ESI Releases SYSTUS 2017 Dedicated to the Energy Sector

Software for the Testing of Thermomechanical and Multi-physical
Behavior of Components

PARIS–(BUSINESS WIRE)–$ESI #ESI—ESI
Group (Paris:ESI), leading innovator in Virtual
Prototyping software and services for manufacturing
industries, announces the latest version of SYSTUS, proven software
solution for thermomechanical design and regulatory analyses in the
Nuclear sector. ESI
SYSTUS 2017 brings significant new capabilities to the
software, including an innovative Differential Method (RCCM-MD). The
version also brings enhancements to investigate fracture mechanics using
the innovative X-FEM method, and addresses topology optimization for
many applications, including in the automotive and aeronautic sectors.

SYSTUS
benefits from 40 years of R&D in Finite
Elements Analysis (FEA). The software was originally developed by
Framatome (now AREVA
NP) to support the design of their nuclear power plants and to
perform regulatory analyses — all virtually. Today, SYSTUS has become an
industry-proven solution for an extensive range of regulatory analyses
mandated by international standards for nuclear engineering. It
specifically addresses the requirements of the ASME code¹,
standard issued by the American
Society of Mechanical Engineers, and the French standard, published
by AFCEN
and known as RCC-M (Règles de Conception et de Construction des
Matériels Mécaniques des Ilots Nucléaires² REP³).

SYSTUS
2017 brings new enhancements for conducting regulatory analyses,
including new analytic options, and a better legibility of results. It
introduces a Differential Method (RCCM-MD) for second category analyses
that can help industrial manufacturers and their suppliers overcome
major issues related to load changes over time and variations in the
directions of principal stresses, as these interfere with the
computation of the amplitude of the equivalent stresses Sn and the usage
factor U.

In the field of fracture mechanics, SYSTUS allows industrial
manufacturers and their suppliers to perform brittle and ductile
fracture analysis. Working with AREVA for over 6 years, the ESI SYSTUS
team has developed an innovative eXtended Finite Elements method (X-FEM)
that enables the analysis of defects without the need to model the
cracks explicitly — hence reducing complexity and saving time. With
ESI’s X-FEM method, the representation of defects is carried out using
the Level-Set
Method and specific enrichment functions.

SYSTUS
2017 includes enhancements for fracture mechanics with the X-FEM
method, including new and simplified commands to improve software
ergonomics. The version delivers strong efficiency improvements and
offers results very close to those obtained with Finite Element Method
(FEM) analysis with meshed cracks. Furthermore, with SYSTUS 2017, the
X-FEM method now takes into account plasticity, includes meshing with
quadratic elements, and enables the computation of the Energy rate using
the Theta method.

Finally, SYSTUS
2017 addresses specific needs in the automotive and aeronautic
industries for the first time by offering shape optimization. Here,
SYSTUS provides mathematical solutions based on the level-set technology
and enables manufacturers to access precisely the optimal shape.

¹ ASME code : Section III, division 1, article NB 3200
²
RCC-M = Règles de Conception et de Construction des Matériels Mécaniques
des Ilots Nucléaires. In English: Design and construction rules for
mechanical components of PWR nuclear islands
³ REP =
Réacteur à Eau Pressurisée. In English: Pressurized Water Reactor. See
RCC-M : Paragraph B3200

For more information about ESI SYSTUS, please visit www.esi-group.com/systus

Join ESI’s customer portal myESI to get continuously updated product
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About ESI Group

ESI
Group is a leading innovator in Virtual
Prototyping software and services. Specialist in material physics, ESI
has developed a unique proficiency in helping industrial manufacturers
replace physical prototypes by virtual prototypes, allowing them to
virtually manufacture, assemble, test and pre-certify their future
products. Coupled with the latest technologies, Virtual Prototyping is
now anchored in the wider concept of the Product Performance
Lifecycle™, which addresses the operational performance of a product
during its entire lifecycle, from launch to disposal. The creation of a Hybrid
Twin™, leveraging simulation, physics and data analytics, enables
manufacturers to deliver smarter and connected products, to predict
product performance and to anticipate maintenance needs.

ESI is a French company listed in compartment B of NYSE Euronext Paris.
Present in more than 40 countries, and addressing every major industrial
sector, ESI
Group employs about 1200 high-level specialists around the world and
reported annual sales of €141 million in 2016. For more information,
please visit www.esi-group.com.

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