GeonX leaflet VIRFAC

WWW.GEONX.COM

GeonX develops robust and powerful software packages to support

manufacturing engineers in their daily design duties. From the design

offi ce to the factory, VIRFAC (VIRtual FACtory), provides an accurate,

powerful and industrial platform of virtual manufacturing. Making of vir-

tual manufacturing a reality is the mission of geonX.

After 10 years of development by engineers from the research center

Cenaero, specialized in advanced computational methods, geonX is inte-

grating this approach in today’s product development environment by

marketing its new generation manufacturing software VIRFAC, powered

by MORFEO (Manufacturing ORiented Finite Element tool). This innova-

tive software is the new reference in unifi ed simulation for applications

ranging from transformation and assembly processes to in-service struc-

tural response.

VIRFAC is built with the most modern object-oriented programming

technologies and has been particularly designed to handle large and

complex mechanical components for realistic industrial environments

geonX clients

XFEM

• FE C++ CORE

• LINEAR ELASTIC

• X-FEM BASED

ENGINE

• NON-LINEAR SOLVERS

• PARALLELIZED SOLVERS

• REMESHING

• CONTACT

• TRANSIENT ANALYSIS

PHYSICS

• THERMAL

• MECHANICAL

• FLUID FLOW

• METALLURGY

ADVANCED

• FRICTION POWER

• DEFORMATION POWER

• WELDING BCS

• MACHINING LEVELSETS

• MASSIVELY PARALLEL COMPUTATION

VIRFAC

• DISTORTIONS CONTROL

• RESIDUAL STRESSES

• MACHINING DISTORTIONS

• FSW FLOW OPTIMIZATION

• CRACKS CONTROL

Get in touchLinkedIn

http://www.linkedin.com/company/geonx

Twitter

https://twitter.com/geonx_

Youtube Channel

https://www.youtube.com/user/GeonXTechnologies

VIRTUALFACTORYVIRTUAL

FACTORY

virtual manufacturing made real

Driving Innovation in Manufacturing

Welding Distortions Control

Welding Sequence Optimization

Welding Residual Stresses Calculation

Welding Metallurgy Prediction

FSW Material Flow Simulation

Machining Distortions Control

Machining Sequence Optimization

Structural Integrity Analysis

From Process to Crack Propagation Simulation

Fatigue and Complex in-service Analysis

VIRFAC TARGETED APPLICATIONS

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GeonX • c/o SONACA

Route Nationale Cinq, 6041 Gosselies (Belgium)

Mail : [email protected] • Skype : geonx_

Tel : +32 71 257 890 • Fax : +32 71 257 894

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Staggered Thermo-Mechanical Coupling (Displacement)

Staggered Thermo-Fluid Coupling (Velocity/Pressure)

XFEM and Level-Set Technologies

Parallel Solver (Distributed and Shared Memory)

Eulerian, Lagrangian and Updated Lagrangian Formulations

Constant, Cyclic and Periodic Dirichlet Boundary Conditions

Specifi c Manufacturing Neumann-type Boundary Conditions

Remeshing Capabilities

Adaptive, Variable and Field Controlled Time Stepping

Mechanical and Thermal Contact Management

Graphical User Interface (Pre- and Post-)

VIRFAC FEATURES

VIRFAC/crack is the fi rst commercial software able to perform fully

automated industrial three-dimensional fatigue crack propagation

in complex assemblies with the eXtended Finite Element Method

(XFEM). Cracks are easily introduced in complex models via levelset

functions. Accurate stress intensity factors are readily computed and

used to assess the structural integrity of the par ts. Adequate level-set

update functions and propagation laws are then used to freely prop-

agate cracks in the mesh, with automatic handling of the topological

changes. Seldom manual interventions are needed with VIRFAC/crack,

thereby helping engineers make crucial decisions during design phases

or during investigation of critical in-service failures. The crack module

also plays a key role in the analysis of manufacturing defects.

An original algorithmic strategy makes VIRFAC/machining effi cient

for the simulation of multi-pass machining simulations. Relaxation of

stresses generated during upstream processes is often the most criti-

cal source of distortion during the machining process. In order to pre-

dict them accurately, it is crucial to take the whole sequence of passes

into account. Therefore, the level-set (signed distance) is used to rep-

resent each path so that the workpiece can be meshed separately to of

the different cutting surfaces. This offers a strong advantage over the

classical Finite Element approach which would require heavy remesh-

ing operations after each machining step. This method guarantees that

cutting paths are defi ned in an initial undeformed confi guration while a

deformed workpiece is considered for the next machining pass.

VIRFAC/FSW allows for the Friction Stir Welding (FSW) process to be

modelled at several scales. A local thermo-fl uid model and a com-

ponent scale thermo-mechanical model are coupled. The local scale

thermo-fl uid FE model is available to predict temperature cycles and

strain-rates around a FSW tool. Both, conventional and bobbin tools

can be modelled. Steady state and transient thermo-fl uid models are

available, thus allowing the fl ow and temperature fi elds around tools

with complex geometry to easily be modelled. The output data from the

thermo-fl uid model may be used as input data to metallurgy models to

predict for example the hardness distribution across a weld. The vis-

cous dissipation calculated in the thermo-fl uid calculation can be used

as a heat source in a global thermo-mechanical simulation to deter-

mine residual stresses in a FSW component.

VIRFAC/welding proposes a transient numerical model for a variety

of welding processes. The modeling of the thermomechanical problem

allows the user to accurately predict the level of residual stresses and

distortions at the end of the process. The use of VIRFAC/welding ena-

bles the optimization of the welding process by modifying the clamp-

ing system and/or the welding sequence in order to improve the design

without having to perform expensive experimental works. Accurate

results within a feasible time-frame can be obtained due to VIRFAC’s

parallel solver capabilities. Welding trajectories can be defi ned directly

from CAD geometry allowing easy defi nition of complex and multiple

welding paths. These welding features are effortlessly defi ned using

VIRFAC’s user-friendly graphical user interface.

INDUSTRIAL RESULTS

CRACK PROPAGATION SIMULATION

INDUSTRIAL RESULTS

MACHINING SIMULATION

INDUSTRIAL RESULTS

FRICTION WELDING SIMULATION

INDUSTRIAL RESULTS

FUSION WELDING SIMULATION

VIRTUALFACTORY

MAC

Crack propagationFusion Welding Friction Welding Machining