DataPower Server is a stand- alone program sending synchronised viscoelastic data to any client program in same or remote PCs by TCP/IP protocol. DataPower Server is based on the RheoPower principle. Computer Aided Engineering ( RheoFlow CAE Client program is developed for calibration and simulation. by DataPower Server data. AE/CAD/CFD C RheoFlow can simulate basic flow channels DataPower Server can make very fast data feeds according to data requests for any lient. C ! ! CAE) Client programs are not platform depended. ! ! ! DataPower outputs can be used for: Simulation of injection moulding and extrusion processes. Orientation effects: shrinkage and warppage. Deeper understanding of capillary measurements. ! ! ! DataPower Server gives Data: At different temperatures, pressures and with known shear history. ! ! ! DataPower Server for CAE programs ! DataPower Server ! RheoFlow Client 8 Mw 0 MWD Usable results of exact relation between MWD and rheological properties. DataPower DataPower Server program sends viscoelastic synchronised data computed from a polymer material datafile. The use of Server is very simple. Figure shows viscosity curves of a material data file. RheoFlow Client program simulates flow in the L/D=20 capillary as a function of x-coordinate. The red line is log transition viscosity, blue is log shear rate, green is pressure and black is the orientation level P%. On the back left is DLL connector for TCP/IP.
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DataPower Server is a stand-a l o n e p r o g r a m s e n d i n gsynchronised viscoelastic datato any client program in same orremote PCs by TCP/IP protocol.
DataPower Server is basedon the RheoPower principle.
Computer Aided Engineering(
RheoFlow CAE Cl ientprogram is developed forcalibration and simulation.
byDataPower Server data.
AE/CAD/CFDC
RheoFlow can simulatebasic flow channels
DataPower Server can makev e r y f a s t d a ta f e e d saccording to data requestsfor any
lient.C
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CAE) Client programs arenot platform depended.��
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DataPower outputs can beused for:
Simulation of injectionmoulding and extrusionprocesses.
O r i e n ta t i o n e f f e c t s :shrinkage and warppage.
Usable results of exactrelation between MWD andrheological properties.
DataPower
DataPower Server program sends viscoelastic synchronised datacomputed from a polymer material datafile. The use of Server isvery simple. Figure shows viscosity curves of a material data file.
RheoFlow Client program simulates flow in the L/D=20 capillaryas a function of x-coordinate. The red line is log transitionviscosity, blue is log shear rate, green is pressure and black is theorientation level P%. On the back left is DLL connector for TCP/IP.
The Software Family
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The DataPower Serverand modern TCP/IPprotocol presents thebackbone.
Modern flexible codingtechnique offers rapidscalability for specialapplications.
RheoFlow is CAE Clientfor flow simulations ofbasic channel shapes.
RheoTester Client and aDLL program with opensource code givescoding instructions formaking Client TCP/IPinterface.
Material and processdata files are included.
or makingmaterial data
Data Functions in theFast Synchronised Mode
A CAE client programmakes a data request forviscoelastic functions at atemperature and pressurew i t h s h e a r h i s t o r yinformation.
DataPower Server givesrequested data back in fewmilliseconds.
Client/Server describes therelationship between twocomputer programs in whichone program, the client,makes a service requestfrom another program, theserver, which fulfills therequest. The Client/Serveridea can be used byprograms within a singlecomputer or in a network.
New polymer is measuredby oscillating and capillaryrheometer f
. Results arecomposed to a datafile inRheoAnalyzer program, amember of RheoPowersoftware family.
This datafile is imported tothe DataPower Server,which is now ready to give toany CAE Clients differenttype viscoelastic data atd i f f e ren t t ime s teps ,temperatures, pressure andshear history.
R h e o P o w e r i s acomprehensive softwarefami ly fo r po lymerstructure analyses and asource for DataPowersoftware family.
Client/Server Principle
Procedure Description
T h e S e r v e r - C l i e n tarchitecture offers readytools for high-performanceparallel and distributedcomputing saving systemresources and speeding upcomputation time.
RheoPower software family delivers material data files for separate DataPower Server. This can be located in samecomputer with CAE/CAD/CFD Client software or remote mode is saving computation resources. Client program gets flow andrate synchronized viscoelastic data by TCP/IP protocol in the ready use mode. DataPower can serve also CAE/CAD/CDF programson Linux/Unix platforms.
RheoPower
DataPower
MWD(Mf, Hf)RheoAnalyzer
Material.txt
RheoDeveloper
(t,P,T,
,P%
)
(,P
%)
( ,P%)
( , , t )T*
Material data file
RheoFlow, Testers
TCP/IP
Server
Client
CAE/CAD/CFD
( ,P,t ,P%)
DataPower Serverdelivers Viscoelastic Data
DataPower is stand-aloneserver program by TCP/IPconnection made by anyCAE, Computational FluidDynamics (CFD) andComputer Aid Design (CAD)client programs.
DataPower generates in fewmil l iseconds the dataresponse. On IP/TCPnetwork connection modeDataPower can serve manycl ients simultaneouslylocated on separate PCs upto supercomputers.
Performance
Transient Shear Flow andViscosity
Viscosity of two variablesPolymer has a wide range ofsudden shear rate changesdur ing ex t rus ion andi n j e c t i o n m o u l d i n gprocesses.
Viscosity varies stronglyduring deformations notonly as function of shearrate but also time or .
These step strains arestudied mainly with simple
principal cases in rheologyand not much for practicalpurposes.
Many software, models andmeshing methods areavai lable in the CAEprograms, but there is ag r e a t l a c k o f t i m e -d e p e n d e n t a n ds y n c h r o n i s e d t r u eviscoelastic data of polymermelts.
Transition Viscosity istrue effective viscosityincluded with shear history
and value of it approachessteady state viscosity duringtime.
Summarized
Polymer melt flows atdifferent states can beruled by three constants,namely temperatures bypressures by andviscosity transitions duringpressure by values.
The nature, structure andfunction of DataPowerServer differs a lot fromCAE software. ThusTCP/IP connection is anovel solution to join thesed i f f e r e n t w o r l d s .
( ,t)
RheoFlow Client program simulates pressure differences at different cavitypressures. The blue with 0bar curve shows pressure lossbetween barrel and gate compared 300bar for full filled 1000bar at cavitystart. At higher cavity pressures as 1500bar pressure difference starts to rise.
higher 445bar
Filling phase of cellular phone cover with LDPEH1840 by BASF only for testingpurposes. Similar way simulation forecasts right end pressures with truecompounds. Pressure drop Sprue is abt. 150bar.�P between Inj. Measured and
Copyright 2004 TomCoat Oy. All rights reserved.Windows is trademark of Microsoft. Corporation.Other brand and product names are trademarks orregistered trademarks of their respective holders.
Version 1.1e
System Requirements forDataPower Server:
Intel Pentium or faster.
Windows 95/98, NT 4.0,2000, Millenium or XP.
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System Requirements forCAE Client:
Can use TCP/IP protocol:Client: (t, P, T, ,P%)=>Server: (P%, ).
The function calls for DLLis added.
For multi elements modeis needed DataPowerPremium license.
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Performance ofDataPower Server
In the same computer 420data services in a secondmeans average responsetime of 2.4ms.
In the Intranet connection100 data services in asecond means averageresponse time of 10ms.
In the Internet connection10 data services in asecond means averageresponse time of 100 ms.
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Orientation degree P% at some points of cavity during filling phase. Figure shows that high orientationdegree still remains before packing phase. Results can be colleted to similar type 3D chart as pressureis presented.
RheoPower and DataPowerSoftware packages forPolymerization, Extrusionand Injection Moulding business.
