Ansys autodyn in_workbench_introduction

© 2006 ANSYS, Inc. All rights reserved. 1/50 ANSYS, Inc. Proprietary

Welcome to the ANSYS AUTODYN® Update

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Release 11 Update ANSYS AUTODYN® in Workbench

Bence I. GerberRegional Manager, Explicit ProductsANSYS, [email protected]

© 2006 ANSYS, Inc. All rights reserved. 2 ANSYS, Inc. Proprietary


ANSYS AUTODYN® Update

Outline

• AUTODYN Release 11.0• ANSYS Workbench• Enhancements to AUTODYN Solvers• New Material Models• Enhancements to AUTODYN Pre/Post• New Licensing Installation and Running

Procedures• Summary


AUTODYN Release 11.0

• Release 11.0 is a major step forward in continuing the User Friendly, Easy to Use tradition AUTODYN development

• (over v6.1 almost worth 5 levels)

• Integrated into ANSYS Workbench– Access to CAD Geometries (Geometry IF)– Quick and easy geometry generation (DM)– Access to classic FEM models (FE Modeler)– Access to powerful meshing (Meshing and A*I)

• Continued enhancements to AUTODYN solvers, material models, pre/post processing



Outline


Procedures


What is ANSYS Workbench?

• A framework for performing multi-disciplinary simulation


What is ANSYS Workbench?

• Data is shared between applications• Project page manages files and applications


Bidirectional CAD Associativity

• We must use, and re-use your CAD models, and ultimately drive changes in your designs

Parameters from CAD to WB

Parameters from WB to CAD


CAD Integrated, CAD Neutral

• Primary modeling is done in CAD• Bi-directional parametric link

Workbench


ANSYS Geometry Interfaces

CAD INTEGRATION PRODUCTS File Type

MCAD INTERFACE PRODUCTS File Type

Geometry Interface for Pro/ENGINEER .prt, .asm

Geometry Interface for NX .prt

Geometry Interface for CATIA V4 .model, .div

Geometry Interface for CATIA V5 .CATPart, .CATProduct

CADNEXUS/CAPRI CAE Gateway for CATIA V5 .model, .div, .CATPart, .CATProduct

Geometry Interface for Inventor/MDT .ipt, .jam, .dwg

Geometry Interface for Solid Edge .pag, .asm, .psm, .pwd

Geometry Interface for SolidWorks .SLDPRT, .SLDASM

Geometry Interface for One Space Designer .pka, .bdl, .ses, .sda

Geometry Interface for SAT .sat

Geometry Interface for Parasolid .xmt


Workbench Meshing

• Simple mesh controls


Workbench Meshing

• Add detailed mesh controls if needed


Workbench Meshing Methods

• Optional meshing methods can be assigned on a part-by-part basis

• Common mesh controlsHex-Dominant

TetrahedralSwept

Hex elements on boundariesMixed element

types in the interior


FE Modeler – External Mesh

Initial Mesh

Skin Detection in FE Modeler

Simulation Results


ICEM CFD / AI*E Overview

• Available inside ANSYS Workbench (Advanced Meshing app.), or standalone

• Targeted at high-end analysts, with specific needs for meshing which handles:– Complex geometry– Dirty geometry– CAD and STL geometry– Hand-crafted mesh– 3rd party solvers


Workbench - Guiding Principles

• CAD-connected (but agnostic)• Parametric• Persistent• Highly-automated meshing• Meshing that’s aware of the applied physics• User has ability to “drill down” to control mesh

methods, controls• Independents zones are “neighbor aware”



Outline


Procedures


Enhancements to the Solvers

• New trajectory based 3D contact algorithm– Increased flexibility (no external gap)– Significant efficiency improvements

• Group Contact (in addition to Part Contact)– Select faces to participate in contact– Erosion redefines face

• Extended material models for ANP-Tet• Automatic Mass Scaling– Courant–Friedrichs–Lewy (CFL) time step saved

for each element. (Maximum scaling: 100)• New pressure equilibrium option for Euler • HP-MPI message passing for Parallel Processing

(Linux only)


Trajectory Contact


Extended models for ANP-Tet

Equations of State

Strength Models

Failure Models

Linear Elastic Hydro (Pmin)

Polynomial Viscoelastic Plastic Strain

Shock Von Mises Principal Stress

Porous Johnson Cook Principal Strain

Compaction Piecewise JC Principal Stress/

P alpha Zerilli Armstrong Johnson-Holmquist

Rigid Steinberg Guinan RHT Concrete

Hyperelastic Drucker-Prager Grady Spall Model

Johnson-Holmquist Johnson Cook

RHT Concrete Crack Softening

MO Granular

Hyperelastic

Valid Material Modeling Options for the ANP Tet Element


Mass Scaling



Outline


Procedures


New Material Models

• Hyperelastic

• New Powder Burn model

• Extended Granular strength model• JWL-Miller

• Simple thermobaric representation


Hyperelastic Rubber Model

• Neo-Hookean• Mooney-Rivlin• Yeoh• Ogden• Arruda-Boyce


Hyperelastic Rubber


Powder Equation of State

• Slowburn (Powder) EOS a two phase model• The material is modeled prior and after ignition as solid

and gaseous states• The release of energy depends on the reaction rate


JWL Miller Extension

Release of additional energy from burning of Aluminium (Al) and ammonium perchlorate (AP) particles after the explosives are detonated



Outline


Procedures


Enhancements to Pre/Post

• Improved memory management for pre- and post-processing

• Results files for more efficient post-processing– selected results only resulting in small files.

• Better compression of binary data files• Interactive selection of Parts• Interactive selection of Gauges• Euler & SPH Material Fill with Unstructured Parts• New System of Units (English and Micron)


Larger Models for 64bit architectures

MB used vs. Number of Elements

0

500

1,000

1,500

2,000

2,500

0.E+00 1.E+06 2.E+06 3.E+06 4.E+06 5.E+06 6.E+06 7.E+06

Number of Elements

MB

of

me

mo

ry u

se

d

v6.1v11.0


• Use Parts(Meshes) obtained from other WB applications to initialize SPH and Euler

Fill using Unstructured Parts

SPH Euler


Interactive Part Selection


Interactive Node selection


New English Unitsin, lb, s in, lb, ms in, lb, µs ft, lb, s ft, lb, ms ft, lb, µs

Length in in in ft ft ft

Mass lb lb lb lb lb lb

Time s ms µs s ms µs

Temperature K K K K K K

Density[big1] lb.s2/in4 lb.ms2/in4 lb.µs2/in4 lb.s2/ft4 lb.ms2/ft4 lb.µs2/ft4

Inertia lb.s2.in lb.ms2.in lb.µs2.in lb.s2.ft lb.ms2.ft lb.µs2.ft

Volume in3 in3 in3 ft3 ft3 ft3

Force lb lb lb lb lb lb

Pressure psi psi psi psf psf psf

Impulse lb.s lb.ms lb.µs lb.s lb.ms lb.µs

Velocity in/s in/ms in/µs ft/s ft/ms ft/µs

Work lb.in lb.in lb.in lb.ft lb.ft lb.ft

Strain Rate 1/s 1/ms 1/µs 1/s 1/ms 1/µs

Energy lb.in lb.in lb.in lb.ft lb.ft lb.ft

Energy/Unit Mass in2/s2 in2/ms2 in2/µs2 ft2/s2 ft2/ms2 ft2/µs2

Energy/Unit Volume lb/in2 lb/in2 lb/in2 lb/ft2 lb/ft2 lb/ft2

Fracture Energy lb/in lb/in lb/in lb/ft lb/ft lb/ft

Fracture Toughness Squared lb2/in2 lb2/in2 lb2/in2 lb2/ft2 lb2/ft2 lb2/ft2

Specific Heat Capacity in2/s2.K in2/ms2.K in2/µs2.K ft2/s2.K ft2/ms2.K ft2/µs2.K

Thermal Conductivity lb.s/K lb.ms/K lb.µs/K lb.s/K lb.ms/K lb.µs/K



Outline


Procedures


New Installation and Licensing


Licensing

• FLEXnet licensing system is used.• Install the ANSYS License Server on any

computer running an operating system supported by FLEXnet (Windows, Linux, Unix).

• The computer running AUTODYN must be set up as an ANSYS Licensing client and have TCP/IP access to the license Server.

• The authorization codes required to run ANSYS AUTODYN and other ANSYS products are distributed by E-mail.


Information Needed for Licensing

• The ANSYS License Utility available from http://www.ansys.com/services/license_hostid/default.asp or as part of the installation must be run on the computer that will be the license server to obtain system information that will be used to create your license file.

http://www.ansys.com/services/license_hostid/default.asp


AUTODYN Licenses Issued

• For each AUTODYN-2D dongle a FlexLM license will be provided that will allow:– 1 instance of a full AUTODYN-2D pre-processing or post-processing or

execution– 1 instance of an AUTODYN-2D pre-processing or post-processing only, no

execution• For each AUTODYN 2D and 3D dongle a FlexLM license will be provided that

will allow:– 1 instance of a full AUTODYN-2D pre-processing or post-processing or

execution– 1 instance of a full AUTODYN-3D pre-processing or post-processing or

execution– 2 instances of an AUTODYN 2D or 3D pre-processing or post-processing

only, no execution– 2 HPC licenses that will enable AUTODYN-3D to run in parallel on 2 CPU’s

– ANSYS Workbench– Meshing– FEModeler– DesignMoldeler (Optional)


New Appearance

• The appearance of AUTODYN Release 11.0 is different than v6.1

• There is no AUTODYN icon placed on the desktop

• There is no AUTODYN Group in the Start/Programs menu.

• To start AUTODYN, first start ANSYS Workbench


Start ANSYS Workbench


Start a WB Project or AUTODYN

Start a new Workbench Project Start AUTODYN


Import/Link to a Geometry File


Expand the Parts description


Generate Mesh


Save and Proceed to AUTODYN


The New AUTODYN GUIThe New AUTODYN GUI


The New AUTODYN GUI

Some of the icons have changed to conform with Workbench.

On some computers the hover/hints may not work correctly. The diagram below shows what the hints should be:


Summary

• Release 11.0 is a major step forward in continuing the User Friendly, Easy to Use tradition AUTODYN development

• AUTODYN is leading the way in integration solutions into Workbench

• The vast resources of ANSYS, Inc. will enable AUTODYN to become the undisputed leader in Explicit Dynamic analysis

Send Questions/Suggestions to: Bence Gerber [email protected] 925 771-2302

mailto:[email protected]


END


Additional v11 Web Events

• ANSYS v11 Update• v11 Enhancements to Elements, Materials and Solvers• ANSYS CFX v11 Update • Pressure Vessel Module• Rotordynamics with ANSYS v11• ANSYS CFX TurboSystem• Fluid Structure Interaction - ANSYS and CFX• CFD Analysis with ANSYS CFX• ANSYS AUTODYN in Workbench• Design Modifications without CAD• Up-Front CFD using ANSYS CFX• Random Vibration Solutions in Workbench

http://www.ansys.com/special/ansys11/email1.htm

http://www.ansys.com/special/ansys11/email1.htm

Ansys autodyn in_workbench_introduction

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