CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS

How to model concrete slab in ANSYS and apply 2 million cyclic load.

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 9, 2009, 10:32
Default How to model concrete slab in ANSYS and apply 2 million cyclic load.
  #1
jjc
New Member
 
Kah Keat
Join Date: Sep 2009
Posts: 1
Rep Power: 0
jjc is on a distinguished road
Hi, everybody.

I am Keat, from Malaysia. I am currently study in civil engineering and taking my final year project for degree graduation.

My thesis title given by supervisor is to use ANSYS to modelling a 3m X 1m C-Channel (a precast concrete slab system), to apply 2 million cyclic load (30kN) of line load to it, and then to study the deflection behavior.

After that i was request to perform lab experiment to use an actuator machine to carry out a test so that the ANSYS result can be verified.
I am struggling for around 3 month already, but still not yet any improvement. Due to lack of information in my university, and also do not have lecture skill in this field.

The main problem I am facing now is how to perform bonding between the steel bar and concrete, since i only know how to sketch out the concrete slab and steel bar seperately in ANSYS.

And also is it possible to apply 2 Million cyclic load on the slab in ANSYS? I am currently using ANSYS v11.

Do teach me how to do it, I am very much appreciate, and I am hopping for anyone to guide me for the ANSYS usage.

Thank you very very much!

Last edited by jjc; September 10, 2009 at 04:56.
jjc is offline   Reply With Quote

Old   February 4, 2010, 06:36
Default
  #2
New Member
 
foransys
Join Date: Feb 2010
Posts: 2
Rep Power: 0
foransys is on a distinguished road
Does no one to answer these questions. because I need to do a similar analysis
foransys is offline   Reply With Quote

Old   April 1, 2010, 05:00
Red face Ideea !!!
  #3
Member
 
adminCAE
Join Date: Aug 2009
Location: Timisoara
Posts: 63
Rep Power: 17
mechanicaldesign is on a distinguished road
Hi all,

In my opinion this cicle is not reffering to applied load (phisic) on your model. I think is about fatigue study. Is only study in which is aplied a force in one direction, and after that is applied a force in oposide direction.

Other manner in which can be applied the force for 2 mil. cycle, is to made a harmonical study, in which you know the locations of applied loads, value of applied loads, frequency with which acting the loads / second (usualy reported to your unit system of measure adopted: SI, ANSI, etc) which means Hz. Like time, you can settup the number of cycle like substeps number. Both with this settup you can choose betweens ramped ( then its value increases gradually at each substep, with the full value occurring at the end of the load step )or steped ( then its full value is applied at the first substep and stays constant for the rest of the load step ) manner in which are applied loads.

I hope to be useful for you this advice.

Best regards.
mechanicaldesign is offline   Reply With Quote

Old   April 12, 2011, 05:47
Arrow modeling
  #4
New Member
 
ganesh
Join Date: Apr 2011
Posts: 1
Rep Power: 0
ganesharun is on a distinguished road
Hi...

Better u go for discrete modeling... In dis place a node where and all the reinforcement is coming.. Connect those nodes using Link8 element (2 noded element for reinforcement). Also connect that nodes using Solid 65 element (8 noded element for concrete). So that ur reinforcement and concrete can share same node. So that they can perform monolithically. Since I'm also struggling in cyclic load. If u find out any soln pls tel me...
ganesharun is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 10:51.