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Fnte Element Solut Ons: LS-DYNA and More

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0% found this document useful (0 votes)
196 views15 pages

Fnte Element Solut Ons: LS-DYNA and More

Uploaded by

Nikhil
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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LS-DYNA and more

F N TE
ELEMENT
SOLUT ONS
DYNAmore GmbH
Portfolio
▪▪ Software solutions
▪▪ Method development
▪▪ Support and consulting
▪▪ Engineering services

DYNAmore GmbH ▪▪ IT solutions for CAx and data management


processes
▪▪ Training and information sessions
▪▪ Conferences
DYNAmore GmbH is the largest distributor of consulting and support for modern, massively
the LS-DYNA simulation software worldwide. parallel computer systems.
We also offer a full complement of services We are proud that more than 800 customers,
to our software solutions: expert support in both in Europe and abroad and both from Facts
all areas of application for the LS-DYNA and industry and academia trust our expertise,
▪▪ Approx. 150 employees
LS-OPT software packages and FEM calculation including numerous automotive manufac-
▪▪ Subsidiaries in Germany, Sweden, Italy, France,
services as well as general consulting on any turers and suppliers. DYNAmore‘s head
Switzerland and the USA
questions concerning structural dynamics. office is located in Stuttgart, but we also
▪▪ Offices in Ingolstadt, Dresden, Berlin, Langlingen,
What is more, our fields of expertise include have offices in Berlin, Sindelfingen, Wolfsburg,
Wolfsburg, Linköping, Gothenburg, Turin,
pilot and development projects for simulating Dresden, Langlingen and Ingolstadt and sub-
Versailles, Zurich and Dublin/Ohio
nonlinear dynamic problems, software sidiaries in Sweden, France, Italy, Switzerland
▪▪ 5 service centers at customers’ sites
development for solver technologies and and the USA.
▪▪ More than 800 customers from industry and
simulation data management as well as
research, both in Europe and abroad (including
many OEMs)
▪▪ Worldwide use of our ATD models
▪▪ FEM experience since the early 1980s
▪▪ Ongoing development of LS-DYNA and LS-OPT

DYNAmore at a glance
2 3
LS-DYNA
LS-DYNA is one of the world‘s leading finite In addition, we offer linear and nonlinear FEM
element software systems. It is used for as well as particle methods, EFG, SPH, SPH and
mathematical simulation of profoundly DEM, electromagnetic solvers and fluid solvers
nonlinear physical problems in industry and for explicit and implicit time integration.
research. LS-DYNA is suitable for investiga-
ting the phenomena of structural-dynamic LS-DYNA is primarily used in the automotive,
problems such as large deformation, material aviation and aerospace industries. However,
failure and complex contact conditions. Typical LS-DYNA is also increasingly employed in
areas of application for the solver are: the fields of biomechanics, shipbuilding, rail
vehicle construction and the building industry,
▪▪ Crashworthiness
as well as in the defense and consumer goods
▪▪ Passenger safety
industry.
▪▪ Metal forming
▪▪ Collision and drop tests
▪▪ Penetration problems
▪▪ Perforation problems
▪▪ Fluid-structure interaction
▪▪ Thermal-mechanical coupling
▪▪ Explosion
▪▪ Impact

One-Code-Strategy
One of LS-DYNA’s unique selling points
is the One-Code-Strategy. This allows
many features to be combined with
each other, frequently making effective
cross-process simulation viable. This is
due to seamless integration of different
solution algorithms, requiring the follo-
wing software properties:

▪▪ Multi-physics
▪▪ Multi-stage
▪▪ Multi-processing
▪▪ Multi-scale

Software
Courtesy of Daimler AG

4 5
Engineering services
DYNAmore provides extensive services for
numerous tasks in simulating nonlinear struc-
tures. Here, we mainly focus on both conven-
tional and pilot projects and a variety
of industries.

Courtesy of Opel Automobile GmbH

Typical projects include


Courtesy of
Audi AG ▪▪ Automotive development in the ▪▪ Designing restraint systems
area of side impact ▪▪ Designing occupant protection for
▪▪ Automotive development military vehicles
in the area of pedestrian protection ▪▪ Seat design for aircraft seats
▪▪ Automotive development ▪▪ Designing explosion chambers for
in the area of frontal impact removing weaponry
▪▪ Automotive and aerospace development ▪▪ Designing crash barriers to achieve opti-
of seat models mum absorption of energy in collisions
▪▪ Simulations for designing drivers’ cabs ▪▪ Modeling injuries in human-robot
Courtesy of
for utility vehicles interaction
Ford Forschungszentrum Aachen GmbH ▪▪ Designing a brake for freight trains ▪▪ Developing active hood systems for
▪▪ Designing child seats pedestrian protection
▪▪ Research work in biomechanics ▪▪ Developing seats to minimize whiplash

Engineering
▪▪ Designing presses and tools for injuries
deep-drawing

Courtesy of
BMW Group
6 7
LS- PrePost PRIMER
The pre- and post-processor LS-PrePost can be the newest trends and developments. No Oasys PRIMER from Arup is a pre-processor
used to modify input decks and visualize the separate license is required for LS-PrePost developed exclusively for LS-DYNA. The advan-
results computed in LS-DYNA. An intuitive gra- – the program can be used together with tage is that all data from the keyword file are
phical interface makes the program extremely LS-DYNA. interpreted and no data can be accidentally
user-friendly. LS-PrePost benefits from further lost or corrupted.
ongoing development and improvements. This
allows quick and uncomplicated integration of
Benefits
▪▪ Data integrity
Scope of functions ▪▪ Easy to find and fix modeling errors
▪▪ Import of Nastran, IGES, VDA, ▪▪ Saves CPU and operating time
I-DEAS-Universal and Step files ▪▪ Easy and quick to access all LS-DYNA data
▪▪ Print formats: PNG, TIFF, JPG, BMP, ▪▪ Rapid understanding of the model structure
PCX, PS, PSIMAGE, GIF, VRML2 ▪▪ Special tools, such as:
▪▪ Video formats: MPEG, AVI - Spot weld generation
▪▪ Command line interface - Airbag folding
▪▪ Loading and editing of LS-DYNA - Seatbelt fitting
keywords - Mechanism (e.g. for seat adjustability)
- Replacement of parts, etc.
▪▪ Easy to learn and operate
▪▪ Reduces time spent on assembly and modifications
▪▪ Increases number of fault-free LS-DYNA runs
▪▪ Multiple users can work on different components
at the same time

DYNAFORM
DYNAFORM from eta is an integrated pre- tion and numerous automated functions.
and post-processor for forming processes. This means simulation setup is fast, even in
It reduces the time needed for preparation the case of complex forming processes. Furt-
and consequently the costs incurred for the hermore, new tool designs can be created and
tooling design and the development cycle. existing designs can be imported.
DYNAFORM impresses with its ease of opera-

Features

Pre- and post-processors


▪▪ Auto setup
▪▪ Automatic mesh generation
▪▪ Drawbead definition
▪▪ Process definition
▪▪ Automatic contact definition
▪▪ Tailor-welded blanks modeling
▪▪ Range of functions can be expanded

Courtesy of Egro Industrial Systems AG

8 9
LS- OPT GENESIS
LS-OPT is LST LLC‘s standalone program for GENESIS is a fully integrated software package For a seamless integration of GENESIS and
optimization. It is eminently suitable for resol- for finite element analysis and design optimi- LS-DYNA the optimization software ESLDYNA
ving highly nonlinear optimization problems zation, which has been developed by VR&D. can be used. ESLDYNA takes advantage of the
and therefore ideal for use in combination The analytical capabilities include: capability of GENESIS to solve large scale op-
with LS-DYNA. It is however possible to com- timization problems based on the responses
▪▪ Statistical, normal modes
bine LS-OPT with any other software package from a nonlinear finite element analysis.
▪▪ Analysis of direct and modal frequency
at any time. Multidisciplinary problems can
▪▪ Random response analysis
thus also be solved. The program is suitable ▪▪ ESLDYNA Optimization can handle
▪▪ Heat transfer
for solving system identification problems and a very large number of design variables
▪▪ Calculating system buckling
for stochastic analysis as well. The main appli- ▪▪ Reduced computational cost
cation areas for LS-OPT are: ▪▪ Ease of use enhanced by the
Design optimization is based on the Advanced
Design Studio plugin
▪▪ Optimization Approximation Concept for identifying an ideal
▪▪ Seamless integration between LS-DYNA
▪▪ System- and parameter identification design efficiently and reliably. Actual optimiza-
and GENESIS
▪▪ Design exploration tion is achieved with the tried-and-tested DOT
▪▪ Easy implementation of Shape, Sizing,
▪▪ Sensitivity studies and BIGDOT optimizers, also available from
Topology, Topometry, Topography, and
▪▪ Robustness analyses VR&D. Design capabilities include:
Freeform design changes
▪▪ Topology ▪▪ Multiple loading conditions
▪▪ Shape
▪▪ Size
▪▪ Topography
▪▪ Topometry and freeform

LS- TaSC
design optimization

VisualDOC
The LS-TaSC topology and shape computation
tool is developed by LST LLC. It focuses on
topology optimization of nonlinear problems
involving dynamic loads and contact condi-
tions. Modern mathematical programming The VisualDOC software for multidisciplinary
methods allow multi-disciplinary topology design, optimization and process integration,
optimization of huge problems including which has been developed by VR&D, is a tool
static, impact and NVH load cases. for defining, integrating, executing and auto-
Additionally free surface design is available mating design processes. The design modules
to redesign solid parts with the objective of included can be added to almost any analysis
a uniform stress distribution. program. They enable the user to represent
the workflow for connected components gra-
phically and to define each component appro-
Applications priately.

▪▪ Topology optimization
▪▪ Topometry optimization
Benefits

Optimization
▪▪ Free surface design
▪▪ Automation of design processes
▪▪ Reduces costs and design cycle time
▪▪ Improves product quality and efficiency

10 11
Envyo DIGIMAT
The Envyo multi-purpose mapping tool has DIGIMAT from MSC Software is a state-of-
been specially developed by DYNAmore for the-art, nonlinear multi-scale platform for
LS-DYNA. It allows simulation results to be modeling materials and structures, which Features
transferred and manipulated between diffe- helps engineers to design and optimize
▪▪ Mean-field homogenization for fast and
rently discretized meshes and from different composite materials fast and cost-effectively.
accurate prediction of nonlinear behavior
solvers to the LS-DYNA special input format. From small-scale nanocomposites and
▪▪ Finite element analysis of representative
honeycombed sandwich panels through to
volume elements (RVE)
Arbitrary point cloud data (e.g. results from fiber-reinforced plastics, rubber and hard
▪▪ Material exchange platform for DIGIMAT
experiments) provided in csv format or metals, DIGIMAT software covers a large
users and vendors of materials
through clustering methods, based on gray- variety of materials used in automotive,
▪▪ Coupling of FEA software to enable a
scale images may also be taken into account aerospace, consumer and industrial equip-
multi-scale analysis of composite mate-
in subsequent simulations. This is why Envyo ment industries.
rials and structures
provides an option for taking any type of previ-
▪▪ GUI-guided workflow tool for coupled
ous results into consideration in subsequent
analyses
numerical simulations and, consequently,
▪▪ Prediction of micromechanical behavior
cover the complete simulation process using
of composite sandwich panels
LS-DYNA.

Common
mapping methods
▪▪ Injection molding
▪▪ Sheet-metal forming
▪▪ Bake hardening
▪▪ Micro and mesoscopic models
▪▪ Axisymmetric simulation results

Process chain
Courtesy of
Deutsche Institute für Textil- und Faserforschung
12 13
ATD models and barriers THUMS Human model
To assess a vehicle, tests are carried out under The Total Human Model for Safety (THUMSTM)
comparable conditions. In order to describe is a computational model of the human body
the barriers and dummies accurately, they are and can be used to investigate the human
validated against defined test environments. body in various impact scenarios. It has
DYNAmore develops and distributes own finite been actively developed by Toyota Motor
element models and finite element models Corporation and Toyota Central R&D Labs
from Humanetics and LST LLC for various since around 2000. Model updates and new
applications . DYNAmore‘s package includes versions are thus provided regularly.
the following: The THUMS model is commercially distributed
by DYNAmore. Universities and research
▪▪ Side-impact ATD models
institutes may obtain a non-commercial
▪▪ Front impact ATD models
license, which is however strictly limited to
▪▪ Rear-impact ATD models
use in universities and research institutes.
▪▪ Child ATD models
The THUMS model is currently available in
▪▪ Pedestrian impact models
different versions, for example:
▪▪ Free-motion head form models
▪▪ Side and rear barrier models ▪▪ Female and male occupant model
▪▪ Front barrier models ▪▪ Female and male pedestrian model
▪▪ Moose model ▪▪ Child models
▪▪ Pendulum model

SUFEHM head model


The ʺStrasbourg University Finite Elemente
Head Model“ (SUFEHM) is a finite element
model of the human head. It can be used to
evaluate the risk of injury to the skull and the
brain under real head-impact conditions.

ATD and human models


THUMSTM, developed by
TOYOTA Motor Corporation
and Toyota Central R&D Labs

14 15
Development of
LS-DYNA and LS-OPT
DYNAmore provides comprehensive simu-
lation and software development services
when it comes to finite element technology.
These include simulation services on com-
mission, collaboration in research and
development projects, general consulting
and enhancements to the LS-DYNA, LS-OPT
and LS-PrePost software packages.

Method development
DYNAmore has been working in the field of Courtesy of Dr. Ing. h.c. F. Porsche AG
code development for LS-DYNA for many
years. DYNAmore had already implemented
material laws for composite materials in the
1990s. Today, a group at DYNAmore, actively
involved in Release Management for LST LLC,
is engaged in implementing new features and
methods in LS-DYNA. Our clients are located in
the USA, Europe and Asia. Our capabilities and
skills cover the entire range of finite element

FEMZIP LS-DYNA Tools


technology.

In the past, we have already been involved in The FEMZIP software tool has been specifically We have developed a number of useful tools
developed by Sidact to compress finite ele- for DYNAmore customers, making the every
▪▪ Development and implementation of ▪▪ Development of methods for realistic ment simulation results. The algorithms and day work with LS-DYNA simpler for our clients.
spot weld models simulation of airbag unfolding processes used focus on the particular charac- This includes tools for data compression, for
▪▪ Development and implementation of ▪▪ Modelling of human models for teristics of the LS-DYNA simulation results determining intrusions, for model quality
failure models pedestrian protection and therefore lead to exceptionally high rates check, and much more.
▪▪ Development of a material model to ▪▪ Complete development of GUIs for of compression.
describe the failure of laminated glass LS-OPT Costs for data management, storage and
▪▪ Development and implementation of ▪▪ Complete development of LS-RUN archiving can be significantly reduced by using
material models for composite fibers ▪▪ Managing development of the thermal the FEMZIP-L data compression tool. Simu-
▪▪ Development and implementation of solver in LS-DYNA lation data compressed with FEMZIP are up
material models for high-resilience and ▪▪ Managing development of the implicit to ten times smaller than LS-DYNA output files.

Services and Tools


rigid foam features in LS-DYNA The high compression factor obtained with
▪▪ Development of mapping algorithms to FEMZIP yields the following benefits:
enable seamless simulation of compo-
▪▪ Reduction in archive size
nent manufacturing
▪▪ Accelerated data exchange
▪▪ Fast access to data

16 17
Material Competence Center

Experiments
The mechanical properties of many materials
that are required for simulation are often
unknown. Defining these precisely is typically
very expensive and often involves a consider-

Research
able wait. In contrast, the experiments we
select in accordance with the specific require-
Deformation behavior
ments of the client provide a quick and reliable ▪▪ Viscoelastic and viscoplastic
basis for generating predictive material cards ▪▪ Isotropic or anisotropic
for polymers, metals and composite materials. ▪▪ Tensile and compressive-asymmetric In cooperation with its partners in industry
and academia, DYNAmore is involved in nume-
rous funded research projects in the automo-
Material models tive, aerospace and automation industries as
well as in the field of software development.
and calibration
The quality of the material parameters has a
Damage and
significant influence on predictability in nu-
failure modeling Research projects
merical calculations. In addition to advanced ▪▪ GISSMO (Generalized Incremental Stress
▪▪ AIAx: further development of the
testing processes, our customers benefit from State dependent damage Model)
machine learning process
our engineers’ many years of experience in ▪▪ DIEM (Damage Initiation and Evolution
▪▪ DigiBody: digital process chain for the
the area of numerical description of mechani- Model)
illustration and optimization of joining
cal material behavior. ▪▪ eGISSMO (Mat Add Generalized Damage)
technology in body-in-white
▪▪ Damage development under cyclic load
▪▪ 3DProCar: flexible process chains for
thermoplastic integrally manufactured
fibre-plastic composite components with
complex geometry
▪▪ EXTREME: dynamic loading - pushing
the boundaries of aerospace composite
material structures
▪▪ ARENA 2036: the first „research campus:
Our services Your benefits public-private cooperation for innova-
tion“
▪▪ Static, dynamic and cyclic testing ▪▪ Testing and parameter identification
▪▪ Swim-RTM: Development of algorithms
▪▪ Tensile, compression, puncture and from a single source
and software tools for process engi-
bending testing ▪▪ Minimizes time and costs
neering and design, applied to the RTM
▪▪ Component testing ▪▪ The LS-DYNA developer team is always
method
▪▪ Sample conditioning available
▪▪ T-Pult: Energy-efficient pultrusion pro-
▪▪ Sample processing and collection from
cess for the production of fiber com-
components, sheets and panels
posite components with thermoplastic
▪▪ Optical 3D strain measurement and
matrix in series production
detailed evaluation of local distortion
▪▪ TWIP4EU: Development of a simulation
framework to accurately model the
complex deformation and forming

Services
behaviour of TWIP steels

and many more

18 19
Events Seminars
In addition to regular conferences atten- DYNAmore offers more than 150 seminars,
ded by over 500 delegates, DYNAmore free information days and webinars on more
organizes free information days, work- than 65 topics. Training encompasses nume-
shops and webinars on different subjects rous courses in the fields of application for
on an ongoing basis in order to encourage LS-DYNA and LS-OPT, as well as the field of Courtesy of
knowledge sharing. pre- and postprocessor. All seminars can be Schwer Engineering
adapted to meet specific company needs and
held on-site in German or in English.

We offer courses in the following fields:

▪▪ Introductory courses
▪▪ Fundamentals/theoretical knowledge
▪▪ Crash
▪▪ Passive safety
▪▪ Forming/process simulation
▪▪ Material
▪▪ Implicit analysis
▪▪ Particle methods
Courtesy of
▪▪ Multiphysics/biomechanics Honda R&D Americas
▪▪ High-energy events
▪▪ Optimization
▪▪ Pre and post-processing
▪▪ CAE/IT

Continuing Education
Courtesy of Courtesy of Courtesy of Courtesy of
Hyundai Motor Company Volkswagen AG IMS Gear GmbH Knorr-Bremse Systeme für Schienenfahrzeuge

20 21
SCALE CASCATE
SCALE provides software solutions and IT CASCATE GmbH‘s main focus is on profes-
services for process and data management in sional consulting for all simulation solutions,
the automotive industry and other sectors. in particular complex tasks in the fields of
As an affiliated company of DYNAmore GmbH, fluid mechanics, structural mechanics and
SCALE has a strong background in CAE fluid-structure interaction. As an affiliated
applications and processes. Services offered company of DYNAmore GmbH, CASCATE
by SCALE include, in particular, development can draw on its extensive experience in the
of process and data management software, field of simulation. In founding CASCATE
development of the finite element method as GmbH, DYNAmore GmbH significantly
well as optimization for the functional design expanded and strengthened its CFD simu-
of vehicle components numerically. SCALE’s lation competence. In particular, an expert
portfolio encompasses CadMe, LoCo, CAViT team for STAR-CCM+® was set up that was
and Status.E for simulation data, process and dedicated to addressing customer require-
requirements management, as well as ments in this special area. This team also
IT services for bespoke software solutions conducts fluid-structure interactions and
upon request. flutter analyses.

www.scale.eu www.cascate.de

Affiliated companies
22 23
DYNAmore on the web www.dynamore.de www.dynasupport.com
/ All products / Support information for LS-DYNA
/ Current release notes / FAQs
/ Download area
/ FEM models
/ Registration for seminars
www.dynaexamples.com
/ More than 500 examples
/ Seminar materials
/ Download area

www.dynalook.com
/ More than 2,250 papers for download at no cost
/ Collection of all papers published at conferences
/ FEA newsletter archive

www.lsoptsupport.com
/ Download area
/ Examples
/ Papers
/ FAQs

www.ls-dynacloud.com
/ HPC cloud solution for LS-DYNA

www.dummymodels.com
/ Overview of all models

Online
24 25
DYNAmore worldwide Germany Sweden
Head Office DYNAmore Nordic AB
DYNAmore GmbH Head Office
Industriestr. 2 Brigadgatan 5
D-70565 Stuttgart-Vaihingen S-587 58 Linköping
Phone: +49 (0)711 - 45 96 00-0 Phone: +46 (0)13 - 23 66 80
Fax: +49 (0)711 - 45 96 00-29 Fax: +46 (0)13 - 21 41 04
E-Mail: info@dynamore.se
Northern Germany Branch Office www.dynamore.se
DYNAmore GmbH
DYNAmore Nordic AB
Im Balken 1
Branch office Gothenburg
D-29364 Langlingen
Bror Nilssons gata 16
Phone: +49 (0)50 82 - 9 14 00 - 50
S-417 55 Göteborg
Fax: +49 (0)50 82 - 9 14 00 - 49
Phone: +46 (0)31- 301 28 60

Berlin Branch Office


DYNAmore GmbH
Switzerland
Stralauer Platz 34 DYNAmore Swiss GmbH
D-10243 Berlin Technoparkstr. 1
Phone: +49 (0)30 - 20 68 79 10 CH-8005 Zürich
Fax: +49 (0)30 - 20 07 83 82 Phone: +41 (0)44 - 515 78 90
Fax: +41 (0)44 – 515 78 99
Ingolstadt Branch Office E-Mail: info@dynamore.ch
DYNAmore GmbH www.dynamore.ch
Friedrichshofenerstr. 20
D-85049 Ingolstadt Italy
Phone: +49 (0)841 - 1 29 43 24
DYNAmore Italia S.r.l.
Fax: +49 (0)841 - 12 60 48 - 38
Piazza Castello 139
I-10122 Turin
Sindelfingen Branch Office
Phone: +39 335 157 05 24
DYNAmore GmbH
E-Mail: info@dynamore.it
SSC-Lieferantenhaus, c/o DYNAmore
www.dynamore.it
Schwertstraße 58-60
D-71065 Sindelfingen
Phone: +49 (0)7031 - 49 00 95 90
France
DYNAmore France SAS
Dresden Branch Office 21 av. de Paris
DYNAmore GmbH F-78000 Versailles
Pohlandstr. 19 Phone: +33 (0)1 39 55 81 01
D-01309 Dresden E-Mail: info@dynamore.eu
Phone: +49 (0)351 - 31 20 02 - 0 www.dynamore.eu
Fax: +49 (0)351 - 31 20 02 - 29
USA
Wolfsburg Branch Office
DYNAmore Corporation
DYNAmore GmbH
565 Metro Place South, Suite 300
Willy-Brandt-Platz 3
43017 Dublin, OH, USA
D-38440 Wolfsburg
Phone: +1 (614) 696 3303

Locations
Phone: +49 (0)5361 - 6 55 56 24
E-Mail: info@dynamore.com
www.dynamore.com

26 27
www.dynamore.de

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