SDA Webinar: Femap

What’s New in FEMAP v2019.1

David Cross 703-673-1125 [email protected] 5/22/2012 Page 1 FEMAP v2019.1 Overview

– Background of Structures.Aero – Demonstration – New functionality and updates – UI and visualization – Preprocessing – Meshing – Solver support – Postprocessing – Miscellaneous

5/22/2012 STRUCTURES.AERO Page 2 Who is Structural Design and Analysis?

Structural Analysis Value Added Software Reseller

• We are a group of 14 engineers that help our • Value added reseller providing software, training, clients design lightweight and load efficient and support for products we use on a daily structures. basis. • We support aerospace companies and other • Support for Femap, NX NASTRAN, Simcenter industries that require high level analysis. 3D, Fibersim, NX CAD, Solid Edge, and • We specialize in composites and lightweight HyperSizer. structures • Tools used include hand analysis, HyperSizer, Femap, NX Nastran, Fibersim, NX CAD, Solid Edge, Simcenter 3D, LS Dyna, and LMS.

5/22/2012 STRUCTURES.AERO Page 3 Our Engineers

• 14 Engineers • PhD, MS and BS Degrees – 1 Doctorate – 2 Master’s – 11 Bachelors • Aerospace, Mechanical and Engineer Science and Mechanics • 11 Engineers from Virginia Tech • All are experts at FEMAP and use FEMAP and NASTRAN every single day

5/22/2012 STRUCTURES.AERO Page 4 Some recent projects

Space Aircraft UAV Other Projects - Composite Crew Module for NESC - Piper M600 Wing - AAI Aerosonde - Hagler Dredges - Orion Heatshield for NESC - AAI Shadow M2 - Augusta, GA Canal Gate - Lockheed Orion Crew - Airbus Vahana Quad Module VTOL - Aurora VXP - TLD - Lockheed Orion Service - Commuter Craft - Amazon Prime Delivery - Ground Air Support Module experimental Aircraft - WFIRST Telescope for Drone NASA Goddard - TSC SpaceShipTwo - Vanilla VA001 - Blue Origin – New Glenn

5/22/2012 STRUCTURES.AERO Page 5 Siemens Value Added Reseller

CAE and CAD software Monthly Webinars • Femap • Fibersim • NX Nastran • NX CAD • Simcenter 3D • Solid Edge

Training • Introduction to Femap with NX Nastran • Advanced Femap with NX Nastran • Fibersim

Support • We specialize in providing Expert support of FEMAP, NASTRAN and Fibersim Learning Femap by Eric Gustafson • If we don’t know the answer, we go direct to the writers

5/22/2012 STRUCTURES.AERO Page 6 UI and Visualization MODFEM Preview and Tooltips

MODFEM Preview MODFEM Tooltips

Registers DLL to provide:

• FEMAP model image at last save • Basic model information tooltip • Version • Size • Save date • Number of entities • FEMAP notes

Restricted © Siemens AG 2019 Page 7 April 2019 Siemens PLM Software UI and Visualization Updates to Standard Entity Selection

Reset button is now an icon button (Red Circle with White “X”)

Select Visible icon button: Selects all entities of selected type which are “Visible” in the graphics window – “visible” entities are: • Not hidden by any setting for Visibility (i.e., overall entity type; individual entity; elements based on type or shape; or elements which reference hidden materials and/or properties) • Not hidden by the Draw/Erase Toolbar in any way • Displayed based on the current Group display settings • On a visible Layer Note: If entities are visible after using View -> Autoscale -> Visible, they are considered ‘Visible’ (i.e., if entities are off screen due to zoom or pan, they are still selected)

Restricted © Siemens AG 2019 Page 8 April 2019 Siemens PLM Software UI and Visualization Updates to Standard Entity Selection

Select Visible Only option on Pick^ menu When enabled, other options in this section of the Pick^ menu will also only select “visible” entities or add “visible” entities to the current selection • By Size (Curves, Surfaces, and Solids only) • By Color • By Model Data • By Output (Elements and Nodes only) • Add Connected Elements and Add All Connected Elements • Add Connected Fillets and Add Tangent Surfaces (Surfaces) • Add Connected Tangent Curves The Select Visible Only option is a model-based setting which can also be enabled/disabled via the Select Toolbar

Restricted © Siemens AG 2019 Page 9 April 2019 Siemens PLM Software Preprocessing Load/Constraint/Region Propagation with Geometry Splitting

Existing geometric based entities are now propagated during geometric split operations • Loads • Boundary conditions • Regions

Restricted © Siemens AG 2019 Page 10 April 2019 Siemens PLM Software Preprocessing Solid Data Tracking

Solid data tracking: • Color/Layer • Attributes • Loads • Constraints • Regions

Example 4 Solids – linear contact Loaded Constrained Different colors Different layers

Solid slice – all propagated

Restricted © Siemens AG 2019 Page 11 April 2019 Siemens PLM Software Preprocessing Bearing Force and Torque on Curve

Bearing Force on Curve – similar options to Bearing Force on Surface

Torque on Curve – similar options to Torque on Surface

Restricted © Siemens AG 2019 Page 12 April 2019 Siemens PLM Software Preprocessing Point and Node Projection

New options for Modify -> Project -> Nodes and Modify -> Project -> Point commands • Project radially about axes • Project spherically about point

Restricted © Siemens AG 2019 Page 13 April 2019 Siemens PLM Software Meshing Mesh Sweep Element and Element Face

• New option in Sweep: “Along Element Edges” • Choose elements to sweep first, then edges of planar or solid elements to sweep along • Single edge pick defines direction • Sweeps until an end is reached, or connecting back on itself • Option to specify a “stop” node • Mesh “morphs” to match existing mesh edges

Restricted © Siemens AG 2019 Page 14 April 2019 Siemens PLM Software Meshing Mesh Sweep Element and Element Face

• “Mesh morphing” explained: the sweep path defines the fixed node locations, the remaining nodes are parametrically mapped to match the original mesh

Restricted © Siemens AG 2019 Page 15 April 2019 Siemens PLM Software Meshing Mesh Sweep Element and Element Face and Edge

• Beams and plate edges sweep to plates • Plates and solid faces sweep to solids

Beams sweep into plates

Element edges sweep into plates

Restricted © Siemens AG 2019 Page 16 April 2019 Siemens PLM Software Meshing Hex to Tet Pyramid Transitions

• Pyramid elements automatically generated to transition from hexas to tetrahedrals • New node matching options • Select additional areas to create pyramid elements

Restricted © Siemens AG 2019 Page 17 April 2019 Siemens PLM Software Meshing Hex to Tet Pyramid Transitions

• Defaults – linear brick/wedge mesh, parabolic tetra mesh transition • Brick is linear – 8 nodes • Tetras are parabolic, with midside nodes dropped for brick connection • Pyramid is parabolic with base midside nodes dropped

CTETRA 82 1 252 1882 1861 20107 254 + + 255 47449 72908 CHEXA 7748 1 1862 1861 8748 8733 1883 1882+ + 8931 8916 CTETRA 25196 1 1882 16328 1883 20107 47448 41182+ + 47449 47450 47451 CPYRAM 38619 1 1882 1883 1862 1861 20107 + + 47449 47451 62823 72908 CTETRA 52851 1 1861 20107 1862 20586 72908 62823+ + 49988 62822 49989 CTETRA 63090 1 1862 20107 1883 18950 62823 47451+ + 62824 62819 51378

Restricted © Siemens AG 2019 Page 18 April 2019 Siemens PLM Software Meshing Hex to Tet Pyramid Transitions

Hex-meshable regions can be defined on interior of solids to further reduce total DOF

Restricted © Siemens AG 2019 Page 19 April 2019 Siemens PLM Software Meshing Hex to Tet Pyramid Transitions

Pyramids can connect to any surface quad mesh to transition to tetras

Restricted © Siemens AG 2019 Page 20 April 2019 Siemens PLM Software Meshing Mixed Linear/Parabolic Connection Tool

• Tool to connect mixed linear and parabolic elements • Remove midside node on parabolic side to connect • Add midside node and make element parabolic on the linear side to connect • In this example hex element is originally linear, while tetras and pyramids are parabolic, then auto connected • Interface bricks become parabolic with connected midside nodes

Restricted © Siemens AG 2019 Page 21 April 2019 Siemens PLM Software Meshing Mixed Linear/Parabolic Connection Tool

• Works with shell meshes and mixed beam, shell, solid

Example: • Small patch made parabolic • Modify / Update Elements to connect linear and parabolic elements • Connected linear shells become parabolic, with just the one midside node

Restricted © Siemens AG 2019 Page 22 April 2019 Siemens PLM Software Meshing Element Extrusion – New Options

Along Normals to Surfaces option

Restricted © Siemens AG 2019 Page 23 April 2019 Siemens PLM Software Meshing Element Extrusion – New Options

Extrude in Both Directions at once

Restricted © Siemens AG 2019 Page 24 April 2019 Siemens PLM Software Solver Support Simcenter Nastran

FEMAP v2019.1 includes Simcenter Nastran v2019.1

SOL 200 improvements • DESOBJ improvements to resolve multiple subcase responses

SOL 401 improvements • Bolt preload now allows 1D bolt elements (CBAR,CBEAM) • Support for PCOMP and PCOMPG • Transient dynamic subcase • Contact improvements – various improvements for robustness

Performance enhancements • RDMODES – various numerical improvements • SMP parallel has added Element Matrix Assembly (EMA) module • Frequency response numerical improvements automatically selected

Restricted © Siemens AG 2019 Page 25 April 2019 Siemens PLM Software Solver Support Simcenter Nastran SOL 401/402

New subcase types in SOL 401/402 • Nonlinear dynamics • Linearized buckling • Arc-Length methods in statics

Subcase 1 - Nonlinear Pre-Stress/Pre-Stiffen Subcase 2 – Sequentially Dependent Saw Tooth Shock Pressure and Resulting Transient Response Restricted © Siemens AG 2019 Page 26 April 2019 Siemens PLM Software Solver Support Nastran SOL 200 Design Optimization

SOL 200 Design Optimization

• Now supports frequency INIT MASTER(S) NASTRAN SYSTEM(442)=-1,SYSTEM(319)=1 response analysis ID FreqOpt,Simce SOL DESOPT • Similar setup to statics and CEND ANALYSIS = DFREQ modal DESOBJ(MIN) = 4 DESSUB = 7 TITLE = Simcenter Nastran DesTopOpt Analysis Set ECHO = PUNCH(BSTBULK) DISPLACEMENT(PLOT) = ALL SPCFORCE(PLOT) = ALL OLOAD(PLOT) = ALL FORCE(PLOT,CORNER) = ALL STRESS(PLOT,CORNER) = ALL SPC = 1 DLOAD = 1 FREQUENCY = 4 BEGIN BULK $ ******************************************************** $ Written by : Femap $ Version : 2019.1 $ Translator : Simcenter Nastran $ From Model : C:\Japan2018\Models\SOL200\FreqOpt.modfem $ Date : Tue Apr 2 15:05:16 2019 $ Output To : C:\Japan2018\Models\SOL200\ $ ******************************************************** $

New support for Nastran material coordinate system on elements

Similar to plate thickness/offset being carried on the element, solid orientation can have 1 property, multiple orientations

Modify -> Update Elements -> Solid Material CSys command has comprehensive options • Element • Csys • Generate new CSys with multiple alignment options

• Writes/reads Nastran MATCID card

Restricted © Siemens AG 2019 Page 28 April 2019 Siemens PLM Software Solver Support Nastran SOL 105 Multiple SUBCASE with STATSUB

INIT MASTER(S) Set up SUBCASES with NASTRAN SYSTEM(442)=-1,SYSTEM(319)=1 ID SOL105,Simce • Preload SOL SEBUCKL CEND TITLE = Simcenter Nastran Buckling Analysis Set • Buckling load ECHO = NONE DISPLACEMENT(PLOT) = ALL • Multiple subcases referencing SPCFORCE(PLOT) = ALL STRESS(PLOT,CORNER) = ALL preload and buckling load BGRESULTS(TRACTION,FORCE,PLOT) = ALL BGSET = 114 STATSUBs SUBCASE 1 SUBTITLE = Preload SPC = 1 • Change constraints in STATSUB LOAD = 2 SUBCASE 2 buckling SUBCASES SUBTITLE = Buckling Load SPC = 1 LOAD = 1 SUBCASE 3 METHOD = 1 STATSUB(BUCKLING) = 2 STATSUB(PRELOAD) = 1 SPC = 1 SUBCASE 4 METHOD = 1 STATSUB(BUCKLING) = 2 STATSUB(PRELOAD) = 1 SPC = 4 BEGIN BULK

Non-normal pressure read/write • Pressure on 2-D element edge – SURF153 • Pressure on shell/solid element faces – SURF154 • Pressure on shell element edges – SURF156

Bolt pre-load support • Beam pre-load – PRETS179 • Solid pre-load – PSMESH • Both written as ANSYS SLOAD

Random vibration analysis type • Read/write support for commands SPOPT, PSDUNIT, PSDFRQ, PSDVAL, PFACT, PSDCOM

Output control KEYOPT(8) for laminates and solid laminates has been added

Added ability to specify thermal options for gap elements and/or contact

Accessed via the ABAQUS Thermal… button when defining or editing a gap property or connection property (ABAQUS tab)

CONDUCTANCE section is used to specify items which write: “GAP CONDUCTION or “GAP CONDUCTION, PRESSURE

RADIATION section is used to specify items which write: “GAP RADIATION

Ability to display aero mesh displacement results from flutter analysis (must import from .f06 file)

New options for models with partial results, i.e. contact forces/stresses

Previously, FEMAP contoured all elements, with “0.0” assigned to nodes without results

For questions on the material covered For questions about pricing, or to see today, please contact David Cross. a demo, please contact Marty Sivic.

David Cross, Ph.D. Marty Sivic Senior Aerospace Stress Engineer Director of Sales [email protected] [email protected] 703-673-1125 724-382-5290

5/22/2012 STRUCTURES.AERO Page 34