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Abaqus and Add-ons

Seminář Modelica, 2013-04-12

František Havlíčedk

Synerma, Authorized Simulia Support Center

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have a better way of CAD data transfer,

will we be able to save time and cost?

CAD model during Designing CAD data before simulation

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have a robust nonlinear simulation tool,

will we be able stop making assumption and perform realistic simulations?

Stent deployment Wipe dispensing

Jenga

Awesome contact functionality

Large deformation with changing contact conditions Large material model database, linear/nonlinear

Advanced joining techniques (adhesives, delamination)

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have a tool that provides fast and accurate simulation results,

will we be able to reduce physical testing and cost?

“Predictive Crashworthiness Simulation in a Virtual Design Process

without Hardware Testing”,

BMW Group; SIMULIA Customer Conference, May 2010

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had one tool to model all the physics in a simulation,

wouldn’t that help us make better products?

Tire rolling on a road with water buildup Front-load washing

machine

Side curtain airbag deployment

Courtesy of TAKATA

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Overview Introduction

Abaqus/CAE

Abaqus Analysis Products

Add-Ons

Associative Interfaces

Abaqus Topology Optimization Module (ATOM)

Composites Model for Abaqus (CMA)

CZone for Abaqus (CZA)

Summary

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Introduction

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Introduction Abaqus analysis products

Abaqus/Standard, /Explicit & /CFD Family of mostly nonlinear engineering capabilities

Designed for production use

Mathematical basis is the finite element method

A short history Birth: 1978

Explicit: 1992

Abaqus 6.1: 2000

Target users Design engineers

Methods developers

Researchers

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Introduction Abaqus/CAE

Abaqus/CAE stands for: Complete Abaqus Environment

Not a simplified interface

A short history Birth: 1999

Evolution: 2000-2003

Windows native: 2004

Aggressive development: 2005+

Target users Dedicated Abaqus analysts

Advanced design engineers

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Introduction How does it all fit together?

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Solutions for the entire range of industries

Introduction

Architecture &

Construction - Earthquake loading

- Structural integrity Due to Fire

- Concrete analysis

- Soil-pore Interaction

- Failure Limits

Aerospace & Defense - Avionics

- Landing Gear

- Aerostructures

- Aeroengines

- Composites

- Defense Systems

- Space Systems

Life Sciences - Tissue Modeling

- Surgical Equipment

- Stents

- Drug Delivery

- Orthopedics

- Medical Packaging

Energy - Wave Loading on Rigs and

Pipelines

- Piping and Pressure

Vessels

- Thermal Analysis

- Blast loading

- Drop or Impact

High Tech - Thermal Cycling of Solder

Joints

- Drop Testing

- Vibration Analysis

- Semiconductors

- Circuit Boards

- Hand-held Devices

- Computers & Peripherals

Industrial Equipment - Nonlinear Stress Analysis

- Thermal Analysis

- Cyclic Loading

- Flexible Multibody

Dynamics

- Soil-Structure

Interaction

Consumer Packaged

Goods - Plastic and Glass Forming

- Conveyor Systems

- Container Drop

- Pressure Analysis

- Thermal Analysis

- Bottle Sealing

- Adhesives

Automotive &

Transportation - Chassis & Body

- Tires

- Interiors

- Crashworthiness

- Brake Systems

- Powertrain

- Electronics

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Abaqus/CAE

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Abaqus/CAE Market-leading support of Abaqus functionality

Comprehensive support for elements & materials

Fracture and debonding analysis

Composites

Rebar (reinforcement)

Contact modeling

Gaskets and pre-tensioned bolts

Submodeling

Adaptive remeshing

Connectors for mechanism analysis

And much more . . .

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Abaqus/CAE Modern graphical interface

Modular & well organized

Easy to learn & use

Object-action paradigm

Model Tree

Customizable toolbars

CAD-compatible

view manipulation

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Abaqus/CAE Geometry & Optimization

Create moderately complex geometry

Associative CAD interfaces preserve analysis attributes when geometry changes

Support for neutral geometry formats including IGES, STEP, VDA & STL

Complete set of geometry repair tools

Import Nastran .bdf and Ansys .cdb files

ATOM allows topology and shape optimization from within Abaqus/CAE

Solidworks Abaqus/CAE

Solidworks AI

Also available for CATIA V5 and Pro/Engineer

Bone geometry

imported from STL

file

Geometry repair

toolset

Shape optimization

Topology optimization

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Abaqus/CAE Powerful & flexible meshing

Fast, automatic free meshing

Semi-automatic hex meshing

Abstract away unimportant features using virtual topology

Boundary Layer Meshing for CFD analysis

Tools to create geometry from mesh

Semi-automatic hex meshes Automatic free mesh Automatic virtual topology removes

step-like feature

Mesh-to-geometry

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Abaqus/CAE Preferred tool for visualizing Abaqus results

High performance for large models

Automatic color coding

Transparency

View cuts

Animations

Probing

XY plotting

Path plots

Much more . . .

(Courtesy of AVL List GmbH)

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Powerful extensibility & customization

Abaqus/CAE

Automate repetitive tasks with macros

Create vertical applications for deployment of sophisticated workflows

Open-standard Python scripting language

Drag-and-drop GUI builder

Custom postprocessing tool Macro-manager and scripting language

Vertical application

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Abaqus Analysis Products

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Abaqus Analysis Products Abaqus/Standard

Based on implicit solution techniques Intended for static and structural dynamic events

Linear or nonlinear behavior

Wide range of multi-physics procedures: Static stress/displacement

Dynamic stress/displacement

Mode-based linear dynamics

Heat transfer

Coupled temperature/displacement

Coupled thermal/electrical

Acoustics

Pore fluid flow

More . . .

Earthen dam Bicycle frame stress Gasket sealing

Solder joint fatigue Electrical fuse heating

Tire noise Shaft seal insertion

Clip insertion

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Abaqus Analysis Products Abaqus/Explicit

Based on explicit time integration

Intended for high-speed transient dynamic events

Also suited for highly nonlinear quasi-static events

Range of solution procedures:

Stress/displacement

Thermal stress

Acoustic-structural coupling

Coupled Eulerian-Lagrangian (CEL)

Smooth Particle Method (SPH)

Bottle conveying

system Blow molding

Deep drawing Energy absorption Bottle drop

Metal rolling

Blast loading

Ballistic impact

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Abaqus Analysis Products Easy-to-use general contact

Concise whole-model contact definition

Accounts for large relative motion & friction

Not based on initial proximity

Robust numerical formulations

Minimal need for user intervention

Courtesy of Alcan Mass

Transportation Systems, Zürich

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Abaqus Analysis Products Extensive selection of materials

Metals, rubbers, and composites

Linear/nonlinear elasticity and plasticity

Isotropic or anisotropic

Rate and temperature dependence

Additional materials include:

Soils and rocks

Concrete and ceramics

Pastes and polymers

Damage & failure modeling

Test

Cast iron plasticity Human tissue

Viscoelastic rubber Viscous paste

Soil & rock Reinforced concrete Sheet failure

Bulk failure

Simulation

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Abaqus Analysis Products Fracture & crack propagation

Mesh-independent crack modeling with XFEM

Virtual Crack Closure Technique (VCCT)

Cohesive elements

Pulling tool Modeling debonding in a T-joint w/ VCCT

Test

Simulation

Bone fracture in sports injury

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Abaqus Analysis Products Comprehensive connector library

Model rigid and deformable mechanisms

Accurately idealize complicated connections

Restricts range of motion with locks & stops

Sophisticated behaviors such as friction, damping, elasticity, plasticity, damage

Building block approach

BEAM

WELD HINGE

UJOINT CVJOINT

TRANSLATOR

CYLINDRICAL BUSHING

Sampling of connection

types

Flap mechanism Spotwelds w/ failure

Landing gear mechanism w/

deformable parts

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Abaqus Analysis Products Modern large-scale linear dynamics

High-performance Lanczos & AMS eigensolvers

Time & frequency domain procedures

Random response & response spectrum

Integrated with nonlinear procedures

Mountinag Holes

Crack High stress location

Natural frequency of a turbocharger impeller

Response of radio bracket subject

to random vibrations

Simulation Test

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Abaqus Analysis Products Tightly integrated CFD

Targeted towards structural engineers

Incompressible transient or steady flows

Turbulent or laminar flows

Conjugate heat transfer

Fluid-structure interaction

Temperature contours

Electronics cooling

Exhaust Manifold Temperature Isosurfaces

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Abaqus Analysis Products Tightly integrated EMAG as part of Abaqus/Standard

Targeted towards structural engineers

Electromagnetics Procedures

Time harmonic eddy current analysis

Time transient eddy current analysis

Electrostatic Procedures

Piezoelectric analysis

Steady Electrical Conduction Procedures

Coupled Thermal-Electrical Analysis

Fully Coupled Thermal-Electrical-Structural Analysis

Magnetostatic Procedures

Magnetostatic analysis

Solenoid Valve Magnetostatic

analysis

Ink Jet Piezoelectric analysis

Spot Weld Fully CoupledThermal-Electrical-

Structural analysis

Induction Forming Time Transient Eddy

Current analysis

Induction Heating Time Harmonic Eddy Current analysis

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Industry leading solver performance

Abaqus Analysis Products

Parallel processing on low-cost cluster hardware

Jobs can be run parallel up to 128 cores with attractive licensing models.

GPU acceleration works with SMP & DMP and using multiple GPUs.

Key solver technologies:

Direct sparse solver

Iterative solver

AMS eigensolver

Domain decomposition explicit solver

9.4M DoF powertrain model (Courtesy Dana Holding Corp.)

Domain decomposition of a car

crash model

1

1.2

1.4

1.6

1.8

2

1.5 1.5 3.0 3.4 3.8

Sp

eed

up

vs. C

PU

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ly

Number of Equations (millions)

Abaqus 6.12 Multi GPU Execution 24 core 2 host, 48 GB memory per host

1 GPU/Host

2 GPUS/Host

A benchmark of three different models, ranging from

5 to 9 million DOF, shows a decrease in overall cost and runtime as the number of cores increases.

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Abaqus Analysis Products Upcoming highlight in 6.13: Discrete element method (DEM)

New method for analysis of non-continuous media

Handling of granular materials

Agriculture, pharmaceutical, oil and gas, mining

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Abaqus Analysis Products Upcoming highlight in 6.13: Multi-level adaptive mesh refinement for CEL

Cylinder dropping into water

Contact criteria Volume fraction criteria

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Abaqus/CFD

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Abaqus/CFD

Abaqus/CFD is the computational fluid dynamics (CFD) analysis capability offered in the Abaqus product suite to perform flow analysis

CFD solution in an integrated FEA-CFD multiphysics framework

Supported in Abaqus/CAE

Enables native FSI capability

Abaqus/CFD couples with Abaqus/Standard and Abaqus/Explicit through co-simulation engine

Significantly expands the set of FSI applications that SIMULIA can address independently

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Abaqus/CFD Incompressible, pressure-based flow solver

Transient (time-accurate) method

Energy equation for thermal analysis

Buoyancy driven flows (natural convection)

Iterative solvers for momentum, pressure and transport equations

Steady-State solver (6.13)

Turbulence models

Fluid material properties

CFD-specific diagnostics and output quantities

Arbitrary Lagrangian-Eulerian (ALE) capability for moving deforming mesh problems

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Fluid-Structure Interaction Coupling with Abaqus/Standard & Abaqus/Explicit is provided through the Co-Simulation Engine (CSE)

Enables Fluid-Structure Interaction (FSI) and Conjugate Heat Transfer (CHT) applications

Physics-based conservative mapping techniques are applied on the coupling interface

The CSE operates in the background and is largely transparent to the user

Structural Solver

Fluid Solver

( )f f f f f f f f f f

T

f f f f

T

f x y z

p t

K p

v v v

M V A V V K V C F

C V

V

s s s s s s s

s x y z

K t

u u u

M U C U U F

UΤ

Abaqus/Standard

Abaqus/Explicit

Abaqus/CFD

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Target Applications

Automotive

• Engine, exhaust manifold, cooling jackets

• Hydraulic engine mounts

• Disc brake system

• ABS, shock absorbers

Power/gas

• Pipelines, risers

• Heat exchangers (nuclear power)

Electronics

• Cooling of electronic components

• Manufacturing of integrated circuits

Industrials

• Flow limiters

• Seals

• Valves

• Heat exchangers

Medical

• Heart valves

• Blood flow

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Add - Ons

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Associative Interfaces

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Associative Interfaces Import parts and assemblies into Abaqus/CAE

Automatic: Both CAD and Abaqus/CAE running, one mouse click

Manual: Export with CAD to saved file, import with Abaqus/CAE

Direct transfer instead of .igs or .stp files minimizes loss of CAD data and resulting repair work

No need to re-do analysis features

Available for: CATIA V5 (bi-directional)

SolidWorks

Pro/Engineer (bi-directional)

NX (Parasolid translator sold by SIMULIA, associative interface sold by Elysium)

Bi-directional interfaces allow for geometry parameter updates from within Abaqus/CAE

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Associative Interfaces Features CATIA SolidWorks Pro/Engineer

Automatic Associative Import (Parts & Assembly)

Manual Associative Import (Parts & Assembly)

Direct Non-Associative Import (Parts & Assembly)

Import Sets or Publications

Import Material definitions

Bi-directional parameter update

Programming interface for parameter update

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Abaqus Topology Optimization Module (ATOM)

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Abaqus Topology Optimization Module (ATOM) SIMULIA’s design exploration and optimization tools

ATOM

Tuned for topology and shape optimization

Non-parametric

Can handle a very large number of design variables (about 100000 to 1000000)

Single objective optimization

Isight General purpose design exploration and optimization package

Parametric

Meant for small number of design variables (about 10 to 100)

Multi-objective, multi-discipline optimizations possible

Test Data Match

Topology optimization

ATOM Isight

DOE

Monte Carlo

Exploration

Taguchi RD

Six Sigma

Optimization Shape optimization

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Abaqus Topology Optimization Module (ATOM) Launched with 6.11

Embedded within Abaqus/CAE

Real world design

Parts and Assemblies

Nonlinear (contact, materials, large displacement)

Manufacturing restrictions

Export results to CAD

Topology Optimization

(removes volume)

Shape Optimization

(morphs surface)

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Abaqus Topology Optimization Module (ATOM) Example: Pull lever on a press is redesigned to retain stiffness at reduced mass

Initial volume

FEA model

Proposal

Design

Validate

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Abaqus Topology Optimization Module (ATOM) Example: Shape optimization reduces peak stress by 25%

Small variations can lead to large changes in the objective

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Abaqus Topology Optimization Module (ATOM) Benefits

Provides advanced capabilities for nonlinear structural optimization

Shortens design cycles and enables faster time-to-market

Provides engineers and product designers with:

Manufacturable designs which meet their structural needs

Improved design performance

Reduces costs associated with mass

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Composites Modeler for Abaqus (CMA)

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Composites Modeler for Abaqus (CMA)

Runs as a module of Abaqus/CAE

Determines the flat pattern needed

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Simulayt technology for design, analysis and manufacture of composite structures

Abaqus Analysis

Composites Manufacture

CATIA Design

Advanced Fiber

Modeler (AFM)

.Layup

Composites Link

Composites Modeler for Abaqus (CMA)

Composites

Modeler (CMA)

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CZone for Abaqus (CZA)

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CZone for Abaqus (CZA) “Composite crush” refers to disintegration and

loss of material integrity due to impulsive

compression loads.

When a composite material crushes in a

stable fashion, very large amounts of energy

are dissipated.

CZA is an add-on capability to Abaqus/Explicit

that allows modeling of crush behavior in

composite structures subjected to impact.

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CZone for Abaqus (CZA) Technology developed by Engenuity Ltd. and

integrated into Abaqus

CZA addresses crushing failure at crush front.

Recognizes “crush stress” as distinctive

mechanical property

Can vary from one type of composite to another

Can be calibrated using material coupon tests

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CZone for Abaqus (CZA)

Crush

Fracture

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Summary

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Summary Abaqus Analysis Products

Realistic simulation for all industries

Linear & nonlinear behavior

Sophisticated contact & material modeling

Advanced composite crush capability available

High-performance solvers

Abaqus/CAE Modern, easy-to-use interface

Integration with popular CAD packages

Comprehensive support for Abaqus functionality

Optimization module available

Advanced composite modeling capability available

Extensive customization capabilities

Single solution for all analysis needs

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