Functionality:

• Importof.dat,.fxdand.nasfiles

• Viewingofmesh

• InteractivecreationofGROUPS

• Editingmaterials,geometriesanddata

• Editingsupportsandnodalloads

• Materialclasses

• Viewingofotherloads

• Analysiscontrolsettings

• Graphicalreviewofphasedanalysiscontrol

• Runninganalysis

• Contour plots of results, deformedmeshes

andvectorplots

• Scripting-loggingandreplay(Python)

Withlotsofnewfeatures,weareproudtopresentDIANA

9.5tobothournewusersandexistingcustomers.At

thetopofourlistofenhancementsisournewanduser

friendlyMeshEdit.

Designedin-housewithdirectinputfromtheDIANAde-

velopers,andbasedupontherequirementsofDIANA

users,thisinitialversionofthesoftwareispackedwith

functionality.Infutureversionswewillbeintroducing

morefeaturesthanwillallowDIANAuserstostream-

linetheiranalysesevenmoretoolsattheirfingertips.

New in DIANA v9.5a t a g l ance . . .

New MeshEditor

New...

• MeshEdit

• MaterialModels

• ElementTypes

• AnalysisProcedures

• DesignFunctions

• GeotechnicalAnalysis

• Licensing

For a demonstration of the new DIANA MeshEdit see our YouTube site.

The New DIANA MeshEditor

History

TheoriginalDIANAuserinterfacewasiDIANA.

Utilising this product, the user was able to

accessallofthefunctionalityofDIANA-while

in the process of being replaced by the new

MeshEdit,iDIANAisstillavailable.

Sevenyearsagowesought tobringouruser

interfaceuptodatewiththeintroductionofthe

MIDAS FX+ for DIANA pre-/post-processor.

Thisgaveourusersamodern,windowsbased,

environmentwithinwhichtheycouldinputtheir

modelandprocessthemodelresults.However,

usersstillneededtousethe in-builtMeshEdit

tosetupandruntheanalysis.

Forsometime,wehavefelttheneedtoimprove

upon this toprovideouruserswitha stream-

linedprocess from thesettingupofgeometry

toprocessingofresults.

Where we are now

In order to accomplish our goal TNO DIANA

BV tookonanexperienced teamofgraphical

user interface developers who have worked

alongside the DIANA developers to create

thenewMeshEdit.TheMeshEdit is still in its

infancy,butalreadywefeelit’sworthdistribut-

ingtobothourexistingandnewcustomers.

As mentioned above, the “all new” MeshEdit

hasbeendesignedwithinputfromtheDIANA

developer team,butnotonly them -wehave

listenedtoourusersandimplementedmanyof

therequestedfeatureshighlightedbythem.

WiththereleaseofDIANA9.5,theoldMeshEdit

isreplacedbythisnewwindowsbasedsystem.

2

FX for DIANAformodellinggeometryandmeshsets

MeshEditforsettingupofthemodel,analysissetupandpost-processing

FX for DIANAforadvancedpost-processing

Users can automatically import their model

fromFX+ forDIANA (or from iDIANA). Once

imported,thenewinterfacecanbeusedtoset

up:

• Meshgroupdefinition

• Supportandloadingdefinition

• Materialsdefinition

• Analysiscontroldefinition

• Runninganalysis

• Postprocessing

The Future

Whilst our users are getting used to the look

andfeelofthenewMeshEdit,wewillcontinue

implementing new features for each new

version. Ultimately, userswill beable to set

uptheirGeometry,carryoutcomplexmeshing,

addmaterials,boundaryconditionsandloads,

carry out sophisticated analyses and view/

analyseresultswithavarietyofoutputoptions.

3

Material Models

Element Types

• NEWMaterialinputfunctionality(inthenew

MeshEditGUI)withreferencetointernational

designcodesforconcreteandsteel

• NEWTresca andVonMises plasticity, total

strain-stiffnessdiagrams

• EXTENDED Kinematic hardening for Von

MisesandDrucker-Pragerplasticity

• NEW Bond slip relation as proposed by

Shimaetal.

• EXTENDED Orthotropic linear stiffness and

nonlinearelasticdiagramsforplaneinterface

elements

• NEW Dodd-Restrepo Plasticity - for cyclic

behaviourofsteelreinforcements

• NEWUsersuppliedsubroutines foruniaxial

springs

• EXTENDEDJSCEtensionsofteningandstiff-

ening

• NEWTotalStrainCrackmodels:

- shear-retentionmodels

- damagebasedshearretention

- aggregatesizebasedshearretention

• NEW Total Strain Crack model - Maekawa

compressioncurve

• NEWModifiedTakedamodelforuseincom-

binationwithbeamelements

• NEW Eurocode fire load curves as set out

by Eurocodes 2 and 4 for compression in

concreteandforsteelreinforcements

• NEWModified two surfacemodel - a plas-

ticitymodelwithtwoyieldsurfacesinwhich

thehardeningof theconcrete isdependant

• NEWT18FSH-3-nodeanalyticalintegrated

flatshellelement

TheT18FSHelementisathree-nodetriangular

analytically integrated flat shell element. The

plate bending is based on Kirchhoff theory

andbasedontheformulationbyAllman.The

membranebehaviourisalsobasedonAllman’s

formulation.Theelementisparticularsuitable

for post-buckling and nonlinear vibration

analysis based on perturbation theory. This

enhancement is based onTiso’swork. Addi-

tionally, the element can consider geometric

nonlinearbehaviour.

onthedistanceofthestresspointfromboth

yieldsurfaces

• NEW Modified UBC sand model - a new

liquefaction model developed by the Uni-

versity ofBritishColumbiawhichhasbeen

furtherdevelopedbyTNODIANAsothatitis

suitableforimplicitintegrationschemesand

isnowsuitablefor3Dimplementation

• UPDATED modified MMC model with engi-

neeringinput,whichhasbeenextendedwith

atensioncut-offanddilatancycut-off

• UPDATED validation of COMBIF model for

masonry, this combines the characteristics

ofcracking,shearingandcrushing

• UPDATEDRankineHillorthotropicplasticity,

nowalsoavailableforcurvedshellelements

sothatitcannowbeusedin3Dmodels

4

Analysis Procedures New Liquefaction model in DIANA can

be used for both 2D and 3D models

covering static and transient analyses.

Development of pore-pressure in

conjunction with plastic strain enables

to simulate lateral spreading effect

on the underground and embedded

structures.

• UPDATED Strength reduction analysis

module“REDUCT”.

• UPDATED Phased analysis. Support sets/

tyingsetscannowbeactivatedaspartofthe

phasedanalysis;andmaterialpropertiescan

beredefinedforselectedelementsthrough-

out thephasedanalysis;and inexcavation

analyses,theinternalforcesoftheremoved

elementscanberetainedinfollowingphases

• NEWModalpushoveranalysis

• NEWReducedordernonlinearfreevibration

analysis *VIBRAT, allows eigenvalue

analysis considering geometrical nonlinear

aspects

• UPDATED Automatic determination of

Rayleighdampingparameters inanEigen-

valueanalysis

• NEWMultiplecalculationofRayleighparam-

eters

• NEW Output results for Janssen material

model(tunnellining,concretefaceinCFRD

damsandetc)

• NEWOutputofdynamicpressuresinHFTD

• EXTENDEDNodalresultbasedstopcriteria

• NEW Output of shear capacity and hydro-

staticpressurecapacity

• NEWDefinitionofcomplexloads

• NEWShear stress in reinforcementmotherelementconnection

• UPDATED Minimum and maximum resultsvaluesforsteady-stateheatflowandground-waterflowanalyses

• UPDATED USS definition and dynamicallylinkedtolibraries

• NEWAutomatictying

• UPDATEDEulerstabilityanalysis

5

Design Functions

Geotechnical Analysis

Licensing

• NEW Composed surfaces for unstructured

mesh

• EXTENDED Predefined material models

in combination with stiffness adaptation

analysis

• UPDATEDOutput toUCCOV andUSCHR for

*DESIGN

• EXTENDEDWeightandequivalentaccelera-

tionloaddefinedatmodellevel

• EXTENDED Boundary constraints can be

defined as pore-pressure or total head in

ground-waterflowormixtureanalyses

• NEWOutputofeffectiveandtotalstressesin

nonlinearanalyses

• EXTENDED Restructure of mixture/consoli-

dationanalysissuchthatporepressurehas

thesamemeaningasinnon-mixtureanalysis

• NEWUnsaturatedgroundwaterflowanalysis

• EXTENDEDFoundationpilescanbemodelled

asbond-slipreinforcements

• NEWAutomaticdeterminationofpileproper-

ties basedondeveloped confined stresses

insoillayers

WiththereleaseofDIANA9.5weareintroduc-

inganewelectroniclicensingsystemwhere,for

someclients,theuseofahardwarekeywillno

longerbenecessary.

Support & training

Successful finite element modelling requires

sound understanding of the background

theory with good engineering judgment. We

at TNO DIANA, together with our partners,

arededicatedtoprovidingthehighest levelof

serviceforDIANA:

• Personalised hotline and email support by

highlyqualifiedstaff

• Customisedtrainingsolutions

• Regulartrainingcourses

• Extensivetechnicalandtheoreticalmanuals

• Onlinetrainingsessions

Analysis consultancy

TNODIANAcancarryoutanalysisconsultancy

projectsonbehalfoftheirclients.Thisservice

includesanalysiswithDIANAandtheinterpre-

tationofresults

Software services

TNODIANAConsultants and software devel-

opmentteamcanprovidecustomisedsolutions

foryourengineeringproblems:

• SpecialisedsoftwarewithdedicatedGUI

• Newmodellingcapabilitiesdevelopmentand

implementation

• Integrationwithcustomersoftware

Services

TNO DIANA BVDelftechpark19a2628XJDelftTheNetherlands+31(0)883426200(T)+31(0)883426299(F)(Headquarters)

www.tnodiana.com

©TNODIANABV

,2014-9.5