XANSYS Message: 93126 [Go back to message list]
[bookmark on del.icio.us]
No rating yet
Rate item:

Subject: Re: [ANSYS/LS DYNA] Missile penetration
Author: ritter_at_jar.com
Date: 2008-05-02 13:29:52

There are some extra cost features in DYNA you don't get - I think the airbag module is extra, for example.

You can modify the K file for other material models. I have used a generalized damage model for a material and other material models too. I was able to look at those results in ANSYS. Maybe the MAT 78 option you want will work in ANSYS Post too. Otherwise, LS-PRE/POST will access the results.

Chuck Ritter
JAR Associates
writter_at_jar.com
401-294-4589

>
> From: "Ilker KAZAZ"
> Date: 2008/05/02 Fri AM 03:34:36 EDT
> To: "ANSYS User Discussion List"
> Subject: Re: [Xansys] [ANSYS/LS DYNA] Missile penetration
>
> Thank you very much Dave, Joe, Chuck and Mou,
>
>
>
> You have clarified me over the subject. I see that I can do something with
> ANSYS/LS DYNA. I am familiar with ANSYS but I have never used LS DYNA.
>
>
>
> Let me ask one more thing. Depending on your comments about modifying the k
> file, if I did not misunderstand I can have full access to LS DYNA's
> capabilities as far as I perform the necessary modification on the k file.
> However, while creating the model in ANSYS preprocessor, only limited number
> of element types and material models (concrete damage model - Material#72 in
> LS DYNA) is available to be used in the model. I wonder whether I can change
> the material model written to the k file, for instance to material model #78
> in LS DYNA, manually and run the analysis, since k file has nothing to do
> with ANSYS? Is it possible?
>
>
>
> Let me put it in this way: I use SOLID164 from ANSYS library, but material
> model is #78 from LS DYNA library (by modifying the k file manually). In the
> k file SOLID164 is matched to a compatible element type in LS DYNA
> (SECTION_SOLID - constant stress 8 node brick element). Can I still post
> process the results or will the result file be incompatible to read by the
> post processor?
>
>
>
> Thanks for all the response in advance.
>
>
>
> Ilker
>
>
>
> Ilker KAZAZ
>
> Middle East Technical University
>
> Department of Civil Engineering
>
> 06531 Ankara / TURKEY
>
> Tel: +090 3122105478
>
>
>
>
>
> ----- Original Message -----
> From: "chuck ritter"
> To: "ANSYS User Discussion List"
> Sent: Thursday, May 01, 2008 5:49 PM
> Subject: Re: [Xansys] [ANSYS/LS DYNA] Missile penetration
>
>
> > You can download the LS-DYNA manuals from the LSTC website, if you haven't
> > already. You can also download the pre and post processor LS-PRE/POST for
> > free, which will get you access to more features. It doesn't have great
> > documentation, but it sure is fast once you figure out what series of
> > buttons to click on.
> >
> > You can still execute the modified K file with the ANSYS launcher or
> > create
> > a batch file to do it (.bat on Windows).
> >
> > Chuck Ritter
> > JAR Associates
> > ritter_at_jar.com
> > 401-294-4589 fax 401-294-3826
> >
> > ----- Original Message -----
> > From: "Metrisin, Joe"
> > To: "ANSYS User Discussion List"
> > Sent: Thursday, May 01, 2008 10:34 AM
> > Subject: Re: [Xansys] [ANSYS/LS DYNA] Missile penetration
> >
> >
> >>A word of caution here: As Dave mentioned, ANSYS/Ls-Dyna basically adds
> >> pre- and post- processing capability to the LS-Dyna solver. It only
> >> supports the most basic meshing, material properties, and loading, etc.
> >> It doesn't support ALE, and sucks as a post processor.
> >>
> >> For the kind of problem you describe, don't expect to do all your model
> >> prep in ANSYS and hit the solve button. You'll have to do a lot of
> >> manual editing of the .K file.
> >>
> >> Joseph T Metrisin
> >> Florida Turbine Technologies, Inc.
> >> 1701 Military Trail, Suite 110
> >> Jupiter, FL. 33458-7887
> >> (561) 427-6346
> >>
> >> -----Original Message-----
> >> From: xansys-bounces_at_xansys.org [mailto:xansys-bounces_at_xansys.org] On
> >> Behalf Of Dave Lindeman
> >> Sent: Thursday, May 01, 2008 10:22 AM
> >> To: ANSYS User Discussion List
> >> Subject: Re: [Xansys] [ANSYS/LS DYNA] Missile penetration
> >>
> >> ANSYS/LS-DYNA is simply an interface between ANSYS and LS-DYNA. It
> >> allows you to used ANSYS as a pre- and post-processor for LS-DYNA. So,
> >> if you feel LS-DYNA can solve your problem, then ANSYS/LS-DYNA should
> >> work just fine.
> >>
> >> Regards,
> >>
> >> Dave
> >>
> >> -------------------------
> >> Dave Lindeman
> >> Lead Research Specialist
> >> 3M Company
> >> 3M Center 235-3F-08
> >> St. Paul, MN 55144
> >> 651-733-6383
> >>
> >>
> >> Ilker KAZAZ wrote:
> >>> Dear group members,
> >>>
> >>>
> >>>
> >>> I want to perform numerical simulation on the perforation of
> >> reinforced concrete targets by high velocity missile. The missile
> >> penetrates and passes through a target reinforced concrete slab, indeed
> >> three of them. ANSYS/LS DYNA is available in the university currently. I
> >> wonder whether ANSYS/LS DYNA can perform the simulation satisfactorily.
> >> The matter of importance in this simulation will be the damage pattern,
> >> i.e. the shape of crater in the entrance and exit regions on the
> >> reinforced concrete target. Additionally can I simulate the fracture and
> >> fragmentation of concrete? The papers I have read convinced me that
> >> these simulations can be done with codes like LS DYNA and AUTODYN. What
> >> about ANSYS/LS DYNA?
> >>>
> >>>
> >>>
> >>> Any informative comments will be highly appreciated.
> >>>
> >>>
> >>>
> >>> Ilker KAZAZ
> >>>
> >>> Middle East Technical University
> >>>
> >>> Department of Civil Engineering
> >>>
> >>> 06531 Ankara / TURKEY
> >>>
> >>> Tel: +090 3122105478
> >>> ^--------------------------------------------------------
> >>> | XANSYS - www.xansys.org |
> >>> | The Discussion List for users of ANSYS, Inc. Software |
> >>> | Hosted by PADT - www.padtinc.com |
> >>> ^--------------------------------------------------------
> >>>
> >> ^--------------------------------------------------------
> >> | XANSYS - www.xansys.org |
> >> | The Discussion List for users of ANSYS, Inc. Software |
> >> | Hosted by PADT - www.padtinc.com |
> >> ^--------------------------------------------------------
> >> ^--------------------------------------------------------
> >> | XANSYS - www.xansys.org |
> >> | The Discussion List for users of ANSYS, Inc. Software |
> >> | Hosted by PADT - www.padtinc.com |
> >> ^--------------------------------------------------------
> >>
> >
> >
> > ^--------------------------------------------------------
> > | XANSYS - www.xansys.org |
> > | The Discussion List for users of ANSYS, Inc. Software |
> > | Hosted by PADT - www.padtinc.com |
> > ^--------------------------------------------------------
>
> ^--------------------------------------------------------
> | XANSYS - www.xansys.org |
> | The Discussion List for users of ANSYS, Inc. Software |
> | Hosted by PADT - www.padtinc.com |
> ^--------------------------------------------------------
>

^--------------------------------------------------------
| XANSYS - www.xansys.org |
| The Discussion List for users of ANSYS, Inc. Software |
| Hosted by PADT - www.padtinc.com |
^--------------------------------------------------------

Posts possibly associated with message #93126AuthorDateScore
93105[ANSYS/LS DYNA] Missile penetrationIlker KAZAZ 2008/05/01 
93114Re: [ANSYS/LS DYNA] Missile penetrationDave Lindeman2008/05/01 
93115Re: [ANSYS/LS DYNA] Missile penetrationJoe Metrisin2008/05/01 
93116Re: [ANSYS/LS DYNA] Missile penetrationJoe Metrisin2008/05/01 
93117Re: [ANSYS/LS DYNA] Missile penetrationChuck Ritter2008/05/01 
93118Re: [ANSYS/LS DYNA] Missile penetrationChuck Ritter2008/05/01 
93120Re: [ANSYS/LS DYNA] Missile penetrationMou Jianqiang 2008/05/02 
93124Re: [ANSYS/LS DYNA] Missile penetrationIlker KAZAZ 2008/05/02 
93125Re: [ANSYS/LS DYNA] Missile penetrationMou Jianqiang 2008/05/02 
93126Re: [ANSYS/LS DYNA] Missile penetrationritter_at_jar.com2008/05/02 
93127Re: [ANSYS/LS DYNA] Missile penetrationParis Altidis2008/05/02