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Introduction to ANSYS nCode DesignLife Customer Training Material
Lecture 1: Introduction
Introduction to ANSYS nCode DesignLife
Welcome •
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Customer Training Material
Welcome to Introduction to ANSYS nCode DesignLife training course This training course is intended to be an introduction to the basics of the A N S Y S n C o d e D es i g n L i f e (D L ) product Training Manual is an exact copy of the slides
Introduction to ANSYS nCode DesignLife
About ANSYS, Inc. •
Customer Training Material
ANSYS, Inc. develops the A N S Y S family of simulation software – global headquarters in Canonsburg, PA (near Pittsburgh) – worldwide development and sales offices – 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
Introduction to ANSYS nCode DesignLife
ANSYS Family of Products •
Customer Training Material
ANSYS Work bench
– powerful interface for hosting ANSYS and third-party CAE tools
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Some Workbench products – A N S Y S D es i g n M o d e l er – used to create and modify CAD
geometry for use by solvers
– ANSYS Mechan ical – used to perform structural and thermal analyses using the M A P D L solver – ANSYS Mech anical A PDL – used to perform advanced mechanical and multiphysics analyses using the traditional command driven interface – A N S Y S n C o d e D es i g n L i f e – leading CAE durability software developed by HBM nCode to operate on ANSYS WB interface
Introduction to ANSYS nCode DesignLife
About HBM nCode •
Customer Training Material
HBM nCode has been developing durability software products for more than 25 years – n C o d e – n C o d e – n C o d e – n C o d e
G ly p h W o r k s D es i g n L i f e A u t o m a ti o n CDS
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World-wide leading developer of durability software
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USA headquarters located in Southfield, MI (near Detroit) – worldwide development and sales offices
Introduction to ANSYS nCode DesignLife
ANSYS nCode DesignLife Packages •
Customer Training Material
ANSYS nCod e DesignLife Standard
– base package with Stress-Life ( SN ) and Strain-Life ( EN ) analysis engines •
Four add-on packages (require additional license) – A N S Y S n C o d e D es i g n L i f e V i b r at i o n •
vibration fatigue for swept sine and PSD loadings
– A N S Y S n C o d e D e s i g n L i f e A c c e l er a t ed T es t i n g •
simulate accelerated virtual and physical tests
– A N S Y S n C o d e D es i g n L i f e W e l d s •
fatigue evaluation of seam and spot welds
– ANSYS nCo de Desig nL ife Parallelization •
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multi-threaded and licensed per core one core included in standard package only applicable for SMP
Introduction to ANSYS nCode DesignLife
ANSYS nCode DesignLife •
Customer Training Material
A N S Y S n C o d e D e s i g n L i f e is a CAE durability software product developed by HBM nCode and data integrated into the W o r k b e n c h platform
– Windows and Linux versions – finite element (FE) based CAE fatigue tool •
performs fatigue evaluation using FE results (e.g., A N S Y S .rst file)
– seamlessly integrated into W o r k b e n c h •
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easy communication with ANSYS Mech anical predefined WB analysis systems WB file management Engineering Data
– does not use ANSYS license - uses HBM nCode license •
Equivalent functionality as H B M n C o d e De s i g n L i f e – industry leading CAE durability software product – full access to standalone version of D e s i g n L i f e •
standalone version is not integrated into WB
Introduction to ANSYS nCode DesignLife
What is Fatigue? •
Customer Training Material
Fatigue damage is the initiation and/or growth of a crack under fluctuating loading – component seems to lose strength after multiple load applications •
appears to get tired, hence the name “fatigue”
– cracks are caused by cyclic plastic deformation in localized areas – failures occur at stress levels insufficient to cause failure in a single application
Introduction to ANSYS nCode DesignLife
Why Assess Fatigue? •
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Customer Training Material
Almost all structural components are subjected to some type of repeated or varying loading Difficult to detect progressive deterioration during fatigue process – damage is cumulative and unrecoverable – catastrophic failures can occur without warning
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1982 Battelle study estimated that between 80-90% of all structural failures have a fatigue mechanism – estimated annual cost in the US was $1.5B •
30 years ago!
– more recent cost estimates are in the order of $400B annually
Introduction to ANSYS nCode DesignLife
Example of Fatigue Failure •
Customer Training Material
de Havilland Comet - first jet airliner (1949) – flew higher than previous planes – suffered two tragic in-flight fatigue failures
– cracks initiated at sharp corners and propagated to failure – failure of pressurized fuselage caused total structural collapse •
68 people killed
Introduction to ANSYS nCode DesignLife
Summary •
Customer Training Material
A N S Y S n C o d e D es i g n L i f e
– developed by H B M n C o d e – equivalent functionality as H B M n C o d e D es i g n L i f e •
industry leading CAE durability software
– seamlessly integrated into A N S Y S W o r k b e n c h – easy communication with ANSYS Mechan ical •
Fatigue is the initiation and/or growth of a crack under cyclic loading
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Estimated 80-90% of all structural failures have a fatigue mechanism
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Fatigue failures occur at stress levels insufficient to cause failure in a single application – difficult to detect progressive deterioration during fatigue process – catastrophic failures can occur without warning
