Airbus Group Innovations - Aerospace and defense
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Aerospace and defense
Airbus Group Innovations
Realizing technological excellence and breakthroughs in aircraft composite
design using Siemens PLM Software technology
Product
LMS
Business challenges
Reduce fuel consumption and
emissions
Increase structural efficiency
and reliability
Minimize aircraft weight
Keys to success
Utilize the full potential of
composites
Identify delamination and
damage in composite
structures
Image courtesy of Airbus.
Use nonlinear analysis to
determine adequate safety
margins Airbus Group Innovations structural components made of composites.
leverages the value of composites Compared to metals, composites exhibit
very specific failure modes. In order to pro-
with LMS Samtech Samcef vide safe designs that fully exploit the
Results
potential of these new materials, aircraft
Improved ability to design Maintaining a leadership position
stress engineers need to identify possible
composite parts right the first Today the main challenge for aircraft man- delamination as well as damages that may
time ufacturers is reducing fuel consumption appear inside the plies of the layered com-
Facilitated the engineering and emissions. The best way to accomplish posite structures.
and analysis of complex that is by increasing the structural effi-
composite structures ciency and reliability of aircraft and using Additionally, the nonlinear geometric
Used improved understanding new, lighter composite materials to mini- effects of thin-walled composite structures
of composites to increase lead mize weight. are complex to analyze and cannot be
over competitors ignored. Advanced expertise in nonlinear
Within this framework, engineers need to analysis is required to obtain accurate
Enhanced ability to perform
maintain control of the design by predict- results so that realistic safety margins can
composite damage analysis
ing all types of potential defects in the be determined.
www.siemens.com/plm/lms
Results of experimental testing.
Strain along blade axis
Increasing loading
Results of simulation with LMS Samtech Samcef.
Correlation between LMS Samtech Samcef and test results showing damage on a helicopter blade. Images
courtesy of Airbus Group Innovations.
Airbus Group Innovations (formerly EADS and Airbus Helicopters on its composite
Innovation Works) is the corporate analysis research, which requires an inno-
research and technology department of vative and advanced concept for design
Airbus Group. Its primary mission is to and deployment in new aircraft programs.
develop technological excellence and
breakthroughs to support industrial inno- Virtual testing is an essential tool to
vations within its divisions: Airbus, Airbus decrease the number of physical tests on
Defence and Space (formerly Cassidian composite components and to support air-
and Astrium) and Airbus Helicopters (for- craft certification, and Siemens PLM
merly Eurocopter). Software plays a vital role in this process
for Airbus Group Innovations by providing
Its secondary objective is to share compe- LMS Samtech Samcef™ software, a finite
tencies between these commercial entities element analysis (FEA) package dedicated
to help Airbus Group maintain its leader- to mechanical and structural virtual proto-
ship position in an increasingly competi- typing. LMS Samcef is used in numerous
tive global environment. Airbus Group industrial fields for everything from basic
Innovations primarily works with Airbus to advanced projects.
Indeed, during the past 20 years, the LMS simulation is used to incorporating engi- “The LMS Samtech develop-
Samtech software development team has neers from the French university Ecole ment team is the corner-
built a strong relationship with Airbus Normale Supérieure de Cachan (ENS stone of these partnerships,
Group Innovations, especially in the area Cachan), especially from its Laboratoire de contributing to the dissemi-
of composite technologies. Mécanique et Technologie (LMT Cachan),” nation of these new material
says Didier Guedra-Desgeorges, vice presi- laws thanks to the imple-
Providing a foundation dent and head of the Technical mentation of these
With more than 35 years of experience Capabilities Center Structure Engineering, advanced concepts into its
working with leaders in the aerospace Production & Aeromechanics at Airbus LMS Samcef solver.”
industry, Airbus Group Innovations experts Group Innovations. ”The very high level of
Didier Guedra-Desgeorges
perform research and assist aircraft origi- the research programs and the number of
Vice President and Head of the
nal equipment manufacturers (OEMs) with new composite material laws and models
Technical Capabilities Center
the implementation of dedicated structural for composite structure damage devel-
Structure Engineering,
analysis technology and optimization sce- oped by LMT Cachan explains the strong
Production & Aeromechanics
narios as well as solid predictive solutions relationship between us.”
Airbus Group Innovations
for composites. Airbus Group Innovations
improves its knowledge by enabling the Guedra-Desgeorges adds, “Laboratoire de
simulation of composite material damages Mécanique et d’Acoustique, Aix-Marseille
so it can analyze large composite thin- University (LMA Marseille), another French
walled structures. For full-fledged pro- university laboratory working in the same
grams, efficiency improvement projects field, is also a research partner of Airbus
include developing dedicated and Group Innovations. The LMS Samtech
improved models, which take into account development team is the cornerstone of
modeling possible failures in the compos- these partnerships, contributing to the dis-
ite structure. semination of these new material laws
thanks to the implementation of these
“The Airbus Group Innovations team dedi- advanced concepts into its LMS Samcef
cated to advanced composite analysis and solver.”
“The successful implementation
of these laws in the nonlinear
LMS Samcef finite element
solver was completed with the
support of the Siemens PLM
Software team.”
Serge Maison Le-Poec
Head of Structure Analysis
Airbus Group Innovations
Building block approach including the composite structure and virtual and experimental material testing.
“Thanks to the implementa- Gaining a deeper understanding element solver was completed with the
tion into LMS Samcef of Given the growing competitive pressure, it support of the Siemens PLM Software
advanced composite mate- is important that the Airbus Group reacts team,” says Serge Maison Le-Poec, head of
rial laws developed in collab- extremely quickly to the needs of the mar- Structure Analysis at Airbus Group
oration with LMT Cachan ket by designing products right the first Innovations. “Even if openness is available
and LMA Marseille, Airbus time and by using new methodologies for via material user routines, a native imple-
Group gained much deeper integrating advanced modeling of mentation in commercial software pro-
physical insights, thus composites. vides a more reliable solution.”
extending the gap with its
competitors by positioning “Thanks to the implementation into LMS He notes, “Advanced numerical regulariza-
itself as the first and leading Samcef of advanced composite material tion techniques have been set up in order
research department able to laws developed in collaboration with LMT to preserve good convergence properties
offer such advanced Cachan and LMA Marseille, Airbus Group of such highly nonlinear analyses, includ-
expertise.” gained much deeper physical insights, thus ing strong discontinuities. The fact that
extending the gap with its competitors by LMS Samcef software provides a robust,
Didier Guedra-Desgeorges
positioning itself as the first and leading state-of-the-art technology environment in
Vice President and Head of the
research department able to offer such an industrial context is strategic for us.”
Technical Capabilities Center
advanced expertise,” says
Structure Engineering,
Guedra-Desgeorges. This new functionality has been success-
Production & Aeromechanics
fully tested by Airbus Helicopters for the
Airbus Group Innovations
The formulation of the selected model has prediction of the nonlinear structural
been extensively validated against experi- behavior of a composite blade, including a
mental results. It allows for taking into transverse crack. The precise correlation
account the different kinds of failure between the simulation and the physical
modes and damages of composite materi- test results confirm that it is possible to
als, as well as the interdependencies of analyze complex scenarios on composite
these phenomena. structures. Thanks to the demonstration of
its methods and models reliability and the
“The successful implementation of these extension of the spectrum of analyses to
laws in the nonlinear LMS Samcef finite real-life complex behaviors on composite
Solutions/Services structures, Airbus Group Innovations has the deployment of massive parallel com-
LMS Samtech Samcef positioned itself as a leader when applying puting based on the LMS Samcef nonlinear
www.siemens.com/plm/lms- for existing and new industrial programs. solver in order to run large scale models
samtech for composite damage analysis.
Realizing clear benefits
The trend is to use simulation of composite “Further validations are running with
Customer’s primary business components in parallel or as a complement Airbus within the European MAAXIMUS
Airbus Group is a global leader to physical testing. Within the full aircraft project,” says Maison-Le-Poec. “Airbus
in aerospace, defense and re- design process, the use of simulation tools Group and LMS Samtech software experts
lated services. In 2013, the is now virtually essential in order to satisfy are also partners in several research and
Group – comprising Airbus, the requirements of the certification development (R&D) projects on composite
Airbus Defence and Space and authorities, while saving time and money. damage analysis.”
Airbus Helicopters – generat- The accurate analysis models for compos-
ed revenues of € 59.3 billion ites provide a better understanding of the “Airbus Group Innovations is clearly recogni-
and employed a workforce of physics of failure. With the knowledge of zed for having set a high standard for engin-
around 144,000 people. what the effects of a failure are on the eering service activities to provide tailor-
www.airbus-group.com composite structure, better designs can be made solutions,” says Guedra-Desgeorges.
proposed with more precise safety margins. “The fast adoption of its methods by the
aviation industry will improve the industrial
Customer location This provides significant benefits to aircraft design process. Since composite material
Suresnes OEMs. The definition of more accurate behavior and life duration are different
France safety margins by the stress department of from the traditional metallic material frac-
aircraft OEMs enables lighter weight com- ture mechanics phenomena, current air-
posite structures and a reduction in costs. worthiness methodologies are being
Together with the support and expertise of adapted to take into account virtual testing
the LMS Samtech development team, of specific failure effects on aircraft com-
Airbus Group Innovations is working on posite structures.”
“The fact that LMS Samcef
software provides a robust,
state-of-the-art technology
environment in an industrial
context is strategic for us.”
Serge Maison Le-Poec
Head of Structure Analysis
Airbus Group Innovations
Siemens PLM Software
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