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Chapter 1 Introduction to AUTODYN
ANSYS AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-1
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Welcome!
Training Manual
• Welcome to the ANSYS AUTODYN training course! • This training course is intended for all new or occasional ANSYS AUTODYN s, regardless of the CAD software used • Course Objectives: • Introduction to ANSYS AUTODYN • Detailed understanding of how to set up, solve and post-process AUTODYN analyses • Detailed understanding of how ANSYS Workbench (in particular, Explicit Dynamics) and ANSYS AUTODYN can be used for combined solutions • Training Courses are also available covering the detailed use of other Workbench modules (e.g. DesignModeler, Meshing, Advanced meshing, etc.) • The ANSYS Explicit Dynamics Training Course is a pre-requisite for this course ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-2
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Course Materials
Training Manual
•
The Training Manual you have is an exact copy of the slides.
•
Workshop descriptions and instructions are included in the Workshop Supplement.
•
Copies of the workshop files are available on the ANSYS Customer Portal (www.ansys.com).
•
Advanced training courses are available on specific topics. Schedule available on the ANSYS web page http://www.ansys.com/ under “Solutions> Services and > Training Services”.
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-3
February 27, 2009 Inventory #002665
Introduction to AUTODYN
A. About ANSYS, Inc.
Training Manual
ANSYS, Inc. • Developer of ANSYS family of products • Global Headquarters in Canonsburg, PA - USA (south of Pittsburgh) – Development and sales offices in U.S. and around the world – Publicly traded on NASDAQ stock exchange under “ANSS” – For additional company information as well as descriptions and schedules for other training courses visit www.ansys.com
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-4
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Course Overview
Training Manual
• Chapter 1: Introduction to ANSYS AUTODYN • Chapter 2: AUTODYN Interface • Chapter 3: AUTODYN Basics –
Workshop 1: 2D Fragment Impact (Cylinder Impact)
• Chapter 4: AUTODYN and Workbench – – – – –
Explicit Dynamics 2D Processing Pre-Stressing Workshop 2: 2D Fragment Impact (Workshop 1 model set up in Explicit Dynamics) Workshop 3: Projectile Impacting Pre-stressed Container
• Chapter 5: Multi-material Euler Solver –
Workshop 4: Jet Impact
• Chapter 6: Euler Blast (Ideal Gas) Solver –
Workshop 5: Urban Blast
• Chapter 7: ALE Solver • Chapter 8: Mesh Free (SPH) Solver –
Workshop 6: Bird Strike
• Chapter 9: Material Models (Not available in Explicit Dynamics) • Chapter 10: Euler-Lagrange Interactions – –
Workshop 7: Explosive Demolition Workshop 8: Ship Blast
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-5
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS® AUTODYN® - Focus
Training Manual
• Transient dynamic wave propagation – Gases, Liquids, Solids + their Interaction (FSI)
• Non-linear – – – –
Material behaviour Structural behaviour /Interaction Fluid Structure Interaction
• Large/extreme deformation • Large/extreme strain and fragmentation • Robust Code / Established Algorithms
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-6
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS®AUTODYN® Solutions
Training Manual
Coupling Lagrange (FE) Solvers (Solids, shells & beams) Structural Response Complex Materials
Interactions
Euler (CFD) Solvers (Multi-material, Blast) Solid / Gas / Fluid Flow Blast Waves
Solid Impact FSI (Deforming Structures)
Bonding /
Combined Blast & Impact Loading
Coupling
Mesh Free Solver ALE Solver
Hypervelocity Impact
Fluid-Structure Interaction with Strong Structures
Brittle Material Fracture / Fragmentation
Bonding / ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-7
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS®AUTODYN® Interface Training Manual
Context-sensitive Help Linked to extensive and readable HTML Manuals
Set Up Model Interactively
Create and View Animations
Open Architecture
View Results
Subroutines Variables
Advanced FE & CFD Visualization Time Histories
Set Up Parallel Processing
Run Analysis Interactively
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
LS-DYNA Nastran ICEM-CFD
Access Extensive Material Library
GIF, MPEG, AVI, GFA
Visually Refreshed Stop / Start at any time Interrogate progress
Import Models
Load / Save Model Startup Files Restart Files
1-8
Host Configuration Decomposition Load Balancing
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS® AUTODYN® - Applications
Training Manual
• Typical Applications – Impact – Ballistic Protection • Low => Hypervelocity
– Energetic Systems – Blast Propagation – Blast Effects on Structures – Materials Research
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-9
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Material Models
Training Manual
• AUTODYN has an expanded / advanced selection of material models Equations of State
Strength Models
(Hydrodynamic)
(Plasticity)
Failure Models
Models Also Available in Explicit Dynamics (ANSYS) ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-10
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Discretization
Training Manual
• AUTODYN solutions are discretized in time and space • Spatial Discretization – Components are meshed into a (large) number of smaller elements (cells) or particles • Structured meshes (2D and 3D) • Unstructured meshes (3D) • Mesh free particles (2D and 3D) • Temporal Discretization – Time is split into a (large) number of small time steps (cycles) • Except for Euler sub-cycling, the time steps are the same for all Solvers • The time steps must satisfy stability criteria ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-11
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Lagrange Solvers
Training Manual
• Lagrange Solvers use mesh-based Lagrangian methods
Grid inside materials
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
No grid required for exterior space
1-12
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Euler Solvers
Training Manual
• Euler Solvers use mesh-based Eulerian methods
External space needs to be modelled (Void cells)
Grid is fixed in space and material flows through it
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-13
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ALE Solver
Training Manual
• The ALE (Arbitrary Lagrange Euler) Solvers uses a meshbased hybrid Lagrangian/Eulerian method Predominantly Eulerian flow
Predominantly Lagrangian deformation ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-14
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Mesh-free Solver
Training Manual
• The Mesh-free Solver uses the particle-based Smooth Particle Hydrodynamics (SPH) method
No particles required for exterior space
Geometry represented as particles
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-15
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Comparison of Solvers
Lagrange ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
Training Manual
Euler
ALE 1-16
SPH February 27, 2009 Inventory #002665
Introduction to AUTODYN
Symmetries – 2D
Training Manual
Planar Symmetry (Єzz = 0)
Generated Mesh
Axial Symmetry ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-17
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Symmetries – 3D
Training Manual
X symmetry
No symmetry
X & Y symmetry ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-18
X, Y & Z symmetry February 27, 2009 Inventory #002665
Introduction to AUTODYN
AUTODYN Parts
Training Manual
• Structured Parts – Structured group of elements of same element (solver) type • 2D – Quadrilateral solid – Shell
• 3D – Hexahedral solid – Quadrilateral Shell – Beam
– Implicit connectivity using a structured (I,J,(K)) grid – Generated in AUTODYN • Lagrange (Solid, Shell, Beam), ALE & Euler ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-19
February 27, 2009 Inventory #002665
Introduction to AUTODYN
AUTODYN Parts
Training Manual
Unstructured Parts – Unstructured group of elements of compatible element types • 2D – Quad / Tri solid – Line shell
• 3D – Hexahedral / Tetrahedral solid – Quad / Tri shell – Line Beam
– Uses node/element connectivity tables – Imported (e.g. from Workbench) • Lagrange (Solid, Shell, Beam) ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-20
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Combining Solvers
Training Manual
• The “best” Solver can be selected for each region of the simulation – Each AUTODYN simulation can have multiple Parts • Each Part is assigned a solver • The different Parts can interact with each other through – Bonding (s) – (Lagrange-Lagrange Interactions) – Coupling (Euler-Lagrange Interactions)
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-21
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Comparison of and Coupling Interactions
Training Manual
Euler/Lagrange Coupling
Lagrange/Lagrange
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-22
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN Standalone
Training Manual
• Start AUTODYN using the AUTODYN Executable – “C:\Program Files\ANSYS Inc\v120\AISOL\AUTODYN\intel\autodyn.exe” • Uses AUTODYN project data base / file system
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-23
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Analysis Systems – Setup Lagrange (structural Parts in Explicit Dynamics (ANSYS) • Interfaces to CAD • ANSYS Geometry tools • ANSYS Meshing tools
– Link to AUTODYN • • • •
Add Euler Parts Add Mesh-free Parts Use advanced material models Solve
• Component Systems – Setup and Solve standalone in AUTODYN • Uses Workbench Project data base / file system
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-24
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Workbench Bodies are imported as AUTODYN Parts • Workbench Parts are imported as AUTODYN Components Workbench
AUTODYN Component
Bodies
Part Parts
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-25
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Example: Mine Blast – Structural (Lagrange) Parts used for the vehicle and the ground – Euler Part used for the air – Cannot be solved in Explicit Dynamics (ANSYS) • Euler solvers are only available in AUTODYN • Material model for air is only available in AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-26
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Example: Bird Strike – Structural (Lagrange) Parts used for the wing – Mesh-free (SPH) particles used for the bird (ovoid) • Lagrange Part “filled” with SPH particles
– Cannot be solved in Explicit Dynamics (ANSYS) • Mesh-free solver is only available in AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-27
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Example: Metal cylinder with an explosive Core – Structural (Lagrange) Parts used for the metal cylinder and Explosive – Body interaction with no friction specified between explosive and cylinder – Cannot be solved in Explicit Dynamics (ANSYS) • Explosive material models are only available in AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-28
February 27, 2009 Inventory #002665
ANSYS AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-1
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Welcome!
Training Manual
• Welcome to the ANSYS AUTODYN training course! • This training course is intended for all new or occasional ANSYS AUTODYN s, regardless of the CAD software used • Course Objectives: • Introduction to ANSYS AUTODYN • Detailed understanding of how to set up, solve and post-process AUTODYN analyses • Detailed understanding of how ANSYS Workbench (in particular, Explicit Dynamics) and ANSYS AUTODYN can be used for combined solutions • Training Courses are also available covering the detailed use of other Workbench modules (e.g. DesignModeler, Meshing, Advanced meshing, etc.) • The ANSYS Explicit Dynamics Training Course is a pre-requisite for this course ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-2
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Course Materials
Training Manual
•
The Training Manual you have is an exact copy of the slides.
•
Workshop descriptions and instructions are included in the Workshop Supplement.
•
Copies of the workshop files are available on the ANSYS Customer Portal (www.ansys.com).
•
Advanced training courses are available on specific topics. Schedule available on the ANSYS web page http://www.ansys.com/ under “Solutions> Services and > Training Services”.
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-3
February 27, 2009 Inventory #002665
Introduction to AUTODYN
A. About ANSYS, Inc.
Training Manual
ANSYS, Inc. • Developer of ANSYS family of products • Global Headquarters in Canonsburg, PA - USA (south of Pittsburgh) – Development and sales offices in U.S. and around the world – Publicly traded on NASDAQ stock exchange under “ANSS” – For additional company information as well as descriptions and schedules for other training courses visit www.ansys.com
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-4
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Course Overview
Training Manual
• Chapter 1: Introduction to ANSYS AUTODYN • Chapter 2: AUTODYN Interface • Chapter 3: AUTODYN Basics –
Workshop 1: 2D Fragment Impact (Cylinder Impact)
• Chapter 4: AUTODYN and Workbench – – – – –
Explicit Dynamics 2D Processing Pre-Stressing Workshop 2: 2D Fragment Impact (Workshop 1 model set up in Explicit Dynamics) Workshop 3: Projectile Impacting Pre-stressed Container
• Chapter 5: Multi-material Euler Solver –
Workshop 4: Jet Impact
• Chapter 6: Euler Blast (Ideal Gas) Solver –
Workshop 5: Urban Blast
• Chapter 7: ALE Solver • Chapter 8: Mesh Free (SPH) Solver –
Workshop 6: Bird Strike
• Chapter 9: Material Models (Not available in Explicit Dynamics) • Chapter 10: Euler-Lagrange Interactions – –
Workshop 7: Explosive Demolition Workshop 8: Ship Blast
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-5
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS® AUTODYN® - Focus
Training Manual
• Transient dynamic wave propagation – Gases, Liquids, Solids + their Interaction (FSI)
• Non-linear – – – –
Material behaviour Structural behaviour /Interaction Fluid Structure Interaction
• Large/extreme deformation • Large/extreme strain and fragmentation • Robust Code / Established Algorithms
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-6
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS®AUTODYN® Solutions
Training Manual
Coupling Lagrange (FE) Solvers (Solids, shells & beams) Structural Response Complex Materials
Interactions
Euler (CFD) Solvers (Multi-material, Blast) Solid / Gas / Fluid Flow Blast Waves
Solid Impact FSI (Deforming Structures)
Bonding /
Combined Blast & Impact Loading
Coupling
Mesh Free Solver ALE Solver
Hypervelocity Impact
Fluid-Structure Interaction with Strong Structures
Brittle Material Fracture / Fragmentation
Bonding / ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-7
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS®AUTODYN® Interface Training Manual
Context-sensitive Help Linked to extensive and readable HTML Manuals
Set Up Model Interactively
Create and View Animations
Open Architecture
View Results
Subroutines Variables
Advanced FE & CFD Visualization Time Histories
Set Up Parallel Processing
Run Analysis Interactively
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
LS-DYNA Nastran ICEM-CFD
Access Extensive Material Library
GIF, MPEG, AVI, GFA
Visually Refreshed Stop / Start at any time Interrogate progress
Import Models
Load / Save Model Startup Files Restart Files
1-8
Host Configuration Decomposition Load Balancing
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ANSYS® AUTODYN® - Applications
Training Manual
• Typical Applications – Impact – Ballistic Protection • Low => Hypervelocity
– Energetic Systems – Blast Propagation – Blast Effects on Structures – Materials Research
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-9
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Material Models
Training Manual
• AUTODYN has an expanded / advanced selection of material models Equations of State
Strength Models
(Hydrodynamic)
(Plasticity)
Failure Models
Models Also Available in Explicit Dynamics (ANSYS) ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-10
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Discretization
Training Manual
• AUTODYN solutions are discretized in time and space • Spatial Discretization – Components are meshed into a (large) number of smaller elements (cells) or particles • Structured meshes (2D and 3D) • Unstructured meshes (3D) • Mesh free particles (2D and 3D) • Temporal Discretization – Time is split into a (large) number of small time steps (cycles) • Except for Euler sub-cycling, the time steps are the same for all Solvers • The time steps must satisfy stability criteria ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-11
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Lagrange Solvers
Training Manual
• Lagrange Solvers use mesh-based Lagrangian methods
Grid inside materials
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
No grid required for exterior space
1-12
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Euler Solvers
Training Manual
• Euler Solvers use mesh-based Eulerian methods
External space needs to be modelled (Void cells)
Grid is fixed in space and material flows through it
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-13
February 27, 2009 Inventory #002665
Introduction to AUTODYN
ALE Solver
Training Manual
• The ALE (Arbitrary Lagrange Euler) Solvers uses a meshbased hybrid Lagrangian/Eulerian method Predominantly Eulerian flow
Predominantly Lagrangian deformation ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-14
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Mesh-free Solver
Training Manual
• The Mesh-free Solver uses the particle-based Smooth Particle Hydrodynamics (SPH) method
No particles required for exterior space
Geometry represented as particles
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-15
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Comparison of Solvers
Lagrange ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
Training Manual
Euler
ALE 1-16
SPH February 27, 2009 Inventory #002665
Introduction to AUTODYN
Symmetries – 2D
Training Manual
Planar Symmetry (Єzz = 0)
Generated Mesh
Axial Symmetry ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-17
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Symmetries – 3D
Training Manual
X symmetry
No symmetry
X & Y symmetry ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-18
X, Y & Z symmetry February 27, 2009 Inventory #002665
Introduction to AUTODYN
AUTODYN Parts
Training Manual
• Structured Parts – Structured group of elements of same element (solver) type • 2D – Quadrilateral solid – Shell
• 3D – Hexahedral solid – Quadrilateral Shell – Beam
– Implicit connectivity using a structured (I,J,(K)) grid – Generated in AUTODYN • Lagrange (Solid, Shell, Beam), ALE & Euler ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-19
February 27, 2009 Inventory #002665
Introduction to AUTODYN
AUTODYN Parts
Training Manual
Unstructured Parts – Unstructured group of elements of compatible element types • 2D – Quad / Tri solid – Line shell
• 3D – Hexahedral / Tetrahedral solid – Quad / Tri shell – Line Beam
– Uses node/element connectivity tables – Imported (e.g. from Workbench) • Lagrange (Solid, Shell, Beam) ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-20
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Combining Solvers
Training Manual
• The “best” Solver can be selected for each region of the simulation – Each AUTODYN simulation can have multiple Parts • Each Part is assigned a solver • The different Parts can interact with each other through – Bonding (s) – (Lagrange-Lagrange Interactions) – Coupling (Euler-Lagrange Interactions)
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-21
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Comparison of and Coupling Interactions
Training Manual
Euler/Lagrange Coupling
Lagrange/Lagrange
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-22
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN Standalone
Training Manual
• Start AUTODYN using the AUTODYN Executable – “C:\Program Files\ANSYS Inc\v120\AISOL\AUTODYN\intel\autodyn.exe” • Uses AUTODYN project data base / file system
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-23
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Analysis Systems – Setup Lagrange (structural Parts in Explicit Dynamics (ANSYS) • Interfaces to CAD • ANSYS Geometry tools • ANSYS Meshing tools
– Link to AUTODYN • • • •
Add Euler Parts Add Mesh-free Parts Use advanced material models Solve
• Component Systems – Setup and Solve standalone in AUTODYN • Uses Workbench Project data base / file system
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-24
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Workbench Bodies are imported as AUTODYN Parts • Workbench Parts are imported as AUTODYN Components Workbench
AUTODYN Component
Bodies
Part Parts
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-25
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Example: Mine Blast – Structural (Lagrange) Parts used for the vehicle and the ground – Euler Part used for the air – Cannot be solved in Explicit Dynamics (ANSYS) • Euler solvers are only available in AUTODYN • Material model for air is only available in AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-26
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Example: Bird Strike – Structural (Lagrange) Parts used for the wing – Mesh-free (SPH) particles used for the bird (ovoid) • Lagrange Part “filled” with SPH particles
– Cannot be solved in Explicit Dynamics (ANSYS) • Mesh-free solver is only available in AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-27
February 27, 2009 Inventory #002665
Introduction to AUTODYN
Using ANSYS® AUTODYN in Workbench®
Training Manual
• Example: Metal cylinder with an explosive Core – Structural (Lagrange) Parts used for the metal cylinder and Explosive – Body interaction with no friction specified between explosive and cylinder – Cannot be solved in Explicit Dynamics (ANSYS) • Explosive material models are only available in AUTODYN
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
1-28
February 27, 2009 Inventory #002665
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