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Open a new thread / Scouring at bridges piers
« Last post by GianlucaB on September 12, 2018, 06:33:09 AM »
Hi!

I'm a student from University of Padova (Italy)

I'm doing my master thesis in Civil engineering. I'm using Abaqus for modelling a pier of a bridge suffering scour. Scour is simply removal of soil around the bridge pier. My aim is to understand how vertical displacement varies and grows as a function of the progressive removal of material around the foundation.

I tried to model 3 different situations:

1st: Pier + Foundation and soil without removal
2nd: Pier + Foundation and soil with scour removal
3rd: Pier + Foundation and soil with scour removal greater than thew previous.

For now, results show a bigger vertical displacement without removal. It is not possible.

I would like to carry a dynamic analysis starting from soil undisturbed then progressively remove parts (=piece of soils) during the analysis.

Is it possible with Abaqus? How can i do it?

Thanks for the help!
2
Open a new thread / Re: Relative displacement
« Last post by Admin on August 07, 2018, 12:42:26 PM »
First of all create xy data, for example displacement in two node.
Then operate on xy data by subtract two variables.
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Open a new thread / Relative displacement
« Last post by mathuogu on August 04, 2018, 08:50:25 AM »
How to plot relative displacement as contour plot ( Not X Y data) in abaqus? More elaborately, i have a gap and in that gap some other material filled and due to temperature difference deformation happened. I need to plot displacement w.r.t mid plane or mid node of that gap.
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Open a new thread / Element normal direction
« Last post by flyman on April 18, 2018, 09:42:25 AM »
Hi,

I'm looking on how to create a data file from the output with the normal direction of all the elements related to their area, in order to evaluate the resulting direction of all the structure (shell).

Can anyone help me?

Best regards
5
Open a new thread / Pressure orientation
« Last post by flyman on April 02, 2018, 07:44:40 AM »
Hello everybody,

I'm working on a model in which I have pressure field and a shell that's not normal to the field. How should I model the load?

I tried to create a pressure field in the direction I want but the intensity of the field on my shell results increasing from the origin to the surface's end (when it should be constant). Did I model something wrong?

An other way to model this should be to split the pressure in normal (that means simple normal pressure) and tangential (that means cutting force).
Make this sense?

What is the best way to solve this problem according to you?

Best regards
6
Open a new thread / Re: initial overclosures problem
« Last post by kamran on January 24, 2018, 02:48:03 PM »
this error means that you have highly and badly deformed elements, you can locate those elements and try meshing your model with other mesh techniques or use remeshing methods.
Also, could you shear the inp file so we can talk in more details.
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Open a new thread / Re: holder force in channel forming
« Last post by kamran on January 24, 2018, 02:44:16 PM »
hi,
I actually did not get your question, what do you mean by " the blank makes up the holder". could you give us more information and also could you upload the inp file?
thanks,
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Open a new thread / holder force in channel forming
« Last post by soumaya on January 15, 2018, 04:52:59 AM »
hello every one, can you help me please , i simulate the channel forming processs (there are an example of this process in the help of abaqus ), the problem is when i decrease the holder force  fo example (5KN), the blank makes up the holder and the blank has not defomed well. i want to know how eliminate this problem.
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Open a new thread / Re: Abaqus advice
« Last post by kamran on December 08, 2017, 08:57:08 PM »
hi,
there are several ways to simulate this problem.
create a 3d structure of the steel within the other part and use proper friction condition which should probably include coulomb friction, yield, damage and etc.
create the steel as wire features and add a connector with proper properties
use stringer and embed the steels into the other part and apply proper properties
use any combination of the above list.
thanks,
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Open a new thread / Re: Help Required in Abaqus Modeling
« Last post by kamran on December 08, 2017, 08:46:59 PM »
hi,
I don't see the picture you mentioned, could you please upload it again, anyway, I will try to help you. one of the ways could be this: 1) create the first part (e.g. the rectangular part) with your desired depth ( use creat part icon in the part module), 2) using the "create solid:extrude" in the part module add the second section of the part (like the cylindrical part) to it.
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