autodyn new features v61

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1/10 ANSYS AUTODYN ® v6.0/1 New Feature Highlights This document gives an introduction to some of the key features and enhancements available in the general release of the ANSYS AUTODYN software. For full details on these and other new capabilities please refer to the What’s New section of the ANSYS AUTODYN on-line help.

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  • 1/10

    ANSYS AUTODYN v6.0/1

    New Feature Highlights

    This document gives an introduction to some of the key features and enhancements available in the general release of the ANSYS AUTODYN software. For full details on these and other new capabilities please refer to the Whats New section of the ANSYS AUTODYN on-line help.

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    ANSYS AUTODYN v6.0 Features and Enhancements

    Next Generation of 3D Lagrangian Solvers New Improved 3D Multi-Material Euler Solver Improved Coupling of 2D and 3D Multi-Material Euler to Lagrange Parallel Capabilities for all 3D Structured Solvers/Models Rigid Materials/Bodies Combined Mechanical and Heat Conduction Analysis Advanced Composite Damage Models Import Unstructured Meshes Groups for Ease of Model Manipulation New and Advanced Rendering Options Updated On-line Help

    ANSYS AUTODYN v6.1 Features and Enhancements

    Parallel Capabilities for all 3D Unstructured Solvers/Models Further Enhancements to Multi-material Euler Solvers Enhancements to ANP Tet element Extended Part Summary Data Pre and Post Processing Usability Enhancements New Command Language (Beta Status)

  • ANSYS AUTODYN

    v6.0/1 New Feature Highlights

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    Solvers Next Generation 3D Lagrangian

    Solvers o Increased performance Shorter Runtimes

    o Reduced memory requirements Bigger Models

    o Increased flexibility 3rd Party Interfaces Complex Geometry

    o Volume Elements (Hex, Penta, Tet) Exact and Single Point Gauss

    Integration ANP-Tet (no volume locking) Multi-Material ANP Tet nodes (v6.1)

    o Shell (Quad, Tri) Isotropic Isotropic/Orthotropic Layered

    o Beam (Line) Working with: o Standard ANSYS AUTODYN material

    models o Contact / Eroding Contact

    o Rigid and Pinned Joins

    o Coupling to Eulerian Solvers

    o All Structured (IJK) Solvers

    o SPH

    Simulation of a bullet impact onto a transparent armor system using the new Hex and Tet elements

    Contours of damage in the glass of a transparent armor system during bullet penetration

    Typical efficiency comparison of the Hex solvers

  • ANSYS AUTODYN

    v6.0/1 New Feature Highlights

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    Simulation of sheet metal forming using the new Quad and Tri shell elements.

    Original mesh of workpiece (left); final workpiece shape (right) Solvers Improved 3D Multi-Material Euler

    Solver and Coupling o Multiple materials o Materials with strength o Coupling to rigid and deformable

    structures o Coupling with erosion o Remapping o Comparable to 2D Euler o Improved efficiency (v6.1)

    Simulation of a high explosive detonation in air inside a confined space

    Tungsten long rod penetration into steel

    More Accurate and Efficient 3D

    Euler-Lagrange Coupling o Cartesian cut cell o Exact geometric representation of rigid

    and deformable structures in Euler solvers Exact volume cover fractions

    o Automatic adaptation as structure deforms / erodes

    Simulation of a hard steel bullet impacting on a

    copper plate

    Improved Treatment of 2D and 3D Coupling in Combination with Erosion o Robust algorithm for eroding surfaces o Enhanced blending logic o Reduced levels of void insertion o Increased accuracy

    Underwater explosion near a cylindrical vessel using

    3D multi-material Euler-Lagrange coupling

  • ANSYS AUTODYN

    v6.0/1 New Feature Highlights

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    Parallel Processing All 3D Structured (IJK) Solvers are now

    parallelized o Lagrange o Shell o Beam (New) o ALE o Euler-FCT (New) o Multi-Material Euler

    Parallel 3D Euler-Lagrange Coupling o Automatic domain decomposition for

    Coupling All Unstructured Solvers/Elements are now

    parallelized (v6.1) o Automatic domain decomposition o Combined with Structured Solvers

    including contact and coupling

    Domain decomposition and example speed-ups for an Euler-FCT simulation run in parallel over a

    standard 100mbps Ethernet based Windows network

    Automatic decomposition of an Unstructured model

    Material Modelling New Rigid Material

    o Constrained or kinematic rigid bodies o Use in any unstructured element

    volume / shell / beam o Option to explicitly define mass / inertia o Interact with deformable

    bodies/materials Contact Euler/Lagrange Coupling

    Dialog window for Rigid material definition Advanced Orthotropic Strength and

    Damage Model o Orthotropic Strength

    General anisotropic failure surface Isotropic hardening Fiber reinforced composites Metals

    o Orthotropic Damage Interactive failure initiation criteria Orthotropic, fracture energy based

    softening/damage

    Prediction of damage levels in Kevlar-epoxy composite subject to impact at two velocities

    Updated Ceramic model

    o Extended Johnson-Holmquist model JH1 discontinuous form JH2 continuous form New data for SiC User damage law capability (v6.1)

    Simulation of long rod impact into ceramic/steel sandwich armor showing dwell phenomena

  • ANSYS AUTODYN

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    Heat Conduction o Heat generation

    shocks plastic strain / large deformation energy deposition

    o Heat conduction over time o Coupled with large deformation o 2D and 3D Lagrange/ALE solvers only o All equations of state

    Initial temperature distribution in a body (left)

    conducts through the body in time (right)

    Crushable Foam Strength Model o Strength model to allow modeling of

    crush behavior of foam under impact o Maximum principal stress limited to

    specified compaction stress o Compaction stress defined as function

    of volumetric strain 10pt piecewise external file Example simulation of the impact of a head protected

    by a foam bicycle helmet Pre-processing Mesh/Model Import

    o Extended to include LS-DYNATM (.k) MSC.NastranTM (.dat) Convert IJK Parts to Unstructured

    o Access to wide range of third party CAE tools and CAD

    o Import mesh material assignments boundary assignments loads initial conditions

    Model imported from ANSYS AI*Environment via import option

    Unstructured Parts o Copy o Fill o Delete o Zoning, Transform o Gauges

    Element / nodal Part Enhancements

    o General 2D Quad predef o General 3D Quad predef o Brick predef added to Parts wizard o Refine zoning option o Apply boundaries interactively o Polygon selection of nodes/faces o Extended Dezone options (v6.1)

    Interactive application of boundary conditions

  • ANSYS AUTODYN

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    Groups for Model Manipulation o User defined collection of nodes,

    elements or faces o Select Interactively

    On screen using polygon grab On screen by picking a surface

    o Apply/clear boundary conditions Nodal boundary conditions Face boundary conditions

    o Fill element groups Material Velocity Initial Conditions

    Group of nodes defined for subsequent boundary

    condition application

    Initial Angular Velocity

    o Initial angular velocity in additional to translation velocity

    o On the fly during Fill operations o Save as Initial Condition sets

    Initial angular velocity definition

    Post-processing Unstructured Parts

    o All standard rendering options are available for the new unstructured Parts

    Render by Parts or Components

    o Select and apply rendering options by Part or Component

    Examine shell sublayer data

    o Select sublayer data to review o Nodal data also now available in

    addition to element data General Slice Plane

    o Contour data on a user defined plane o Locate and orientate the plane

    independently of the mesh o Combine with solid contour opacity

    options

    General slice plane through concrete target highlighting damage during penetration by a hard projectile

    New Shading Option o Flat shading o Gouraud shading

    Round the shading at sharp corners

    Extended Lighting Options

    o Up to four light sources o Control properties of each source o Type

  • ANSYS AUTODYN

    v6.0/1 New Feature Highlights

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    Directional, Bi-directional, Spot, Point

    o Properties Ambience, Diffusivity,

    Specularity

    Obtain a shiny metallic effect using the new shading and

    lighting options

    Improved Rendering across Joined Nodes o Remove Joined edges/surfaces o Transparent contour across joins

    New SPH Rendering Options

    o Truncated contour plots only display particles within

    specified contour range o Fade outliners

    Transparency effect Highlight user specified

    elements/nodes New Zoom Fit option

    Visualize crack growth within an SPH discretized ceramic using the Truncate and Fade Outliner options

    Post-processing Extended Part Summary (v6.1)

    o Hourglass energy o Contact energy o External forces

    boundary contact coupling

    o Write to print file o Select as optional Part summary

    variables to plot as time history

    Examine Graphs (v6.1) o Time history o Profile plots

    External force on structure subject to mineblast

  • ANSYS AUTODYN

    v6.0/1 New Feature Highlights

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    AVI Movie generation (v6.1)

    o Generate AVI movies directly o Select compression algorithms

    installed on your system

    Movie of grenade fragmentation simulation

    New Command Language Command language (v6.1)

    o Record GUI operations o Replay/Modify operations o Load operations from previous

    sessions o Available only for Setup, Parts

    operations o Activate through ANSYS

    AUTODYN.ini file o Beta status

  • ANSYS AUTODYN

    v6.0/1 New Feature Highlights

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    Updated On-Line Help and Documentation Updated to include information on material models

    Access detailed information on each material model by pressing next to

    the modeling option