Midas nfx 2015 software features presentation

Total Analysis Solutions for Multi-disciplinary Optimum Design
midas NFX
Midas NFX Software Description

Part 1. Work environment..............
Part 2. Pre-post process functions..
Part 3. Analysis functions…………..
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Total Solutions for True Analysis-driven Design

Powerful, Fast and Affordable FEA

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A software for FEA professionals as well as Designers
midas NFX (Designer Mode) midas NFX (Analyst Mode)
 CAD model-based work environment
 Fast and simple way to perform simulation design with various
automated functions and minimal input requirement
Simplified Mode
(Basic Analysis on CAD Model)
Advanced Full Mode
(Precise Modeling and Analysis Control)
 From CAD model creation to finite elements meshing for all types of
mechanical analyses.
 With complex geometric modeling and various mesh generators,
accurate modeling and analysis, along with extensive result analysis
functions.
+
Analysis Mode can be easily changed
NFX Solvers
Linear Static (with contact) Nonlinear Static (Material/Geometry/Contact) Modal/Buckling (Prestress)
Heat transfer/Thermal Stress (Steady/Transient) Linear/Nonlinear Dynamic (Explicit included) Fatigue (S-N/e-N)
Multi Body System (Rigid/Flexible Body) CFD (Thermal/Fluid, Moving Mesh, Deflated Solver )
High Perf. Parallel Solvers (32/64 Bits) GPU Computing
Part 1. Work environment

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Optimized analysis efficiency for optimum design
Fast Analysis and Results Evaluation with
Minimum Operations
Immediate re-analysis in case of
change in CAD model with the
same condition transferred from
the step 1
Auto generation of
Customized
Analysis Report
Application in practice with Minimal
Learning
1 2
3
4

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Intuitive Workflow with minimum mouse operation
All operations can be performed simply
and conveniently in a few mouse clicks
• Automatic contact generation
• Removal of useless holes and fillets by Cleanup
Define Loads and Boundaries
Auto Meshing
Check Analysis Results and Generate Customized Report
Model after clean-up
and contact creation
Import CAD model

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Large Material Database
Properties for Structural/Fatigue/Thermal Analysis
(Safety factors included)
Assign Materials with Drag&Drop Feature
Upon registration of Basic Materials,
the Material database is
automatically added to New Project.
Material
properties DB
Database of More than 1000 Materials

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 Stabilize a new framework that fully supports 64-bit systems
 Memory use reduce & GUI improvement by development of new graphic engine optimized for large scale
model
 DB configuration and management efficiency to select and add / delete operations of the processing
performance improvement
526 parts
1,890 parts
Support of large-scale models and assemblies
1,502 parts
132 parts
45 parts

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 Support import of 12 CAD model types
Support for import of large range of CAD model types
Formats File Formats Product Structure
ACIS .sat, .sab, .asat, .asab R1 – R24
CATIA V4 .model, .exp, .session 4.1.9 – 4.2.4
CATIA V5
.CATPart, .CATProduct, .C
GR
R6 – R23 (V5 – 6R201
3)
IGES .igs, .iges Up to 5.3
Inventor
.ipt (V6 – V2014)
V11 – 2014
.iam (V11 – V2014)
NX .prt 11 – NX 8.5
Parasolid
.x_t, .xmt_txt, .x_b, .xmt_bi
n
10.0 – 26.0.151
Pro/E / Creo .prt, .prt.*, .asm, .asm.* 16 – Creo 2.0
SolidWorks .sldprt, .sldasm 98 – 2013
Solid Edge .par, .asm, .psm V18 – ST5
STEP .stp, .step 203, 214

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Part 3. Pre-Post Process Functions– CAD Model Cleanup
Intuitive interface for easy search
and identification of objects
(holes/fillets) to be removed
Display color
classification by sizes
Cleanup process for various
shapes/parts (automatic/general)
Micro-surface
Chamfering
around hole
Concaved part
Removal of small holes and fillets
using cleanup
Hybrid mesh created after cleanup
(Reduction in the numbers of elements/nodes
and improvement of element mesh quality)
Powerful CAD simplification tools

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Remove Holes Remove Fillets
Remove Faces/LinesMerge Faces
Powerful CAD simplification tools

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Part 3. Pre-Post Process Functions
Geometry auto-connection
Before auto-connect
No imprints between parts
After auto-connect
Imprints are created
automatically on whole model
Automatically create continuity
between faces and parts by
selecting all the parts together

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Mid-Surface Extraction
Manual
Auto
Auto Manual
Solid Model Shell Model
Mid-Surface Extraction
(Auto Manual)
Meshing Primary Mode Secondary Mode
Automatic and manual mid-surface extraction

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Automated contact definition and management
Assembly Model
Completed auto contact definition
(Total model check)
Individual contact definition
check
Contact Manager to conveniently check, revise and
manage contact definitions
Depending on the viewpoints of the contact surface, the shaded surface changes, which allows the user
to easily check the location of the contact surface.

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Auto-update of analysis model for simple re-analysis
in case of change in CAD model
By simple Drag & Drop of the analysis cases of the present model to the
revised model, all the loads, boundary conditions, analysis types and conditions
are automatically transferred to the revised model.
Comparison of
re-analysis results
Automatic transfer of all the conditions
based on the surface colors
irrespective of the analysis types and
similarity of the geometric shapes of
models
 Standardization of Analysis
 Designer’s analysis capability
empoweredReference Analysis Template Model
(Definition of analysis conditions associated with
surface colors)
Linear Static Analysis
Modal Analysis
Heat Transfer Analysis
After re-analyzing the revised model, the results before and after the revision can be
conveniently checked and compared in a multi-window view.
Nonlinear Static Analysis

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Simple and convenient
interface
Parallel processing based high performance automatic mesh generation
through a simple interface
Mesh density and shape control
Uniform mesh
generated using
Pattern
Dense mesh generated
around holes
Shape changes
considered Assembly model of 113 parts
(Elements: 640,000, Nodes: 1.06 million)
Mesh generation using multi-
core parallel processing
With parallel processing on a normal PC,
640,000 elements in 113 parts generated within 1 minute
Sec.
1 Core
2 Cores
4 Cores
108 sec.
76 sec.
54 sec.
Reduced
Reduced

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Part 3. Pre-Post Process Functions– Hexahedron dominant Hybrid Mesh Generation
Automatic Hybrid mesh generator
Elements: 84,629
Nodes: 63,395
Elements: 83,136
Nodes: 162,319
Hexahedral elements
Pyramid elements
Tetrahedral elements
Prism elements
General higher order tetrahedral mesh Hexahedral-Tetrahedral Hybrid Mesh
(same number of elements with approximately 1/3 of the nodes )
 Shortened analysis time & improved analysis results
Element distribution of hybrid mesh
(Color representation of each element type)
Hexahedral
Element
Pyramid Element
(Hexahedral-Tetrahedral
link element)
Tetrahedral
Element
Composition of hybrid element mesh
Hexahedral elements producing superb results are primarily generated at the
boundaries where maximum displacements/stresses are resulted. Tetrahedral
elements are partially generated at interiors where stiffness and mass
calculations are more meaningful.

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577,536 79,459
Nodal #
355,986 99,437
Element #
20.293 sec275.032 sec
Analysis time
(Linear static analysis)
86%
Tetrahedron Mesh Hybrid Mesh
72%
92%
The maximum stress
Comparison between Tetrahedron and Hybrid Mesh
228MPa 222MPa 2.7%

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 Optimal mesh can be created using a variety of meshers
 Surface/Solid Auto-Mesher, Map-Mesher
Considering the geometry adaptation point seed generation
 Check feature improvements / manipulation capabilities/ variety of high-quality mesh generation and management
Create optimal mesh with a variety of mesh generation methods
Automatic Generation
• Auto Meshing
: Curves, Solid, Plate
: 2D3D, Element Re-gen
: includes inner nodes/lines
• Mapped Mesh
: Curve, Solid, 4 nodes
: Curve defined volume
Density Control
• Density Control
: Element length, divide number
: linear changer, symmetry distribution
: Select by Mouse, table input, matching
• Define/check property
• Default value setting
• Distribution Pattern, Density Control
Extraction
• Extract, Rotation Extract, Swiping
• Projection, Off-Set, Fill
• Node 1D Element Extract
Curve 2D Element Extract
2D Element/Solid3D Extract
• Uniform, Non-Uniform spacing
• Geometry, Node, Element
based Extract
Control
• Node/Element table
• Node/Element group
: group, re-name, bool operation
• Element Parameter Change
• Check : contact condition, quality
• Move : translation, rotation,
mirror, scale Mesh Quality Check
(Graphic Result, Group)
Node Distribution
(angle, error)
Node matching
(projection, rate)
Define Size
Mesh Density Control (Node Distribution)

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Evaluation of mesh skewness through Mesh Quality Check feature
Skewness >40
Automatic separation of quality depreciating mesh through the
Cut-off setting
Skewness >30
Selection of poor
elements
Automatically
outputs poor
elements
1
2
Automatically revises poor
elements (2D Mesh)
3
Mesh quality checking tool

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Organization of results and auto-generation of practical report
Min: 0.028
Max: 0.145
Result graph along any specific line
Result inquiry at any location
(tags displayed)
Auto Report Generation
(customization possible)
Numerical result table
MS-Excel linked operations
Post-processing Result Tree
MS-Word Format Report
3D PDF Report

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Diverse and sophisticated post-processing graphics
Vector plot
Symmetrical plot
Analysis of each part of an assembly
with the virtual separation
Original results
Virtual transformation Checking changes in temperature using clipping at a specific plane
Slice plot of a specific plane
Divisive plot with respect to iso-
surface (Capped Plot)

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Special post-processing functions
Stream line results to evaluate fluid flows
Mesh deformation function (Moving Mesh)
Flux calculation at a specific pipe section

Part 1. Work environment................
Part 2. Pre-post process functions ..
Part 3. Analysis functions....………
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Part 2. Analysis Functions
Multi-disciplinary integrated structural/thermal/CFD analysis solutions
for optimal design
LinearStaticAnalysis
(Linear Contacts, Boundary/Joints)
Optimization
(Topology,Size optimization)
Heat Transfer/Thermal StressAnalysis
(Steady / Transient)
CFDAnalysis
(Thermal/Fluid,Moving Mesh)
FatigueAnalysis
Composite MaterialsAnalysis
Modal/BucklingAnalysis
(Prestress,Rigid/Joints)
DynamicAnalysis
(Time,Frequency Response, Random, Nonlinear Explicit)
(Prestress,Rigid/Joints)
NonlinearStatic/Quasi-StaticAnalysis
(Material/Geometry/Contacts)
Evaluation of Strength/Durability of
a Car Body
(Linear Static / Fatigue)
Evaluation of Drop Impact of Hard Disk
(Nonlinear Dynamic, Contact)
Optimal Design of a Connection Frame
(Topology Optimization)
Evaluation of Thermal
Deformation/Stress of a Heat Sink
(Linear Heat Transfer /Thermal Stress)
Total Solutions for
True Analysis-driven Design

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Extensive Element Library
 3D Element
 General Solid
Tetrahedron, Pentahedron, Pyramid,
Hexahedron
 Composite Solid (Pentahedron, Hexahedron)
 2D Element
 Shell, Plane Stress, Plane Strain,
Axisymmetric
 Composite Shell, Surface element
 1D Element
 Beam, Bar (Truss), Pipe, Rod, Cable, Gap
 Others
 Spring, Mass, Damper, Fastener
 Rigid Link, Interpolation Link, Bush
Solid Model
Shell Model Hybrid Model (Shell/Solid/Mass/Link)
Frame ModelHybrid Model (Solid/Shell/Frame)

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Various elements/loads/boundary conditions frequently used in practice
 Link Elements /Modeling
Rigid Link, Bolt Link, Spring, Fastener
 Loads
Self Weight, Concentrated Load, Moment, Pressure, Temperature,
Displacement, Centrifugal Force, Remote Load, Bolt Load,
Bearing Load
 Boundary Conditions
Pinned Constraint, Rotational Constraint, Fixed, DOF Constraint,
Symmetrical Constraint, Reference Shape based Constraint
(Cylinder, etc.)
Remote Load
Bolt Model+ Contact
Bolt Links
• Rigid Link+Beam Element
• Bolt Load
Check fastening forces
from Axial
Forces/Stresses in Bolt
LinksDeformation, Strength &
Vibration of Impeller
(Centrifugal, Prestress mode)

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Subcases to analyze results of individual load cases and combinations
Subcases & Results Combinations of various load conditions
Separate Results of Defined Subcases
 In case of unacceptable results of the total load, causes
are identified by analysis of results for individual loads.
Assign Load/Boundary conditions to Subcases simply by Drag & Drop
(Possible to define multiple Subcases using a single Analysis Case)
Combination Factors (Total Force=aiPi)

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Fast and accurate analysis using high-performance elements,
parallel solvers & contact
 Linear Static: Displacement / Stress / Safety Factor results, Thermal Displacement / Thermal Stress, Prestress,
Subcases and Result Combinations of each loading case, Evaluation for suitability of Mesh density
 Modal / Buckling: Natural Frequency / Mode Shape / Modal Participation Factor / Effective Mass Results,
Prestress, Assignment of Range of Eigenvalue calculation, Missing Eigenvalue check (Sturm Sequence)
 32 / 64bit high-performance Parallel Solvers: Multi-Frontal, AMG, Block Lanczos
 Linear Contacts: Welded, Sliding, Rough, General, Friction, Interpolation link
Modal analysis of a track rail
(4th mode, Shell / Frame model)
Simulation of lens mount movement along rails
(Linear sliding contact)
Relative deformation and bolt stresses
using linear sliding contact

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Adaptive mesh analysis for reliable analysis results
Convergence-based reliable meshing that even beginners can use
 Applicable to Linear static, Steady state heat transfer analysis
 Mesh refinement using the error criteria by Zienkiewicz-Zhu
 Mesh convergence criteria: Stress/Strain, Flux/Rate of change in temperature gradient
 Auto-detection of singularities to prevent excessively fine mesh
 Local areas of interest can be selected: curve, surface, solid
200
300
400
500
600
1 2 3 4 5 6 7
Stress(N/mm2)
Solution Number
Change in maximum stress in local area
Mesh Refinement by Adaptive AnalysisInitial Mesh in Region of interest

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Modal Analysis considering prestress & relative motion
between parts of an assembly
Prestress Modal Analysis
 Consecutive Analysis of two Subcases
Analysis of prestress conditions reflected in
the stiffness of the structure followed by
eigenvalue analysis
Linear Contact supported
 Modal Analysis reflecting the relative
motion between parts
 Welded contact, Sliding, Interpolation link
Modal Analysis of impeller for rotational condition
(Prestress Mode, Centrifugal Force)
Prestress Modal Analysis composed of 2 Subcases
General Welded Contact Behavior
Sliding Contact
(Relative Motion)
Frequency Response Analysis Results
(Difference in maximum frequency responses)
Contact Behavior Comparison
(Behavior of Rail Part)

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Buckling Analysis considering relative motion between parts of an assembly
 Parallel Block Lanczos Solver
 Applicable to all elements including composite
materials
 Analysis Results
 Eigenvalues (factor), Mode shapes
 Stress, Strain, Strain energy, etc.
 Possible to define the range of eigenvalue
calculation
 Missing Eigenvalues Check (Sturm Sequence)
 Linear Contact supported
Material and geometric stiffness calculated
from linear static analysis is reflected in the
stiffness of the structure followed by
eigenvalue analysis
Buckled Shape of a composite panel containing an internal hole
(Composite shell elements used)
Buckling Analysis & Buckled Shape under the condition of
welded contact
Discontinuous Hexahedral Mesh
(Continue result)
Analysis of a complex assembly model
(Linear Contact)
Buckling Analysis
composed of 2 Subcases

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Heat transfer Analysis of BLU
(Application of thermal Contact to Hexahedral/Tetrahedral hybrid mesh)
Heat transfer Analysis of LED street light assembly model
(Application of Thermal Contact)
Heat Transfer/Thermal Stress Analysis accomplished by only one Analysis
 Steady State / Transient State Heat Transfer Analysis (Temperature-dependent material model, Nonlinear
Radiation)
 Heat Generation, Conduction, Convection, Radiation (Cavity Radiation: Closed/Open conditions, Radiation
Shape factor automatically calculated)
 Thermal Contact supported (Conduction between discontinuous parts)
 Independent Thermal Stress Analysis Case provided (Heat Transfer automatic coupling with linear static)
Heat transfer & Temperature distribution due to heat cavity radiation within an
LED Lamp
Cavity Radiation
Neglected
Cavity Radiation
Considered
Comparison of Temperature distribution analysis
results and Thermographic measurements (Tolerance Level: 3%)
Analysis Results
Thermographic
measurement

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Effective Transient Heat Transfer analysis using Sensors
 Analysis automatically terminated based on defined criteria⇨ Reduction in Analysis Time based on imposed
special conditions
 Sensor: Maximum/Minimum/Average criteria specified within specific domains
 Temperature based Sensor (below/over reference value)
 Analysis terminated when the rate of change in temperature is less than a specified reference value
Transient heat transfer analysis of a ball
valve (Sensor used)
When sensor is used, Analysis is completed in 41 sec
General Analysis condition (60 sec)
Evaluation of temperature distribution inside a
Manifold
(Transient heat transfer analysis)

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Step - 1 : Transient Heat Transfer Analysis
Step - 2 : Temperature Extract by time period
Step - 3 : Temperature  Heat Stress
Step – 4 : Non-linear Analysis
Transient Non-linear
heat stress analysis
(Automated process)
Temperature change in
time
Shape change in time
Transient Heat Transfer Analysis
considering thermal load
&
Nonlinear Transient Heat Transfer analysis

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Linear Dynamic Analysis of superior performance
and practical applicability
 Linear Dynamic Analysis by Direct and Modal Response methods
• Transient Response
• Frequency Response
 Possible to convert Static Load into Dynamic Load⇨ Various loading
conditions converted
 Auto Time Step supported
 Random, Prestress conditions considered
Evaluation of soundness of semiconductor equipment
(Frequency Response Analysis)
Evaluation of stress and behavior under repeated
opening and closing of a door (Transient Response
Analysis)
-150
-120
-90
-60
-30
0
30
60
0.001 0.01 0.1 1 10 100
-150
-120
-90
-60
-30
0
30
60
0.001 0.01 0.1 1 10 100
Evaluation of frequency response of a DVD-Rom due to
electro magnetic force (Frequency Response Analysis)

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Database of design response spectrums
 Various design spectrum database
• Euro code (2004), IBC2000 (ASCE7-98), UBC (1997)
• Korea, Japan, China (JTJ)
Select/Define Design Spectrum
Response Spectrum Auto-generation
Response Spectrum Analysis

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Test
Results
NFX
Analysis Results
Comparison with
Linear Analysis
Nonlinear Analysis considering material/geometry/contact nonlinearity
 Nonlinear Material: Elasto-plastic model, Hyperelastic models (Mooney-Rivlin, Ogden, Blatz-Ko, etc.)
 Nonlinear Geometry: Large deformation, Large rotation, Follower force
 Nonlinear Contact: Surface to surface contact/Single surface contact, Sliding/Rough/General Contact (friction supported)
 Automatic load steps supported, various Iterative methods/Stiffness update method and Convergence criterion provided
 Status of convergence and interim results during analysis, re-analysis (restart) provided
Nonlinear Contact Analysis
of a boot seal
(Single Surface Contact)
Direct input of Test Data
Forced, inserted Rubber
Analysis
Buckling Analysis of polyethylene
container (geometric nonlinearity).
Comparison with real experiments: Reliability confirmation

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Advanced Nonlinear Dynamic Analysis (Explicit/Implicit)
 Nonlinear Material: Elasto-plastic model, Hyperelastic models (Mooney-Rivlin, Ogden, Blatz-Ko, etc.)
 Nonlinear Geometry: Large deformation, Large rotation, Follower force
 Nonlinear Contact: Surface to surface contact/Single surface contact, Sliding/Rough/General Contact (friction supported)
 Accurate and convenient analysis using various elements including Hexahedron, Higher-order Tetrahedron, Pyramid, etc.
 Auto-calculation of safe time steps by elements and various Mass Scale/Damping supported
 Applications to Molding/Processing Analysis using Explicit/Implicit Analysis Sequentially Coupled
Buckling Analysis of a box
Subjected to impact
Laptop drop analysis
Head - Instrument panel impact

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Various functions and outstanding performance
for practical design analysis
Rubber
Time step
Metal 1.5E-7 sec
Rigid material 2.5E-6 sec
Contact definition
between solids
Metal
Enhanced performance using
Rigid materials
Contact
definition
(De-bond)
Contact separation/re-contact
Initial Shape
Contact Separation
 Separation of contact/Re-contact functions provided
 Mesh Deletion under defined criteria for explicit analysis
 Auto constraint of Rigid Body through selection of Rigid Material ⇨ Improved performance
 Re-start function provided to link to Subcases ⇨ Sequential Coupled Analysis supported
 Enhanced Parallel processing using Multi-core processors
Mesh deletion
Performance improvement using
Multi-cores

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Topology Optimization reflecting static/dynamic analysis &
manufacturing process
 Analysis types that can be coupled: Linear Static, Modal, Frequency Response
 Possible to specify Limitations and Design conditions such as Stress, Displacement, Volume or Manufacturing conditions
(draw direction/symmetric conditions)
 Simultaneous optimization compatible with various operational and load conditions
 Analysis model auto-regeneration & Mesh smoothing functions (without separate CAD operation)
 Other practical features of convenience: Mode trace, Definition of design/non-design domains, Default value setup
Process of using topology optimization design
Design domain defined
Topology optimization Creation of
analysis model
Optimized design retaining the
maximal eigenvalue
Topology Optimization
considering manufacturing process
Eigenvalues History
Manufacturing (Draw direction)
condition
Design evaluation
Without
condition

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Case studies of Advanced Design Concept using topology optimization
 Design Objective: Minimize volume
 Analysis Condition: Frequency response analysis
 Design Condition: Displacement limited to 1.4mm
 Design Objective: Maximize stiffness
 Analysis Condition: Linear static analysis
 Design Condition: Reduce weight by 45%
Design domain
Operational load
Displacement limitedDesign domain
Constraint
Equivalent
loadSymmetry
77%
weight reduced
Compliance
Comparison with initial Design
Volume history Displacement history

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 Interact with all types of Heat/Structural Optimization
 Design Variable of property/material : Intuitive size optimization
 Design Sampling
Various Methods (FFD, CCD, OA, LHD) & 1D Parameter Study
Correlation between Design variable & response Analysis
 Size Optimization by Approximate Model: Kriging model, Polynomial Regression model
2D/3D Graphic tool for approximate model analysis
Sampling & Response Face
Generation
1.Design Area Set 2.Optimization
3.Parameter Modeling4.Size optimization
DV1
DV2
DV3
DV4
DV3
DV2
Size Optimization Analysis

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Simple evaluation of Fatigue/Durability with minimum data
 Independent post-processing features provides (No separate/additional analysis required)
 Fatigue Life, Results of Damage level provided
 Linear/Multi linear S-N Curves by materials supported
 Stress Evaluation: Equivalent stress, Signed Von Mises (ductile materials), Principal stress (brittle materials), Shear
force, maximum stress, minimum stress and mean stress
 Rainflow Counting, Mean Stress Correction (Goodman, Gerber) supported
Evaluation of Fatigue Durability of a medical Stent
Operational shape and
Stress distribution
Fatigue life
Fatigue Analysis based on separate S-N Curve definitions for different materials
Test data input Direct input
Results of Fatigue life
Based on mixed definitions

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Enhanced Fatigue Analysis Functions
Fatigue Analysis dialog boxFatigue analysis for time-dependent loading
Operational shape and
stress distribution
Fatigue life
e-N Diagram dialog box
 Addition of Strain-Life (e-N) Fatigue Analysis Method
• Mean Stress Correction: Morrow, SWT (Smith-Watson-Topper) supported
 Fatigue Analysis in Time Domain (Fatigue Analysis for time-dependent load/stress history)
• Automatic definition of Fatigue Load for stress results at individual steps
• Direct Use of Material nonlinear analysis results (Nonlinear stress/Strain history)
 Rainflow counting option (Quick Counting)
• ASME Standard, Reduction in computation time

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Intuitive GUI and dedicated pre/post-processing for modeling
& practical analysis
 2D / 3D Composite materials (Linear / Nonlinear) supported
 Failure Theory
Hill, Hoffman, Tsai-Wu, Maximum stress, Maximum strain, NASA LaRC02
 Failure Criteria
Failure Index, FE Failure Index, Strength Ratio
 Property Matrices (A, B & D) calculation, Definition of various material directions (Angle, Coordinate system, Vector, etc.)
 Global Ply ID supported, Top/bottom fiber results per ply produced
Ply Maximum/Minimum results
Ply results by elements
Composite wind turbine blade
(Geometric nonlinear analysis)
Example Analysis of composite
material solid

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Impressive analysis speed for large scale models
Linear Static Analysis Linear Static Analysis Linear Static Analysis
Modal Analysis
(50 Modes)
Linear Static
Analysis
(nonlinear contact)
Solid Mesh (156,862)
Nodes (272,597)
Degrees of
Freedom (817,791)
Nodes (303,347)
Degrees of
Freedom (916,890)
Shell/Beam Mesh
(156,862)
Nodes (272,597)
Degrees of
Freedom (951,378)
Shell Mesh (170,123)
Nodes (162,391)
Degrees of
Freedom (974,346)
Nodes (280,060)
Degrees of
Freedom (840,180)
32bits 64bits 32bits 32bits 64bits 64bits
AMG MFS AMG AMG AMG MFS MFS
232 sec 149 sec 138 sec 548 sec 160 sec 1.16 Hour 51 sec
1010 sec,
No of iterations: 27
 1 time: 37 sec
※ MFS (Multi-frontal, Direct Method), AMG (Algebraic Multigrid, Iterative Method)

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NAFEMS Benchmark tests provided
Pinched cylinder with rigid diaphragms
(K.Y.Sze, W.K.Chan & T.H.H.Pian, Geometric Nonlinearity)
Sliding and rolling of a ring on a rigid surface
(NAFEMS, Boundary Nonlinearity)
Necking of a circular bar
(J.C. Simo, T.J.R. Hughes, Material/Geometric Nonlinearity)
Stiffened cylindrical panel
(NAFEMS, Material/Geometric Nonlinearity)

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Benchmarking Tests/Verification of Reliability for practical examples
Material/Geometric Nonlinear Analysis
(Shell element, Large Deformations, Distributed Load)
Linear Static Analysis
(Solid element, Linear contact, Temperature load, Selfweight)
Max. Deflection
midas NFX 0.67 mm
Program N 0.66 mm
Final Temperature
midas NFX 118.0 C
Program A 117.6 C
Heat Transfer Analysis (Transient)
(Solid element, Temperature condition, Convection)
P=0
P=500
Material/Geometric Nonlinear Analysis
(Shell element, Pressure load, Moment load)
Max. Stress
midas NFX 0.156 GPa
Program A 0.157 GPa
Explicit Dynamic Analysis
(Solid element, Rubber material, Contact)
Midas NFX
Program D
Nonlinear Contact Analysis
(Solid element, Enforced displacements)
Contact Load
midas NFX 10.88 N
Program N 10.87 N

Midas nfx 2015 software features presentation

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Midas nfx 2015 software features presentation