Femap 11.1 What's New

Unrestricted © Siemens AG 2013 All rights reserved. Smarter decisions, better products.

Femap 11.1 What’s New

November 2013

2013-11-02

Unrestricted © Siemens AG 2013 All rights reserved.

Siemens PLM Software

Femap Release Schedule

For several years, Femap has been on an approximately yearly release schedule

• v11.1 November 2013• v11: January 2013• v10.3.1: January 2012• v10.3: October 2011• v10.2: October 2010• v10.1.1: January 2010• v10.1: August 2009• V10: December 2008

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Femap 11.1Launch Plan

Femap version 11.1 • Announcement: November 2013• Release to manufacturing: early

November 2013• Available online on GTAC site

• Shipping to customers: mid November 2013

• Available in 32-bit and 64-bit versions

NX Nastran• NX Nastran 9 is included in

Femap with NX Nastran bundle• NX Nastran 9 is 64-bit only (NX Nastran 8.5 can be

bundled with Femap 11.1 if 32-bit versions are required)

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Femap Direction

Femap continues to provide:• A modeling environment that’s dedicated to FEA• The in-depth, detailed functionality required to accurately model real-world

parts and assemblies• Customer driven features and functionality

Courtesy of NST

Courtesy of Kotchergenko

Courtesy of NASA JPL

Courtesy of Icepronav

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Femap 11.1Primary Focus and Messages

Improved productivity through process improvement• Geometry modeling• Charting and free body enhancements• Intelligent model merging• Meshing and FE model management

Increased simulation scope through discipline extensions• NX Nastran integration enhancements• Design Optimization extensions

Faster preprocessing through performance improvements• Improved graphics architecture (OpenGL4.2)• XDB results attach

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Femap 11.1Overview

• Geometry modeling enhancements• FE modeling enhancements• Postprocessing enhancements• Performance improvements• NX Nastran integration• Customer driven enhancements

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Geometry ModelingNon-Manifold Add – Tolerance

Non-Manifold Boolean Add Tolerance

• Non-Manifold Add command brings vertices and surfaces together

• Geometry add operations now controlled by a distance tolerance

• Operates like the Parasolid Stitching or Sewing commands

• More tolerant joining of entities that are separated by:• Overlaps• Gaps• Offsets

• Facilitates model creation and manipulation

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Geometry ModelingNon-Manifold Add – Multiple Bodies

Adding multiple bodies• Algorithm starts with the first body, and adds the next closest body one at a

time• Produces a single solid• Tolerance control

• Similar to Stitch / Sew• Incremental Checking

• Checks resulting Parasolid body after each step – it it’s not OK, rolls back andskips that solid

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Ship model example• 1119 surfaces• Break selection into sections for

larger models• Free Edges are highlighted upon

completion to show what was connected

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• Removes geometric discontinuitiesensuring contiguous mesh creation

• Can use the Meshing Toolbox tofine tune the mesh

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Geometry ModelingSolid Sweep

Solid Sweep• Sweep surfaces along curves to create solids• Adds to the array of geometry creation tools

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Geometry ModelingSolid Sweep Between Surfaces

Solid Sweep Between Surfaces

• Sweeps between surfaces to create a solid• User selected surface anchor points control twist

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Blend Factor

• Controls the shape of the swept solid• Similar to the Blend Spline factor

0.5 1.0 1.5

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Geometry ModelingMid-Surface Extraction

New mid-surface extraction options• More robust face pairing commands able to extract mid-surfaces from a larger

array of problems• Takes advantage of recent developments in the Parasolid modeling kernel

• Automatically combine mid-surfaces

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Geometry ModelingSurface from Mesh

Surface from Mesh updated to include special case code for Ruled Surfaces• More robust

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Geometry ModelingIGES Export

IGES geometry export• Points and Curves can be

exported to IGES• Type 116: points• Type 100: circular arc• Type 110: line• Type 126: B-spline

116,0.01905003810008,0.23653797307595,0.00793751587503; 1255P 628308,0,7HDEFAULT,1,1255; 1257P 629408,1257,0.,0.,0.,1.; 1259P 630110,0.,0.23177546355093,0.00635001270003,0.,0.28257556515113, 1261P 6310.00635001270003; 1261P 632308,0,7HDEFAULT,1,1261; 1263P 633408,1263,0.,0.,0.,1.; 1265P 634110,-0.0254000508001,0.25717551435103,0.00635001270003, 1267P 6350.0254000508001,0.25717551435103,0.00635001270003; 1267P 636308,0,7HDEFAULT,1,1267; 1269P 637408,1269,0.,0.,0.,1.; 1271P 638124,-1.,-0.00000000000001,0.,-0.01746253492507,0.,0.,-1., 1273P 6390.27940055880112,0.00000000000001,-1.,0.,0.00793751587503; 1273P 640100,0.,0.,0.,0.00158750317501,0.,-0.,0.00158750317501; 1275P 641308,0,7HDEFAULT,1,1275; 1277P 642408,1277,0.,0.,0.,1.; 1279P 643126,13,3,0,0,1,0,0.,0.,0.,0.,0.125,0.125,0.25,0.25,0.375,0.375, 1281P 6440.5,0.5,0.75,0.75,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1., 1281P 6451.,1.,1.,-0.01746253492507,0.23495046990094,0.11271272542545, 1281P 646-0.01765373537375,0.23495046990094,0.11271272542545, 1281P 647-0.01783022130207,0.23498580466822,0.11263322219907, 1281P 648-0.01811825230885,0.23508395458128,0.11241238489468, 1281P 649-0.01823405440875,0.23514546677531,0.11227398245812, 1281P 650-0.01843168889108,0.23527537077965,0.11198169844834, 1281P 651-0.01851354274338,0.23534441689078,0.11182634469832, 1281P 652-0.01865513132483,0.23548587734675,0.11150805867237, 1281P 653-0.01871469598581,0.23555841976443,0.1113448382326, 1281P 654-0.01886827687589,0.23577881594684,0.11084894682217, 1281P 655-0.01893760203569,0.23592937735218,0.11051018366017, 1281P 656-0.01902870993318,0.23623253105108,0.10982808783763, 1281P 657-0.01905003810008,0.23638528750077,0.10948438582583, 1281P 658-0.01905003810008,0.23653797307595,0.10914084328169,0.,1.; 1281P 659308,0,7HDEFAULT,1,1281; 1283P 660408,1283,0.,0.,0.,1.; 1285P 661

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FE ModelingModel Merge

Model Merge• Rebuild legacy FE models• Reconstruct assemblies or reassemble components

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• When multiple models are open in Femap at the same time• Copy entities from one model to another with complete control over inclusion

and renumbering of:• FE Entity types• Boundary conditions• Materials• Properties• Groups• Layers• Analysis set

• Model orientation and transformation control• File, Merge can also be used to transfer frequently used Materials, Properties,

Layups etc. from existing models to new models

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Control Source and Target Model

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Preview of IDs currently in use in both Models

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Control which Entity Types get copied

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Control selection of Entity Types to renumber

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Control and Preview Renumbering

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Grouping and Transformations

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FE ModelingTetrahedral Meshing

Tetrahedral meshing• Multiple tetra elements through the thickness option• Based on initial surface mesh

Initial surface mesh

Final tetra mesh

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FE ModelingTetrahedral Meshing

Tetrahedral meshing• With the latest tetra-mesher most flat tetrahedra are eliminated

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FE ModelingMeshing Toolbox

Control Pad alignment in Meshing Toolbox• Default• Tangent• Along Vector• Includes Pad and Washer

combinations as well

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FE ModelingMesh Offset

Mesh Copy – Offset• Copy and offset elements along the element normals

• Option to include corner correction similar to that used in extruding shells to solids

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PostprocessingAttached Results Files

• Introduced in version 11.0 (OP2)• Expanded to include .XDB files

• NX and MSC Nastran XDB formats• Native Femap code• No external libraries required

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PostprocessingAttached Results – XDB Files

• MSC Nastran• Supports HK (original) and Binary Tree (from 2005) storage methods• Method selected via DBCFACT parameter on NASTRAN command (all three

options are supported)• 0 – no multi-key format (default): produces the original format XDB file used

by MSC and NX Nastran• 2 – auto-select multi-key method: data blocks possible in both formats• 4 – Multi-key format: data blocks are always written using the Binary Tree

method

• Limitations• Single Nastran database per XDB supported• Design optimization not yet supported

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PostprocessingAttached Results – CSV Files

Attach user created comma separated variable (CSV) files• Significantly more powerful than existing CSV file import• Output Set control – multiple in one file• Nodal scalar• Elemental scalar• Nodal vector• Nodal vector with rotations• Elemental data with corner• Elemental data with corner (not linearly combinable)• Elemental data beam/bar data• Elemental data beam/bar data (not linearly combinable)

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100 - Output Set 1000 (or Output Set ID)Set TitleSet Value-1NOTE: If this file is read into Femap, the Output Set ID is ignored – a new Output Set will be created for each Table 100 encountered. All other tables that come after this are added to that Output Set, until another Table 100 is found. All tables except this one can come in any order, or have as many occurrences as you need.

400 - Nodal Vector (Global Rectangular)

400Result Type (0 for Any)Total Vector ID, X Vector ID, Y Vector ID, Z VectorID (0 for Auto)Total Title, X Title, Y Title, Z TitleNode ID, X Value, Y Value, Z Value…Node ID, X Value, Y Value, Z Value-1NOTE: Although you specify a vector ID and title for the “total” values, you do not actually include those in the data. Femap will automatically compute the vector sum of the components and store that as the total.

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100 New Output Set0 Let Femap Assign the Output Set IDOutput Set for Attach Testing Title0.0 Output Set Value-1 Done with this Data400 Type 400 – Nodal Vector Data1 Data Type 1 - Displacements9000000,9000001,9000002,9000003 Vector IDs, including the Total Calculated by Femap, Titles on Next LineTotal Calculated Displacement,X Calculated Displacement,Y Calculated Displacement,Z Calculated Displacement 1,0,0,0 Node ID, Component Values2,-0.001666567,0.006526019,0.0002787663,-0.001184595,0.02125182,0.0005717274,0,0,05,0,0,06,0,0,07,0,0,08,0,0,09,-0.003282172,0.006492931,9.54E-0510,0,0,011,-0.001753719,0.02088428,0.00010224912,0,0,013,-0.002532253,0.00624941,0.00014073714,-0.000608656,0.02053312,0.00011521167,-0.001589356,0.1602065,-0.0190350872,7.13E-06,0.2087363,-0.0196183977,0.001350387,0.07328212,-0.0127429379,0.002388,0.0206234,-0.00667166685,-0.001828255,0.04186719,0.0131877588,0.001549801,0.02205666,0.009206097-1 Done

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PostprocessingExport FNO

• Export results data (internal or attached) to binary .FNO file via API• Smaller and faster• rc = App.feFileWriteFNO( 0, ouVecs.ID, feGroup.ID, fno_Name )

• Example model• 450,000 nodes and elements• 600 output sets• 160+ GB OP2 file

• FNO export• Export sub-model (area of interest)• ~1,000 nodes and elements• 2.6 MB model .NEU file• 10.8 MB .FNO results file

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PostprocessingAttached Results – Future Development

Format Status

.op2 – Nastran Completed v11.0

.fno – Femap & NEi Nastran Completed v11.0

.xdb – Nastran Completed v11.1

.csv – User Defined/Excel Completed v11.1

.rst & .rth – ANSYS Future

.odb – Simulia (ABAQUS) Future

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PostprocessingCharting

• Added new data series type• Value vs. Value• Allows for plotting of quantities such as

applied force vs. displacement at a specified location

• Reorganization of chart data series dialog to only show relevant items

• Improved rendering when copying charts to the clipboard at non-screen resolutions

• Increased user control over fonts, labels, colors for chart entities

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PostprocessingFreebody

• Added ability to force Freebody calculations to only consider applied, constraint and multipoint constraint forces from GPFORCE data block

• By default, Femap will use applied, spc and mpc forces from OLOAD, SPCFORCE and MPCFORCE requests if that data was not available in the GPFORCE block, however there were some cases where Nastran would not report the same number in both places (e.g. thermal applied loads across rigid bodies)

• New validation tool to check if all requested values exist in the result set

• Freebody listing tools updated to provide more relevant output

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Performance ImprovementsGraphics Architecture

• Single copy of graphics entity data within a model• Previously kept a copy per view of model

• Significant <Ctrl-G> improvement as raw data already in memory

• Phased introduction• First release accelerates solids and plates

• Deformation, Animation• Contour, Criteria

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• Uses Geometry Shader functionality that requires OpenGL 4.2• Moves workload from CPU to GPU

• Dramatic reduction in volume of data required• Shader uses same data for filled faces or edges• State changes done in GPU on the fly

• Such as shrink, plate thickness• Deformation – faster animation generation

• Contour only faces with results – good for contact

• Contouring done in fragment shader• Better quality near min and max contour values• Better quality interior interpolation

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V11.1 – OpenGL 4.2+ graphics• Faster graphics• Significantly reduced memory usage

Takes advantage of Parallel GPU Processors, some graphics cards now have 448 processors, in Femap v10.1/11.0, Femap controlled processor utilization, now the graphics driver optimizes parallel processor usage.

Example model meshed with 34584 elements and 50975 nodes.Data requirementOpenGL 1.1: 46x34584 = 1,590,864 floatsOpenGL 2.1: 292x34584 = 10,098,528 floatsOpenGL 4.1: (3x50975)+(10x34584) = 498,765 floats

10.3 11.0 VBO 11.1

Graphics Memory

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Test of normal Femap Modeling Operations –• Display Full Model from Group –• Autoscale

1.1 M 2.3 M 3.4 M 4.5 M 5.7 M 6.8 M 7.9 M

v10.3.1

v11.0.1

v11.1.0

Model Size

Grp

hic

s P

roce

ssin

g T

ime

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Performance graphics vs. regular graphics comparison• Model: 6 million nodes / elements• Action: full model display / group / full model display

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“ATA uses Femap with very large finite element models. The 11.1 release significantly improves performance across the board with some tests revealing a 5x graphics performance improvement, making Femap an even more powerful tool for analysis.”Paul Blelloch, Director, Aerospace Analysis, ATA Engineering, Inc.

Images courtesy of ATA Engineering Inc.

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Performance ImprovementsVisibility & Load Expansion

• Visibility Dialog Box – underlying code was rewritten to more quickly populate the Property, Material, Group selection boxes

• Load expansion from geometry to a mesh enhanced for elemental face-based loads on surfaces (pressure, heat flux, convection and radiation)• For large models with many loaded

surfaces, load expansion times reduce from minutes to seconds

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NX NastranPyramid Element

• Nastran Read/Write Support

• Manual Creation

• API Access

• Potential future integrating into Femap’s Solid Meshing Routines

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NX NastranExecutive and Solution Options

• Base filename definition

• Enter the base filename to beused to name analysis files (-000 appended)

• Can individually name analysissets

• Aids workflow

• Enhanced restart support

• Opt for Read Only restarts

• Specify model version and subcase ID

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NX NastranDesign Optimization

• Design optimization normal modes support

• Specify a mode eigenvalue or frequency as a design constraint

• Option for mode tracking through cross-orthogonality checking

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NX NastranDynamic Response Output

• RMS Von Mises stress output for random analysis• Calculated using the Sandia Labs method (report: SAND98-0260)

• Transient response composite ply results• Stress / strain output for individual laminae defined on PCOMP or PCOMPG• PARAM,NOCOMPS controls laminate vs. smeared output

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NX NastranLoad and Constraint Set Combination Display

• Nastran LOAD Combination load sets display• Nastran SPCADD / MPCADD Combination constraint sets display

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Customer Driven EnhancementsGrouping

Group / Operations / Generate• Non-Manifold Edges will force breaks at T-junctions

Example: 105 groups are automatically created representing each interior panel and rib

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Customer Driven EnhancementsModify / Project

• Added new commands• Modify / Project / Points • Modify / Project / Nodes

• Removed old commands on the Modify / Project menu that previously projected points and nodes to specific entity types

• Improved the projection algorithms • Accept multiple curves/surfaces to project onto• Allow projection along a vector in addition to "closest" for all types.

• Added the feProjectOnto() API method to access the new capability and converted old API "project" calls to use the new internal functions

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Customer Driven EnhancementsUser Interface

Tooltip display

• Optionally display group and layer information when using Tooltips• Appears both in the Tooltip and Entity Info pane

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Customer Driven EnhancementsCreate Line or Measure Between Geometry

Measure distance between geometry tool• Measure minimum, maximum or both between multiple selected geometry

entities

Create Line between geometry• Multiple Lines and maximum,

minimum or both between multiple selected geometry entities

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Customer Driven EnhancementsEdge to Edge – Split at Closest Point

Edge to edge split surface• Split at closest position between curves

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Customer Driven EnhancementsLoad Set Combination Data Surface

• Spreadsheet style definition of combination load sets• Create definitions in Femap Data Surface or import from Excel• Sum loads of constituent sets on-the-fly• Create new combination load cases in Femap

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Customer Driven EnhancementsTools Check Extensions

Tools Check extensions• Coincident Nodes: merge across output coordinate

systems• Sum Forces:

• Loads on selected nodes and elements• Selected load definitions• Optionally include Body Loads

• Element Quality• All On/Off buttons to aid criteria selection• Show button highlights elements that violate any

selected quality thresholds• List Quality Summary • List Quality Details with optional list to Data Table

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Customer Driven EnhancementsEntity Renumber by Coordinate Direction

Modify Renumber• Renumber entities according to

selected coordinate system direction • Specify positive or negative for

each direction independently

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Customer Driven EnhancementsModel Info Tree Entity Count

Model Info Tree• Show model entity count button• Toggle entity count for each section on / off

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Q and A

Femap 11.1 What's New

Technology

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