Femap 11.3 What’s New

03.29.2016

Unrestricted © Siemens AG 2016

Siemens PLM Software

Femap Release Schedule

Regular release schedule

• v11.3 April 2016

• v11.2 March 2015

• 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

03.29.2016



Femap Direction

• 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

03.29.2016



Femap 11.3

Overview

New functionality and updates

• Preprocessing

• Meshing

• Solver support

• Postprocessing

• Performance

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Preprocessing

Draw/Erase Toolbar

• New toolbar for Draw/Erase

• Fast access to mesh and geometry on/off

• Choose entities to draw or erase

• Toggle back and forth

• Choose by element, property or material

• Grow/shrink selection

• Mesh only, geometry only, or linked

• Create Femap group from draw/erase data

• Load Femap group into draw/erase data

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Preprocessing

New View Rotation Options

• Default option still “Rotate about View Center”

• Similar to v11.2.x – first two items toggle

between view center and rotation center but

you will always be prompted to specify rotation

center

• New option – choose between rotating about

the “view axes” (screen) or the “model axes”

(global csys)

• New option – “Rotate about Coordinate

System” – simply pick a Femap csys

• “Rotate around vector” same as v11.2.x “rotate

around rotation axis”

Femap v11.2.x

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Preprocessing

Rotate Around Cursor

• Accessed via File / Preferences /

User Interface OR add a toolbar

icon

• Model rotates about the closest

entity on screen

• Model never swings out of view!

Pick Here

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Preprocessing

Zoom Around Cursor

Accessed via File / Preferences / User Interface OR add a toolbar icon

Zoom Here

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Preprocessing

Roll Thru Mode

• Roll-Thru: move “inside” the model

With Roll-Thru off (and in all previous

versions of Femap) you cannot move

through your model, you just zoom

closer and closer

• Roll-Thru moves the viewer’s eye to

a certain depth in the screen

direction, everything behind that is

clipped

• Zoom in enough and you’re inside,

and can turn around and see what

was behind you

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Preprocessing

Connection Manager

• New connection editor

• Easier management and access to connections

• Direct editing

• Sorting

• Filters

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Preprocessing

Streamlined Element Face Picking

• Face picking automatically loads

currently displayed elements as

possible entities to pick from

• Adjacent faces is now the default

• With front picking turned on, only

front faces can be selected, so

any face based selection can be

made with a single double-click

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Preprocessing


• Combined with the Draw/Erase

toolbar, connection setup for mesh

only parts is much easier and faster

• Workflow:

• With the front picking option turned

on

• Choose draw on the Draw/Erase

toolbar, and select the Element

option, then pick one element on

each leg

• In the selection box, choose Add All

Connected Elements

• Click OK

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Preprocessing


• Workflow (continued)

• Go to Connect / Connection

Region, choose elements, select

the Add Multiple button

• The visible elements are already

loaded, pick one on the end and

click OK

• All the connected faces are picked

automatically, repeat each time for

the ends

• In just a couple of clicks, six

connection regions are created

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Preprocessing


Workflow (continued)

• While still in the Connect /

Connection Region command, you

can use the Draw/Erase toolbar to

swap the drawn entities to pick the

other side of the connection

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Preprocessing

Beam Modeling Enhancements

Cross section input help

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Preprocessing


Immediate feedback of basic

cross section information

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Preprocessing


Press the

“Compute All

Properties” button

for full calculations

Shear center

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Preprocessing


Send report to

clipboard

Save report to BMP,

JPEG, PNG, GIF,

TIFF

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Preprocessing


Works with Nastran

shapes as well

And any custom

shape

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Preprocessing

Pick Visible

New method for front picking

• Turn on/off in File / Preferences / Graphics

• Much faster than database access

• Uses OpenGL (basic and performance)

to keep track of which ID is front

• If an entity is not represented by a pixel,

it will not be picked, i.e. blocked by

something else, or so small it did not

make a single pixel

• Works in single pick, box, circle,

polygon, etc.

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Preprocessing

Unique Property Icons

• Unique property icons for properties

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Preprocessing

Intelligent Entity Availability

• Only Properties which are appropriate for current Element type are available

• Only Connection Regions are available when creating a Connector

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Preprocessing

Renumber All

• Renumber all

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Preprocessing

API Program File Libraries

• Custom Tools

• Library of API programs delivered with the software

• User Tools

• Reference for your own corporate-wide API program library

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Preprocessing

Miscellaneous

• Plane to Plane method now available when using commands on the Modify,

Align… menu. Similar to Between Coordinate Systems method, with specified

plane defining X and Y axes, plane normal defining Z axis.

• Loads

• Added ability to modify the color, modify the layer, scale the values, change

the function ID, or delete loads of specified type(s) in the active Load Set, All

Load Sets, or any number of selected Load Sets.

• Updated Modify, Update Other, Load Phase and Delete, Model, Load - Body

commands to allow selection of any number of Load Sets.

• Constraints

• Added ability to modify the color, modify the layer, or delete constraints of

specified type(s) in the active Constraint Set, all Constraint Sets, or any

number of selected Constraint Sets.

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Femap 11.3

Overview


• Preprocessing

• Meshing

• Solver support

• Postprocessing

• Performance

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Meshing

Quad Meshing Improvements

• Max Quads

• Goal: all quad mesh through triangle removal

• Will allow triangles when required

• With an odd number of edges there will always be one triangle

• Example: default mesh contains 39 triangles – with Max Quads it’s just 1

Default mesh Max Quads mesh

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Meshing


• Max Quads

• Mesh size changed by 1 – all triangles removed!

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Meshing


Max Quads combined with Quad Layers provides maximum mesh customization

and flexibility

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Meshing


• Internal element growth now available with quad meshes

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Meshing

Mesh Smoothing Improvements

• New smoothing algorithm for highly curved surfaces

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Meshing

Interactive Mesh Refine

• Interactive update of shell/line mesh

• Auto transition

• Shrink/grow selection

• Drag selection

• Loads/constraints propagated automatically

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Meshing


Example:

• From an existing Nastran input file imported into Femap, mesh refinement is

required in the two areas indicated

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Meshing


Example (continued)

• At the T junction use Split Edges option

• Choose Edges

• Grow

• Done

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Meshing


Example (continued)

• At the hole, refine using Split Edges twice

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Meshing


Example (continued)

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Meshing

Multiple Element Splitting

• Multiple elements (nodes) can be

selected for splitting in a single

command

• More efficient mesh refinement

process

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Meshing

Hard Point Auto Update – Meshing Toolbox

Mesh hard point auto-update

within meshing toolbox

Meshing toolbox commands

that update surfaces will now

automatically manage

moving mesh hard points to

any split surfaces

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Meshing

Geometry Cleanup – Meshing Toolbox

Small curves and extraneous points are

captured in the mesh

New feature removal tools to

permanently remove them

Similar to composite curves and

composite surfaces, but done at a

geometric (Parasolid) level

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Femap 11.3

Overview


• Preprocessing

• Meshing

• Solver support

• Postprocessing

• Performance

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Solver Support

Abaqus ODB Attach

• First time support of ODB file

• Attach to (instead of internalizing) Abaqus results

• Uses Abaqus scripting interface

• Supports prior version ODB automatically

• Supports field output and recovery of job data including step and increment

files

• Works like currently supported results formats including Nastran OP2 and XDB,

CSV, and Femap FNO

• Fully compatible with all postprocessing functionality

• Selected results can be internalized for data management purposes

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Solver Support

Nastran Results Enhancements

Output set titles – existing

TITLE, SUBTITLE, LABEL,

SUBTITLE,LABEL

Title of the overall study

Default

Analysis Set Title

File Name

Nastran Title

Use static subcase IDs – NEW

Track revisions – NEW

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Solver Support

Nastran Enhancements

Nastran element quality checks

• Interactive Nastran aspect ratio

checks for linear and parabolic plate

elements added

• Interactive Edge Point Length Ratio

(EPLR) check for TRIA6

• Linear plate Nastran element quality

checks are now available in meshing

toolbox and entity editor

• API access provided for new Nastran

quality checks

• New quality checks also added to

analysis manager NASTRAN

GEOMCHECK dialog

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Solver Support


Nastran frequency response enhancements

• Read and write support for all Nastran FREQ entries

• FREQ, FREQ1, FREQ2, FREQ3, FREQ4 and FREQ5

• New solution frequency tab in Nastran dynamic analysis form

• Created frequency lists available for any analysis set

Select Desired Nastran Format

Enter Required Data

Add Creates the List

Definition

Check box to Select Frequencies

for Current Analysis Set

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Solver Support


Nastran frequency response enhancements

• Selected frequency list definitions are written to analysis set

FREQ 3.1481722.1564039.1646357.1728675.181099321.8610621.90752+ + 22.2562823.0755723.1246123.4927424.2900724.34169 24.729225.50457+ + 25.5587825.7196225.9656626.7190826.7758627.1484827.2021228.57735+ + 30.0062231.43509 FREQ2 3 200. 300. 5 FREQ4 3 200. 300. .1 3

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Solver Support


• Non-zero constraints SPC in constraint set

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Solver Support


• Spring/Damper to Ground

elements (CBUSH)

• NX Nastran documentation:

• If GA and GB are coincident, or

if GB is blank, then CID must

be specified. When GB is

blank, a grounded spring and

damper is created at GA

• In addition, DOF Spring to

Ground elements are now

available (CELAS2)

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Solver Support

Solver Launch Control

• Configure multiple solvers within Femap

• Avoids DOS environment variables

• Add additional command line options

• Each analysis set can be connected to a

different solver option

• Integrated (Femap with NX Nastran)

• Enterprise via linked solver

• VisQ for remote batch solving

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Solver Support

NX Nastran Solution Control

• Additional command line access

• Default from file – preferences

• Additional GPU control – expect more

options as they become available

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Solver Support

ANSYS Command Input

• ANSYS version from Femap setting

• ANSYS product license option

• Choose including input text in output

text

• Jobname and output directory

• Database and workspace memory

• Additional command line arguments

Input shown in the tree of analysis

manager

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Solver Support

ANSYS Analysis Monitor

• Same look/feel as

NX Nastran

• Switch between

output text file and

error file

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Solver Support

LS-DYNA Translator

• Added support for non-zero

constraints

• Added remaining fields for MAT_54

and will now accept CRIT=0

• Suppress automatic output of

*CONTROL_SOLUTION card

• Limit number of coordinate system

translation messages via max

repeated errors field of preferences’

messages tab

• From analysis manager, provide

ability to define fields of

*CONTROL_IMPLICIT_AUTO and

*CONTROL_IMPLICIT_GENERAL

• Contact card comments now contain

connector and property titles

03.29.2016


Page 59 Siemens PLM Software

Solver Support

ANSYS & Abaqus CBUSH/PBUSH Input

• General Issue: ANSYS and Abaqus do not have an element which exactly

matches the (CBUSH/PBUSH in Nastran) Spring/Damper element in Femap

• Additional Requirement: Spring/Damper elements must behave like

CBUSH/PBUSH when solved with ANSYS or Abaqus, otherwise different

results are calculated

• Possible Solution: Simply include stiffness and damping of Spring/Damper

elements when creating input files for ANSYS or Abaqus

• Our Solution: Spring/Damper elements are written as MATRIX27 elements for

ANSYS; written as *MATRIX INPUT for Abaqus; with matrix values (stiffness

and/or damping) calculated using the same approach as CBUSH/PBUSH

• Limitation: nonlinearity and frequency dependency are ignored, as the matrix

entries are calculated only once

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Solver Support


B K

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Solver Support


• Element Stiffness:

ET,3,MATRIX27,0,0,4 !kopt1=0, positive definite/semi-positive

!kop2=0, symmetrical

!kop3=4, stiffness

ANSYS element type number, incremented automatically in Femap

• Element Stiffness Matrix:

78

7776

3324

231413

12321

m

y

s

R,3 !3=real constants number

RMODIF,3,1,K(1,1) !K11 @ 1

RMODIF,3,2,K(1,2) !K12 @ 2

RMODIF,3,3,K(1,3) !K13 @ 3

…

RMODIF,3,12,K(1,12) !K(1,12) @12

…

RMODIF,3,78,K(12,12) !K(12,12) @78

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Solver Support


• Element Damping:

ET,4,MATRIX27,0,0,5 !kopt1=0, positive definite/semi-positive

!kop2=0, symmetrical

!kop3=5, damping

ANSYS element type number, incremented automatically in Femap

• Element Damping Matrix:

78

7776

3324

231413

12321

m

y

s

R,4 !4=real constants number

RMODIF,4,1,B(1,1) !B11 @ 1

RMODIF,4,2,B(1,2) !B12 @ 2

RMODIF,4,3,B(1,3) !B13 @ 3

…

RMODIF,4,12,B(1,12) !B(1,12) @12

…

RMODIF,4,78,B(12,12) !B(12,12) @78

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Solver Support


One CBUSH element verification

Set 1: NX Nastran Set 2: ANSYS Set 3: Abaqus

Results are same.

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Solver Support

ANSYS CBUSH/PBUSH Input

Transient analysis of a hinge verification

ANSYS stress

NX Nastran stress

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Solver Support

CBUSH Translation Notes

• For ANSYS:

PBUSH to MATRIX27. K and B to two elements, one for K, another for B.

SPRING/DAMPER to COMBI14.

“To Ground”: creating a dummy node and apply “D,dummyNode,ALL,ALL”.

• For Abaqus:

PBUSH to *MATRIX INPUT,… *MATRIX ASSEMBLE. K and B, two matrices.

Spring (K input) to SPRING2/A, Damper (B input) to DASHPOT2/A.

PBUSH to Ground, only top-left quarter (11) sub-matrix is written.

SPRING to Ground (K input) to SPRING1.

Damper to Ground (B input) to DASHPOT1.

*MATRIX INPUT,… *MATRIX ASSEMBLE not applicable to analysis other than

statics/mode, for other analysis, CBUSH is not translated and warning is issued.

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Solver Support

MATRIX27 input from Femap

Because PBUSH is translated to MATRIX27 of ANSYS and MATRIX27 is 12x12,

A 12x12 matrix (K,B,M) is added to Femap to handle its input from Femap

Accessed

here

Still keep 6x6 matrix input.

A switch to12x12.

Choice of K,B,M.

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Solver Support

MATRIX27 input from FEMAP

A switch to 6x6.

Choice of K,B,M.

Values filled after reading hindge.ans into Femap.

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Solver Support

Nonzero constraints in ANSYS

• Nonzero constraints were added in Femap 11.3

• Nonzero constraints are easily added to ANSYS as follows

• D,nodeID,dofID,value

• “D,nodeID,dofID,value” are read into Femap 11.3 and stored as a constraint

with nonzero value

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Femap 11.3

Overview


• Preprocessing

• Meshing

• Solver support

• Postprocessing

• Performance

03.29.2016



Postprocessing

Arrow Plots

Contour Vector plots have been completely overhauled for v11.3 and have been

renamed Contour Arrows

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Postprocessing

Contour Arrow Plots

Automatic vector selection: the user specifies a single contour vector and Femap

automatically selects appropriate output vectors to display as well as the correct

orientation for relevant elements

Individual output vector selection is still available for advanced users

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Postprocessing

Contour Arrow Plots

On-the-fly results transformations: nodal, shell and solid results can now be

displayed in a transformed orientation without having to first manually create a

set of transformed results

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Postprocessing

Contour Arrow Plots

Individual component display: display of individual components can be

selectively be turned on and off without having to reselect vectors

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Postprocessing

Contour Arrow Plots

Automatic styling: based on the selected output vector, Femap can automatically

select the arrow styles that are the most appropriate for the type of vector

displayed. These settings can always be overridden by the user

Arrow Heads

Arrow Location

Arrow Colors

Moment Head Double Head Single Head No Head

Arrow at Tail Arrow at Center

Contour Colors View Colors

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Postprocessing

Contour Arrow Plots

Automatic styling

Plate principals

• Double-headed arrows

• Located at center

Plate membrane

• Single-headed arrows

• Located at tip

• Designed to show

directions for positive

shear flow

Beam axial / shear

• Axial shown with

double-ended arrows at

center

• Shear shown with single

headed arrows at tip

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Postprocessing

Contour Arrow Plots

Shear / resultant display: arrows can be shown as individual components,

resultants or selected axial / shear components

Total output vectors (i.e. 1..Total

Translation) are automatically paired

with the matching components and

shown as resultants

Component output vectors (i.e. 2..T1

Translation) are automatically paired

with the matching components and

shown as individual components

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Postprocessing

Contour Arrow Plots

Shear / resultant display

CBUSH forces in the element

coordinate system shown as

individual components

CBUSH forces in the element

coordinate system shown as shear

(Y force / Z force) and axial (X force)

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Postprocessing

Contour Arrow Plots

Output listing: when doing automatic vector selection,

List / Output / Contoured Results to Data Table command lists Contour Arrow

results to the data table as they appear on screen

All results remain sortable and entities can be highlighted, even when resultants

or shears are displayed

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Postprocessing

Freebodies

Glue and contact: support has been added for glue and contact results as

discrete freebody contributions

For decks created outside Femap, requires

BCTRESULTS or BGRESULTS case

control (automatically included in Femap)

GPFO table still shows an imbalance in the

total nodal summation, so same result can

be achieved by including the reverse of the

nodal summation contribution

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Postprocessing

Freebodies

Linear contact model

between hex and tetra

mesh, fixed at the ends.

50# cantilever load

applied to tip of hex mesh

Deformed plot showing

linear contact

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Postprocessing

Freebodies

Freebody plot using

applied, SPC, and

peripheral element

contributions on nodes

and elements of hex

mesh. Applied load is not

balanced

Contact contribution has

been added – summation

is now in equilibrium

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Postprocessing

Freebodies

Freebody listing has been rewritten to consolidate commands and add additional

features

v11.2.2

v11.3

Single Dialog

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Postprocessing

Freebodies

Freebody listing

• Consolidated into a single

dialog box

• Interface loads can be sent

directly to the data table

• Clipboard is a new listing

destination option for tab

delimited data

• Listing of F06-style GPFO data

has been streamlined

• Dialog remembers previous

settings

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Postprocessing

Freebodies

Freebody listing: interface loads in data table

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Postprocessing

Freebodies

Freebody listing

• Choosing the clipboard output destination pastes tab delimited data to the

clipboard, similar to what is seen in the data table

• Convenient for pasting to Excel or similar applications

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Postprocessing

Freebodies

Freebody listing: F06-style GPFO data

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Postprocessing

Freebodies

Default settings: freebody defaults can be set in Preferences / Results tab

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Postprocessing

Charting Enhancements

Enhanced support for analysis studies

Specify individual studies for

Vector vs. Output Set and Vector

vs. Vector data series Quickly create new data series

directly from the Model Info Tree.

Can be added to existing charts or

new ones can be created

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Postprocessing

Data Surface Mapping and Miscellaneous

Customer requests

• New APIs to map locations into data surface in same model:

MapOutput:GetOutputDataSurface(ds_id)

MapOutput:MapOutputDataToLocation(count, vXYZ, vValXYZ, vIsValid)

vIsValid returns 0 if no data map found

• Fixed bug where data surface could become corrupted when using Data

Surface Editor

• Fixed filepath name bugs in Qman

• Validated license server functionality on CentOS v7

03.29.2016



Femap 11.3

Overview


• Preprocessing

• Meshing

• Solver support

• Postprocessing

• Performance

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Performance

Performance Improvements

Addressed specific customer issues:

• Nastran XDB Attach: composite element results – 60x

• Femap sets (API feSet object)

Accessed from your APIs and used internally in Femap are now 30x faster

adding and removing IDs

• Expanding pressure loads on shell elements attached to a surfaces 240x faster

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Performance

Performance Graphics (PG)

• Performance Graphics continues to evolve

• Rigid elements: RBE2, RBE3, and RSPLINE elements are now drawn with PG,

including their DOF labels, independent/dependent symbols and arrows

indicating direction

• Contour Style: arrows are now drawn in PG, together with their numerical data

• Deformed Style: arrows are now drawn in PG, together with their numerical

data

• Performance Graphics will be temporarily disabled when an unsupported

command is used (i.e., Dynamic Cutting Plane, Dynamic IsoSurface, etc), then

be enabled again after exiting the command

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Q and A

Femap 11.3 What’s New - Siemens PLM...

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