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© Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Whats New.

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1 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Whats New

2 Page 2 © 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: 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 Courtesy of Predictive Engineering

3 Page 3 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Launch Plan Femap version 11 Announcement: 9 th January 2013 Available online on GTAC site Release to manufacturing: early January 2013 Shipping to customers: late January 2013 NX Nastran NX Nastran 8.5 is included in Femap with NX Nastran bundle

4 Page 4 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap Direction Femap continues to provide: A modeling environment thats dedicated to FEA The in-depth, detailed functionality required to accurately model real- world parts and assemblies Customer driven features and functionality Courtesy of IHC Handling Systems Courtesy of Duraldur Courtesy of Femtec Courtesy of GleisFrei

5 Page 5 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Primary Focus and Messages Improved productivity through process improvement Improved results data processing Streamlined XY plotting capability Increased simulation scope through discipline extensions External superelement support NX Nastran integration enhancements Faster preprocessing through performance improvements Improved graphics architecture

6 Page 6 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Key Development Items External results files Graphics performance improvements Create geometry from mesh External superelement support Streamlined XY plotting NX Nastran integration Customer driven enhancements

7 Page 7 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Results Data Considerations Quantity of results data generated continues to increase Model sizes continue to increase Advanced analyses with incremental solutions can create huge amounts of data Dynamic response time or frequency steps Nonlinear load or time steps Time to access data increases Database sizes can become very large and unwieldy to manage The solution: Option for external results files that can attach to the Femap modfem database file

8 Page 8 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap v10.3 and Prior Versions External Results Files Imported results data (10.3 and prior versions) Model Information, Nodes, Elements, Materials, Properties, Loads, etc. NX Nastran Results File File / Import / Analysis Results….modfem.op2

9 Page 9 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Results Files Attached results data Model Information, Nodes, Elements, Materials, Properties, Loads, etc. NX Nastran Results File (.op2) File / Attach to Results….modfem.op2

10 Page 10 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Results Files Attach multiple databases File / Attach to Results….modfem.op2

11 Page 11 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Results Files Attach to external results files Femap modfem database size minimized Results data import no longer required Postprocessing functionality does not change External and internal results can coexist Solver support rollout plan: Nastran.op2 and FNO addressed initially ABAQUS.odb, Nastran.xdb, ANSYS.rst to follow Significantly increased efficiency for accessing transient results with attached results files vs. modfem imported results

12 Page 12 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Results Files International Space Station Laboratory Module 188,935 Nodes 184,592 Elements Output File: NX Nastran op2 26 Static Results Sets: 2.9GB Results Mode Model Size MemoryImport/Attach Time Envelope Time No results68.8 MB303 MB-- Internal3.3 GB3.64 GB103 s200 s Attached70.7 MB632 MB17 s164 s >6x faster>20% faster

13 Page 13 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Results Files Benefits Greater efficiency with faster data access Attach time >6x faster than import time Greater efficiency with reduced memory usage Smaller Femap modfem database size More manageable data handling and storage

14 Page 14 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NST External Results Example Railway vehicle extrusion panel Advanced Nonlinear (SOL 601) 13,822 nodes 13,951 elements Model size without output: 6.968 MB NX Nastran op2 file: 5.85GB 2,556 nonlinear static results steps Results ModeModel SizePC Memory*Import/Attach TimeReopen Time Internal12.05 GB7.75 GB25min220 s Attach8.692 MB1.7GB1min1 s Attach / Internal0.486 **0.21925x faster220x faster * Include other windows applications, ** Including op2 file

15 Page 15 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NST External Results Example I was very impressed with the performance of the external results capability in Femap v11. Using this new feature, we were able to significantly reduce processing time while keeping the computer resource usage low. Reopening a large analysis result file was over 200 times faster. This is great news for CAE users who are concerned about the trend of increasing analysis model sizes. Cong Yuan, Engineering Department, NST

16 Page 16 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Graphics Performance Considerations Quantity of model data displayed continues to increase Model size trend still increasing Graphics performance improvement is a continuous process in Femap Previous transition from Windows GDI to OpenGL Femaps use of OpenGL continues to expand

17 Page 17 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Graphics Performance Improvements Vertex Buffer Object (VBO) An OpenGL feature that allows data to be uploaded to the graphics card Offer substantial performance gains Vertex data resides in graphics card memory rather than system memory Vertex data can be rendered directly by graphics card Vertex Buffer Objects (VBOs) are Buffer Objects that are used for vertex data. Since the storage for buffer objects is allocated by OpenGL, vertex buffer objects are a mechanism for storing vertex data in "fast" memory (i.e. video RAM or AGP RAM, and in the case of PCI Express, video RAM or RAM), thereby allowing for significant increases in vertex throughput between the application and the GPU.

18 Page 18 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Graphics Performance Improvements Femap 11 includes support for VBOs Up to an order of magnitude performance improvement in the dynamic rotation of large models Depends on graphics card, graphics memory, and the model – can use large amounts of graphics memory

19 Page 19 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Graphics Performance Improvements Model DescriptionPerformance Improvement 1600 solids – each solid is a 100x1x1 brick with the four long edges filleted to.1 radius Model 1 in 10.3.1/64 with no vertex arrays 440ms, in dev 64 release 50ms (8.8 times faster) 1600 solids – each solid is a sphere of radius 1 Model 2 in 10.3.1/64 with no vertex arrays 1213ms, in dev 64 release 270ms (4.5 times faster) 640,000 quad4 elementsModel 3 in 10.3.1/64 with no vertex arrays 427ms, in dev 64 release 408ms but with VBO on, 64ms (6.3 times faster) and uses about 151MB of graphics memory 1,919,488 tetra10s – 16 solids of 100x100x1 block – each block has 119,968 elements Model 4 in 10.3.1/64 with no vertex arrays 746ms, in dev 64 release 750ms but with VBO on, 130ms (5.7 times faster) and uses about 252MB of graphics memory * AMD v3900 card

20 Page 20 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Graphics Performance Improvements Limits of Performance on Dell Precision Mobile Workstation I7-2860QM – 2.5 GHz 16 GB RAM nVidia M2000 – 2GB RAM Graphics Multiple Copies of the Boeing ISS Laboratory Module 4.5M Nodes and Elements Dynamic rotation performance using VBOs: ~8x faster, V10.3 to v11

21 Page 21 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Graphics Performance Improvements Benefits Increased productivity with faster graphics performance Dynamic rotation of large models >5x faster using VBOs

22 Page 22 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Working with Legacy FE Models It is sometimes necessary to work with legacy FE models for which there is no underlying geometry available, only the FE mesh Performing model updates to such models or simply changing the mesh density is difficult and time consuming Error prone: danger of not adhering to the original geometry topology The solution: Femaps create geometry from mesh capability

23 Page 23 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Create Geometry from Mesh Create surface geometry from existing shell meshes when there is no underlying geometry available Easily make model changes to existing meshes Easily remesh existing FE models Model topology maintained Automatic mesh / geometry associativity Mesh New Geometry New Mesh

24 Page 24 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Create Geometry from Mesh Workflow: Import FEA input file…

25 Page 25 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Create Geometry from Mesh Workflow: Create surfaces from patches of elements using Femaps selection methods…

26 Page 26 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Create Geometry from Mesh Workflow: Stitch the surfaces together…

27 Page 27 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Create Geometry from Mesh Workflow: Add cutouts, stiffener locations, whatever modifications are required…

28 Page 28 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Create Geometry from Mesh Workflow: Re-mesh the geometry to create a new FE model

29 Page 29 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Create Geometry from Mesh Benefits Increased productivity Easier to remesh or make model changes to legacy FE models for which there is no underlying geometry available Less error prone When making model changes or remeshing original model topology is maintained

30 Page 30 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Superelements What is a superelement? Represents a portion of a FE model SE defined by nodes (interior points) Connects and reduces to boundary points Exact static reduction Additional dofs added for dynamic reduction Analysis is performed on residual structure Superelement (SEID=70) Residual Structure (SEID=0) K, M B, P 70 0 Reduce upstream SEs to residual structure Perform analysis on residual structure Data recovery of upstream SEs

31 Page 31 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Superelements How are superelements used? Break a large model into substructures and analyze it piece by piece Reduce model size for advanced analyses like nonlinear and dynamics (analysis only performed on residual) Conveniently split a model up for organizational reasons Share model information while maintaining confidentiality – external superelements

32 Page 32 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Superelements What is an external superelement? Matrix representation of a component or substructure: [K], [M], [B], {P} Transfer model representation without compromising confidentiality – no geometry or FE model data included Winglet Model Common node attachment points

33 Page 33 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Superelements Winglet External Superelement Winglet: create external superelement Transfer SE data to wing OEM Wing: attach the external SE in the assembly run

34 Page 34 © Siemens AG 2013. All rights reserved. Siemens PLM Software Set up the creation of external superelements Creates the EXTSEOUT and ASSIGN statements Creates SPOINT/QSET entries on the fly for modal analysis (CMS) Femap 11 External Superelements

35 Page 35 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Superelements Set up for the inclusion of external superelements in subsequent assembly runs (Superelement license required) Automatically creates the ASSIGN statement

36 Page 36 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran 8.5: External Superelements External superelement loads Static loads are now stored with external superelements Load matrix {P a } written out in the user-specified format Column sorted to match load IDs Results data can be recovered in the system run with SELOAD bulk data entry

37 Page 37 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 External Superelements Benefits Increased productivity Easier to create and assemble external superelements Easier management of NX Nastran input reference entries Less prone to error All NX Nastran file management and external superelement entries are created automatically

38 Page 38 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 XY Plotting Considerations Increasing model size and corresponding quantity of results data lead to increasing difficulty in timely results comprehension and understanding of model behavior XY plotting is a crucial component in results processing The solution Streamlining and extension of Femaps XY plotting capability

39 Page 39 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Streamlined XY Plotting New XY Plotting Interface Enhanced graphics Unlimited number of curves can be displayed at the same time Any number of charts can be saved to the database Future development Extension to a full charting capability Additional chart types – spline, bar, pie

40 Page 40 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Streamlined XY Plotting

41 Page 41 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Streamlined XY Plotting XY plotting based on data series Different groups for different data series Different beginning and ending output sets for transient data View Femap functions Modern charting interface in a fully functional Femap pane Context sensitivity: right-click access to features and controls Title: font, location etc. Axes: logarithmic, grid lines, tick marks, hide Background, colors, style Markers: size, shape Labels: data values Tooltip querying

42 Page 42 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Streamlined XY Plotting Benefits Increased productivity Easier creation of XY plots Faster and easier comprehension of analysis results Easier report creation

43 Page 43 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration Solid composite modeling PCOMPS physical property for composites modeling with hexa and penta solid elements MATFT definition for failure theory material constants Benefits of solid composites Offer a more geometrically precise representation More accurate interlaminar shear stresses than a 2D laminate representation

44 Page 44 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration: Solid Composites Solid composite modeling (cont.) Ply layup modeled with solid hexas and pentas (linear and parabolic) 1 to n plies per element Ply thickness is relative Ply failure theories: Tsai-Wu, Hill, Maximum Stress, Hoffman, LaRC02 Interlaminar failure theories: Shear and Normal

45 Page 45 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration: Bolt Preloads for Solids Bolt preloads for solid elements Extension of beam element bolt preload modeling capability Represent preloaded bolts with solid hexa and penta elements Region definition with preload loading Benefit More detailed stress recovery in and around bolt locations

46 Page 46 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration: Nonstructural Mass Nonstructural mass regions Mass definition independent of structural model Define mass regions based on: Geometry (curves, surfaces) Elements (pbeam, pshell, psolid) Apply mass per area or length; total mass on area or length Mass regions are controlled within subcase level Benefits Easier control and distribution of nonstructural mass Can apply differing mass distributions in a single run

47 Page 47 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration: Variable Acceleration Load ACCEL entity Static acceleration load definition Allows different acceleration loads over different parts of the model Benefits Easier to simulate combined rotational and translational accelerations Example applications: Space systems

48 Page 48 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration: MCID MCID: specify shell element material angle definition by coordinate system ID Easy to specify material angle across many elements regardless of their orientation MCID x-axis is projected onto elements

49 Page 49 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration: Linear Contact Buckling Linear contact in buckling solutions Standard contact regions Set buckling solution in Analysis Manager Postprocessing reveals eigenvalue and eigenvector taking contact regions into consideration

50 Page 50 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 NX Nastran Integration Option to preserve INCLUDE statements Entities in the included data are not added to the Femap database Interfaces preference Support for PARAM,BAILOUT Prevents bailout of solution due to errors for model checking Nastran bulk data option Create ASSIGN statements in Analysis Text dialog in Analysis Manager

51 Page 51 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Mesh edge split Easy mesh splitting by selecting two nodes on an element edge Split propagates through the model maintaining a contiguous mesh Define limit split regions to control mesh splitting Splits hexa and penta solids, shells and beams

52 Page 52 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Mesh splitting: shell and beam model Automatically splits any beams encountered

53 Page 53 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Global plies Automatically create global plies as you are creating a layup

54 Page 54 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements New Add Connected Elements element selection method in the Entity Selection dialog Selects picked elements and all the elements to which they connect Pick Elements Add Connected Elements

55 Page 55 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Model Info tree scrolling Easier navigation and scrolling through long lists of entities like properties and materials Set maximum number of entities to display in File / Preferences Scroll using Previous / Next controls With pointer over visibility checkboxes: Scroll using mouse wheel Scroll using and shortcuts with mouse wheel

56 Page 56 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Database cleanup during save added to release any unused space Automatically compresses database reducing database size by freeing up previously used space e.g. after results output has been deleted Copy / Move to Set command added for loads and constraints Allows easier load and constraint definition set up within set definitions

57 Page 57 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Ability to show up to 2 additional output vectors Show results on line, shell, and solid elements at the same time Show results on different types of elements with same topology (i.e., beam, bar, and rod results) all in one plot.

58 Page 58 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Redesigned Select Postprocessing Data dialog Filters added to aid output set and vector data selection

59 Page 59 © Siemens AG 2013. All rights reserved. Siemens PLM Software Femap 11 Customer Driven Enhancements Results enveloping Quick results envelope creation directly from the Model Info tree

60 Page 60 © Siemens AG 2013. All rights reserved. Siemens PLM Software Q and A


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