funtion editor by linear eqution Y=aX+b

i could not accurate result because of interpolations in ANSYS is differance then the MATHEMATICS. like

As per ANSYS

                    Time      Force 

                     0            0

Hello all,

i have a proplem in choosing the element type  in Ansys when i make  a model for a cracked pipe with an internal pressure about 10 bar the material is high density polyethelen

i would be thankful if any person have an answer

Best Regards

Suzanne

Hi all

My name is Rocío and I need some
help with composite material and Ansys program. I have done a model of part of
a bus' structure using shell 99 and I have a problem. I need to know the weight
of the models but I'm not sure where I must to introduce the density properties.
I have the density of the skin according to the volume fibre/matrix. If I
introduce it’s in the material proprieties, and apply to each ply, the model is
very heavy and if I introduce it in the real constant (in ADMUSA, dividing the
total density by the total ply numbers???) the model is very light.  Where can I introduce the density material and
how?

Thank for all.

Fig 1 - Why does the boundary condition...:

Fig 2 0 ...result in the expansion of the tube's edge:

Hi,

 I need to do the modelling in a command file instead of through the ANSYS graphinc interface as I need to try out different configurations and automatically run it in ANSYS. My question is:

 Say I create a rectangular geometry using the BLC4 command:

BLC4,-5,-15,80,100

I need to load the structure using the DL command? How do I know which side of the rectangel is assigned which line number? Can I control this? Is it consistent?

 Thanks,

Prakash Manandhar
http://p-manandhar.info 

hai all

my name is krishna. Iam working on ansys modelling of electrical discharge machining electrode wear. I have to model this phenomenon using ansys software. IF any body knows it plz help me regarding this modelling

How to simulate BINGHAM fluid flow through porous media by the ANSYS CFD?

If you have some suggestion or you engage in the same problem,please communicate with me by MSN.

My MSN account is kongxiangpeng@msn.com.

Hi all,

'm trying to perform a coupled two-way thermal stress calculation and I
don't know how to do it.  I mean,  I calculate the tempearures and
simulataneusly, with node13 or node223, the deformations produced by
that temperature field. Normally that would be enough but happens that
my deformations should affect the temperatures so I need to iterate at
least once more. How can I do that? I found anything in the manual
about this ! Could someone give me a hand on this?

Thanks in advance. I look forward to hearing from you soon.

Sincerely

antonio

Dear all, I would like to know if there is anyone working with the Material Point Method for simulations in Geomechanics (or other fields...).

Thanks,

Dorival. 

I was wondering if someone has interests on working with the material point method.

Cheers,

Dorival. 

dear :

I an a begginer of ABAQUS software. I want to modeling machining process with ABAQUS. I have problem for doing it. Can I do this simulation with ABAQUS/CAE or I need to modeling with ABAQUS/Explicit. I need to guide me for this problem

thanks and regards

Ali

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I have a problem with a model. It contains over 450 parts that shall have the same section assigned. Is there some easy way to assign to all parts at one time? The abaqus version is 6.7-1.

regards

Pål

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        I am looking to get some pointers on manual meshing using ANSYS workbench. I am not happy with the automesh results I am getting. I would like to discuss one on one via email. I am a real user and not a spammer. Anyone willing to discuss?

Thanks

              Mani

Dear All,

I am wondering about beam element in MSC NASTRAN.

How can a linear distribution of translation or rotation along a beam element produce a linear distribution of moment and constant shear force in a case of single tip force loading?  

What kind of beam element or beam theory used? I am not sure it is Timoshenko beam theory (which produce constant moment and linear shear force distribution)

I thank you in advance.

Best regards,

Sugeng  

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