strain history of beam elements

[Mahmood Moosavizadeh]

Dear all,

In the attached figure, you can see the reinforcing bars of a concrete beam. How can I determine the axial strain time history for the specified beam element of the steel bar?  Which parameters and keywords should I activate before analysis? Any further guidance would be greatly appreciated.

--

M. Moosavizadeh

[James Kennedy]

Dear Mahmood,

 

Please see if the following helps:

 

https://www.dynasupport.com/howtos/element/beam

 

In this manuscript, the various methods of including rebar in reinforced concrete were described. The effectiveness of these methods was assessed through a comparative example of a reinforced concrete slab loaded in axial extension, under self weight and subjected to air blast loading with comparisons to experimental results. The manuscript included a mesh refinement study where the reinforcement and concrete mesh densities were changed independently.

 

Schwer, L.E., "Modeling Rebar: The Forgotten Sister in Reinforced Concrete Modeling", 13th International LS-DYNA Users Conference, Dearborn, Michigan, June, 2014.

 

http://www.dynalook.com/13th-international-ls-dyna-conference/constitutive-modeling/modeling-rebar-the-forgotten-sister-in-reinforced-concrete-modeling

 

Examples of rebar coupled to concrete (*clis and *cbis) are given here:

http://ftp.lstc.com/anonymous/outgoing/support/FAQ_kw/concrete/coupling_by_clis.k.gz and

http://ftp.lstc.com/anonymous/outgoing/support/FAQ_kw/concrete/coupling_by_cbis.k.gz

 

Sincerely,

James M. Kennedy

KBS2 Inc.

October 10, 2023

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[l...@schwer.net]

There are a few parameters that need to be specified:

 

1\ *DATABASE_EXTENT_BINARY parameter BEAMIP

2\ *DATABASE_ELOUT

3\ *DATABASE_HISTORY_BEAM

 

               --len

 

From: ls-d...@googlegroups.com <ls-d...@googlegroups.com> On Behalf Of Mahmood Moosavizadeh
Sent: Monday, October 9, 2023 1:06 AM
To: ls-d...@googlegroups.com
Subject: [LS-DYNA2] strain history of beam elements

 

Dear all,

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[Ameen Topa]

Dear Mahmood,

You can check the following:

https://www.dynasupport.com/howtos/element/beam

Sincerely,

Ameen 

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