Chapt1 Bracket Rev31

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ABAQUS withHyperWorks


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2 Using ABAQUS with Altair HypeWorks Altair Engineering


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For technical support, contact us at:

PHONE (248) 614-2425. Mon Thurs: 8:00 AM to 7:00 PM (EST).Fri: 8:00 AM to 5:00 PM (EST).

Ask for HyperMesh SupportFAX (248) 614-2410EMAIL [email protected] www.altair.com

FTP Site:

ADDRESS ftp.altair.com or ftp2.altair.comLOGIN ftpPASSWORD

Copyright 2003 Altair Engineering, Inc., All rights reserved.

ABAUQS with Altair HyperWorks

Trademark Acknowledgments:

AltairHyperView and Altair HyperMesh are registered trademarks of Altair

Engineering, Inc.

All other trademarks and registered trademarks are the property of theirrespective owners.

ABAQUS_with_HW60_ReleaseVer1.pdf, Created on 12/15/2003

Altair Engineering Using HyperWorks with ABAQUS 3
ftp://ftp.altair.com/ftp://ftp.altair.com/


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Table of Contents

Introduction to ABAQUS with HyperMesh........................................5

Chapter 1: Pre-processing for bracket and cradle analysis..............7

Chapter 2: Pre-processing for half disc analysis............................29

Chapter 3: Pre-processing for brake disk analysis.........................41

Chapter 4: Pre-processing for crash tubes analysis.......................63

Chapter 6: Introduction to HyperView.............................................79

Chapter 7: Post-processing for bracket and cradle analysis..........87

Chapter 8: Post-processing for half disc analysis...........................95

Chapter 9: Post-processing for brake disk analysis.....................103

Chapter 10: Post-processing for crash tubes analysis.................111

Appendix A: ABAQUS with HyperView.........................................119



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Preface

The course familiarizes you with creating ABAQUS Standard and Explicit inputfiles using HyperMesh and post-processing ABAQUS ODB files usingHyperView. In the post-processing section of this course, the Altair tools

AbaqusODB Upgrade and HvTrans are discussed.

The first four chapters focus on ABAQUS with HyperMesh while the last fivefocus on ABAQUS with HyperView. Each chapter includes hands-on exercises.

Prerequisites

The requirement for this class is a familiarity with any HyperWorks application.



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Introduction to ABAQUS withHyperMesh

The HyperMesh ABAQUS interface is based on ABAQUS version 6.2.1.

HyperMesh user profile for ABAQUS

To work with ABAQUS, load the HyperMesh ABAQUS user profile. Doing thisloads an ABAQUS template, sets the ABAQUS feinput reader and loads the

ABAQUS macro menu. Also, some panels and panel options are renamed orremoved to make the GUI ABAQUS focused.

The template contains ABAQUS specific formatting instructions HyperMesh usesto create an ABAQUS input file. HyperMesh has three ABAQUS templates Standard2D, Standard3D and Explicit. The Standard2D template generates aninput file for two-dimensional models containing planar or axisymmetric elementsfor use with ABAQUS/Standard. The Standard3D template generates an inputfile for three-dimensional models for use with ABAQUS/Standard. The Explicttemplate generates an input file for use with ABAQUS/Explicit.

The ABAQUS macro menu contains six pages of tools. The Abaqus page is

specific to this macro menu. It contains two tools NastranToAbaqus andContact Manager. The NastranToAbaqus tool converts certain entities from aNASTRAN bulk data file to an equivalent ABAQUS input file. The ContactManager tool allows you to create, edit and review ABAQUS contacts and theirsurfaces and properties. The Disp, Geom, QA, Mesh and Userpages are thesame pages in the default HyperMesh macro menu.

Changing the ABAQUS user profile to another profile, such as OptiStruct, doesnot alter the ABAQUS model.



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Chapter 1

Pre-processing for Bracketand Cradle Analysis

In this chapter using HyperMesh

View elements, materials and section properties as they will appear in theABAQUS input file

Create and edit ABAQUS materials and section properties

Select ABAQUS entity types for HyperMesh element and load configurations

Create boundary conditions and loads for model and history data

Create *STEP

Export ABAQUS input file

The hands-on exercises comprise of setting up an analysis for the linear staticresponse of a cradle and bracket assembly to a 100 kN load on the bracket, withthe cradles ends fully constrained. Creating an ABAQUS input file for thisanalysis using HyperMesh is broken down into two sections:

Complete the model data

Open HyperMesh file containing some pre-defined model dataDefine material and section property for cradleCreate *KINEMATIC COUPLING to constrain bracket to cradle

Define the history dataCreate *STEP and *END STEP options and define analysis procedureCreate *BOUNDARY at the cradles ends and add to *STEP

Apply *CLOAD to bracket and add to *STEP



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Specify output requests and add them to *STEP

Comments: Units used in this model are as follows:

Length Millimeters (mm)

Force Kilonewtons (kN)

Section 1: Complete the model data

Exercise 1.1: Retrieve pre-defined model data

Open a HyperMesh binary file containing the following ABAQUS model data:

*ELEMENT,TYPE=C3D6,ELSET=bracket and*ELEMENT,TYPE=C3D8,ELSET=bracket

*ELEMENT,TYPE=S3,ELSET=cradle and*ELEMENT,TYPE=S4,ELSET=cradle

Two *KINEMATIC COUPLING entities at the brackets bottom bolt holes

*MATERIAL named aluminum

*SOLID SECTION property for ELSET bracket with the aluminum*MATERIAL associated to it

Retrieve HyperMesh binary file

1. Enter the files panel.

2. Select the hm file sub-panel.

3. Click retrieve (the bottom retrieve button) and selectBracket_Start.hm.

4. Click Open.

5. Click return.

Overview of HyperMesh card images



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HyperMesh card images allow you to view images of keywords and data lines fordefined ABAQUS entities as interpreted by the loaded template. The keywordsand data lines will appear in the ABAQUS input file as you see them in the cardimages. Additionally, for some card images, you can define and edit variousparameters and data items for the corresponding ABAQUS keyword.

Use the card(Card Editor) panel in the permanent menu to review and edit cardimages. Also, for many entities, their card image can be viewed and edited fromthe panels in which they are created.

Overview of *ELEMENT with section property

The ABAQUS keyword

*ELEMENT, TYPE = , ELSET =

is defined by ABAQUS elements collected in a HyperMesh component collector.

One *ELEMENT keyword is written to the ABAQUS input file for each elementtype in the component. The name of the ELSET is the name of the component.

The ABAQUS sectional property associated to the *ELEMENT is defined by thecomponents card image. The material associated to the property is defined by aHyperMesh material collector associated to the component. The diagram belowshows how a *ELEMENT and its associated property are organized inHyperMesh.

*ELEMENT,TYPE=C3D4,ELSET=INDENTOR340, 454, 455, 463, 453341, 453, 463, 464, 452

*SOLID SECTION, ELSET= INDENTOR, MATERIAL=STEEL

There are more than a dozen component card images for the ABAQUStemplates. Here are a few of them: SOLIDSECTION, SHELLSECTION,GASKETSECTION, BEAMSECTION, SPRING, JOINTand MASS.

Define an *ELEMENT keyword with an associated sectional property as follows:Using the collectors panel, create a component collector with a card image anda material collector. If necessary, edit the components card image to define datalines and parameters for the sectional property. Lastly, organize elements intothe component.


Component collector name

Component collector card image SOLIDSECTION

Material collector name


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Overview of *MATERIALs in HM

An ABAQUS *MATERIAL is a HyperMesh material collector with a card image.There are three card images for the HyperMesh ABAQUS templates. They are

ABAQUS_MATERIAL, GASKET_MATERIAL (for the Standard templates) andCONNECTOR_BEHAVIOR.

There are two methods to create a material collector and associate it to acomponent. Both methods use the collectors panel. For the first method, use thecreate sub-panel with the collector type set to mats. Create a material collectorwith a card image and edit it to define material data. Then select this materialwhen you create a component. For the second method, let HyperMeshautomatically create a material collector when you create a component. Thematerials name is the components name. Then use the card image sub-panelto assign a card image to the material and edit it to define material data. With thismethod, the material is automatically associated to the created component. Thefirst method is the recommended approach.

Use the update sub-panel to update any component with any material.

In HyperMesh, it is possible to add as many data lines as you desire for amaterial (such as *PLASTIC). However, it is not possible to import intoHyperMesh a data file, such as a file with yield stress, plastic strain andtemperature data in comma delimited format, to create the data lines.

Exercise 1.2: Review the models content

Use the Card Editorpanel to review the models content.

Use Card Editorpanel to view elements

1. Enter the cardpanel in the permanent menu.

2. Click the switch on the left side of the menu panel and select elems.

3. Click on a bracket element in the graphics area to select it.

4. Click edit.

A card image for the selected element pops up. The element is *ELEMENT,TYPE=C3D8 belonging to the ELSET named bracket.



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The bracket is modeled with type C3D8 and C3D6 elements (hexa and pentaelement configurations). Using the maskpanel in the Toolpage, you canmask the C3D8 elements to see only the C3D6 elements.

5. Click return to exit the card image and return to the Card Editorpanel.

Use Card Editorpanel to view sectional properties

Edit a components card image to view the image of the section propertyassociated to the elements in the component. You should still be in the CardEditorpanel.

1. Click the switch and select comps.

2. Click the yellow comps selector.

Notice there are two HyperMesh component collectors named cradle andbracket. The cradle component contains all the orange elements while thebracket component contains all the blue elements including the two*KINEMATIC COUPLING entities at the brackets bottom bolt holes. In thegraphics area, these entities have the label KINCOUP.

3. Select bracket.

4. Click select.

5. Click edit.

A card image pops up. It shows the *SOLID SECTION definition for theELSET named bracket. The aluminum *MATERIAL is associated to this*SOLID SECTION.

6. Click return.

7. Click resetunder the yellow comps selector.

8. Click on a cradle element in the graphics area to select it.

9. Click edit.



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HyperMesh states Could not find section in template for entity, aborting inthe header message bar. This means no card image is assigned to thecradle component collector. One will be assigned to it later in this chapter.

Use Card Editorpanel to view a *MATERIAL

Edit the aluminum material collector to view the defined aluminum *MATERIAL.

You should still be in the Card Editorpanel.

1. You should still be in the Card Editorpanel.

2. Click the switch and select mats.

3. Click the yellow mats selector and select aluminum.

4. Click selectand then click edit.

A card image pops up. It contains ABAQUS data lines defining the material.

5. Click return twice to return to the main menu.

Review of the models content is complete. Next, complete defining the modeldata.

Exercise 1.3: Create a *MATERIAL

Using the collectors panel, create a *MATERIAL with steel properties. In thenext exercise, you will associate this material to the sectional property for theELSET cradle (the component collector named cradle).

1. Enter the collectors panel and select the create sub-panel.

2. Click the switch corresponding to the collector type and select mats.

3. Click name = and entersteel.

4. Click card image = and selectABAQUS_MATERIAL.

5. Click create/editto create a *MATERIAL and edit it by adding additionalinformation to it.



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6. In the menu area, activate Elastic(check the Elasticcheckbox). This createsthe *ELASTIC card. You might need to slide the scroll bar down to seeElastic.

7. In the pop-up card image, enter200 KN/mm2 for elastic modulus in the data

entry field underE(1).

8. Enter 0.3 for Poissons ratio in the data entry field underNU(1).

9. Return to the main menu.

Defining the *MATERIAL for the cradle is complete.

Exercise 1.4: Define *SHELL SECTION for ELSET

cradle

Define the sectional property *SHELL SECTION for the ELSET cradle. Specifythe cradle thickness in it and then associate the *MATERIAL steel to it. Youshould still be in the collectors panel.

Create *SHELL SECTION and specify thickness

First, assign the card image SHELLSECTIONto the component collector namedcradle. Second, edit the card image to specify the cradles thickness.

1. Select the card image sub-panel.

2. Select comps forcollector type.

3. Click name = twice and select cradle.

4. Click card image = and select SHELLSECTION.

5. Click load/edit.

Notice the *SHELL SECTION keyword in the pop-up card image:

*SHELL SECTION, ELSET=cradle, MATERIAL=

The material still needs to be specified. Do this in the next section.



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6. Click [Thickness]and enter2.5 mm in its data entry field.

7. Click return to exit the card image and go back to the collectors panel.

Associate *MATERIAL steel to *SHELL SECTION

Update the component collectorcradle by associating the material collectorsteelto it. You should still be in the collectors panel.

1. Select the update sub-panel.

2. Click the yellow comps selector and select cradle.

3. Click select.

4. Click material = and select steel.

5. Click update.

6. Activate material id.

7. Click update.

Review completed *SHELL SECTION definition for ELSET cradle

Edit the card image for the component collectorcradle. You should still be in thecollectors panel.

1. Select the card image sub-panel.

2. Click name = twice and select cradle.

3. Click edit.

Notice the steel material is now specified in the section property definition forthe cradles elements:

*SHELL SECTION, ELSET=cradle, MATERIAL=steel

4. Click return twice to go back to the main menu.



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Creation of the *SHELL SECTION for the ELSET cradle is complete.

Overview of HM entity configurations and types

HyperMesh element and load entities have two identifiers: configuration and

type. The entity configuration is a HyperMesh core feature while the entity type isdefined by the template. For example, some HyperMesh element configurationsare rigid, spring, quad4, and hex8. Possible types of the quad4 configuration inthe Standard3D template are S4, S4R, S4R5, M3D4, M3D4R, R3D4 and DS4.Similarly, some HyperMesh load configurations are constraints, force, pressure,and temperature. Possible types of the pressure configuration in all ABAQUStemplates are DLOAD, FILM, DFLUX and DECHARGE.

Most of the HyperMesh element and load configurations have their own panels.Use the elem types panel in the 1D, 2D and 3D pages and the load types panelin the BCs page to select the desired ABAQUS entity type for different

configurations of elements and loads.

Overview for kinematic constraints in HM

With the exception of *EQUATION, ABAQUS kinematic constraints, such as*KINEMATIC COUPLING and *MPC (BEAM, TIE, LINK, PIN), are rigid (1D)elements in HyperMesh. Create them using the rigids panel in the 1D page.Organize them into HyperMesh component collectors. No sectional property ormaterial is needed for these entities. Hence, you can either organize them intotheir own component without a component card image or into a component

containing different ABAQUS entities.

Overview for creating a component for entities notneeding a material

When creating a component collector for ABAQUS entities not needing amaterial, select an existing material to avoid creating an unneeded material.

Any unused materials existing in the HyperMesh database will not be written tothe ABAQUS input file. An unused material has no card image.

Exercise 1.5: Constrain bracket to cradle

Create the ABAQUS constraint *KINEMATIC COUPLING at the brackets top bolthole to provide coupling between the bracket and cradle elements to simulate abolt. The model already contains two *KINEMATIC COUPLING entities, one ateach of the brackets bottom bolt holes. They are organized into the bracket



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component collector. Create a new component collector and organize all the*KINEMATIC COUPLING entities in the model into this new collector.

Create a component collector

This component collector will contain the *KINEMATIC COUPLING you create.

Select any existing material collector to avoid creating an unneeded material.

1. Enter the collectors panel and select the create sub-panel.

2. Select comps forcollector type.

3. Click name = and enterconnection.

4. Click the switch undercreation methodand select no card image.

5. Optionally pick a color for the component collector.

6. Select an existing material to avoid creating an unneeded material.

7. Click create.

8. Click return to exit the collectors panel.Notice in the header message barconnection is the current componentcollector. All elements, surfaces and lines created from this point areautomatically organized into this component.

Select *KINEMATIC COUPLING type for the HM rigid elementconfiguration

1. Enter the elem types panel in the 1D page and select the 1D sub-panel.

2. Click rigid = and select KINCOUP.

3. Click return to exit the elem types panel.



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All elements created from the rigids panel from this point forward will be type*KINEMATIC COUPLING.

Set the graphics display view

1. Enter the viewpanel in the permanent menu.

2. Click restore1 to restore the pre-existing top bolt hole view.

Create a node at the center of the bolt hole

The node you create will be the *KINEMATIC COUPLING reference node.

1. Enter the distance panel (in the Geom page) by pressing the shortcut key F4.

2. Select the three nodes sub-panel.

3. In the graphics area, click on three nodes at the top side of the top bolt hole toselect N1, N2and N3. Refer to the figure below.

4. Click circle center.

5. Click return to exit the distance panel.

Create a *KINEMATIC COUPLING



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1. Enter the rigids panel in the 1D page.

2. Select the create sub-panel.

3. Click the switch corresponding to dependent: and select multiple nodes.

4. Click the yellow node selector corresponding to independent: to make itactive. When active, it has a blue halo around it.

5. In the graphics area click the node you created at the center of the bolt holeto select it.

6. The yellow nodes selector corresponding to dependent: is now active. Selectthe nodes defining the bolt hole on the top side of the brackets surface. Refer

to the figure below to see which nodes to select.

7. Without leaving the rigids panel, enter the disp panel in the permanent menuand display off the bracketcomponent collector.

8. Click return to exit the Displaypanel and return to the rigids panel.

9. In the graphics area select the nodes around the corresponding hole in thecradle. Refer to the figure below to see which nodes to select.



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10.Without leaving the rigids panel, enter the disp panel in the permanent menuand display on the bracketcomponent collector.

11.Click return to exit the Displaypanel and return to the rigids panel.

12.Activate all six dofs to constrain the *KINEMATIC COUPLING reference nodein all six directions.

13.Click create.

14.Click return.

The 1D element is created. It is located in the connection component collector.

Organize all *KINEMATIC COUPLING entities into the connectioncomponent

This particular section of the exercise is not necessary to set up a runnableABAQUS input file. It is just for the purpose of organizing the data inHyperMesh.

1. Enter the organize panel in the 1D page.

2. Click the switch and select elems.

3. Click the yellow elems selector and select by config.



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4. Click config = and select rigidlink.

5. Click type = and select *KINCOUP.

6. Click the toggle in the middle of the menu panel to switch to all.

7. Click select entities.

8. Click destination = and select connection.

9. Click move.

10.Click return to exit the organize panel.

Defining the model data is complete.

Section 2: Define the history data

The history data portion of the ABAQUS input file defines the sequence ofevents for the simulation. The loading history is divided into a series of steps.Each step contains the type of simulation, loads, constraints, output requests,and contacts (for ABAQUS Explicit). The ABAQUS *STEP option marks thestart of a step while the *END STEP option marks its end.

For this analysis, we are interested in the linear static response of the cradleand bracket assembly to a 100 kN load applied on the bracket, with the cradlesends fully constrained. This is a single event, so only one ABAQUS *STEP isneeded.

Overview of *STEP in HM

The table below describes how a *STEP definition is created and organized inHyperMesh.



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Table 1.1 ABAQUS *STEP in HyperMesh

Items in *STEPdefinition

HyperMeshconfiguration

Create in Add to

*STEP, *ENDSTEP, analysisprocedure

load step load steps panelin BCs page N/A

boundaryconditions andloads

forces,constraints, etc. inload collectors

various panels inBCs page

load step usingload steps panel

output requests output blocks output blockinBCs page

load step usingload steps panel

contacts (for

ABAQUS Explicit)

groups Contact Manager

inAbaqus macromenu page

load step using

load steps panel

When defining output requests for the ABAUQS ODB file, specifyPOSITION=NODES. The contour of these results in HyperView is similar to

ABAQUS Viewers default display of results for POSITION=INTERGRATIONPOINTS.

Overview of load collectors

The ABAQUS templates have two load collector card images named datashould be collected into load collectors with the HISTORYcard image HISTORYand INITIAL_CONDITION. Loads and boundary conditions used for history andadded to the corresponding *STEP using the load steps panel. In contrast,loads and boundary conditions used for model data should be collected intoload collectors with the INITIAL_CONDITIONcard image. They areautomatically written in the model data portion of the ABAQUS input file.

Exercise 2.1: Create *STEP and specify *STATIC

Using the load steps panel, create a load step and edit it to specify *STATIC forthe analysis procedure.

1. Select the load steps panel in the BCs page.

2. Click name= and enterstep1.



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3. Click create.

4. Click edit.

5. Click [StepHeading]and enter in its data field 100 kN load.

This is the header of the *STEP. It will be used to identify this *STEP in theABAQUS input file and ODB file.

6. In the menu area, activate StepParameters.

7. Activate Name underStepParameters.

This specifies the name of the *STEP in the *STEP line. The name is thename of the load step.

8. Activate Perturbation underStepParameters.

9. In the menu area, slide the scroll bar down to click the switch underAnalysisProcedure and select Static.

The pop-up card image for the step now displays the following:

*STEP, PERTURBATION

100 kN load

*STATIC

*END STEP

10.Click return twice to go back to the main menu.

Exercise 2.2: Create *CLOAD and *BOUNDARY

Create a load collector using the collectors panel. Then create a *CLOAD(concentrated force) on the bracket using the forces panel. Next, create*BOUNDARY (constraints) at the cradles ends by using the constraints panel.Lastly, add the load collector containing the force and constraints to the *STEPdefinition (load step) using the load steps panel.

Create a load collector



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The load and constraints to be created will be organized into this load collector.

1. Enter the collectors panel, create sub-panel.

2. Set the collector type to loadcols.

3. Enter loads_and_constraints in the name field.

4. Click the switch undercreation method: and select card image.

5. Click card image = and select HISTORY.

6. Optionally pick a color for the load collector.

7. Click create.

8. Click return to exit the collectors panel.

Notice in the header message barloads_and_constraints is the current loadcollector. All loads and constraints created from this point forward areautomatically organized into this load collector.

Select *BOUNDARY for the HyperMesh constraint configurationSelect the ABAQUS constraint type *BOUNDARY with no TYPE parameter, i.e.DISPLACEMENT, for the HyperMesh constraint configuration.

1. Enter the load types panel in the BCs page.

2. Click constraint = and select BOUNDARY.

3. Click return to exit the load types panel.

All constraints created from this point are ABAQUS type *BOUNDARY.

Create *BOUNDARY

1. Enter the constraints panel in the BCs page.



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2. Click viewin the permanent menu and then click rightin the pop-up window.

3. Click the yellow nodes selector and select by windowfrom the pop up menu.

4. With the exception of the nodes at the ends of the cradle, draw a circle

around all the displayed nodes to select them.

5. In the menu area, activate exterior. This will select all nodes outside thewindow you drew.

6. Click select entities.

7. Activate all six dofs - dof1, dof2, dof3, dof4, dof5, dof6.

8. Click create.

9. Click return to go back to the main menu.

Select *CLOAD for the HyperMesh force configuration

4. Enter the load types panel in the BCs page.

5. Click force = and select CLOAD.

6. Click return to exit the load types panel.

All forces created from this point forward are ABAQUS type *CLOAD.

Create *CLOAD

1. Enter the forces panel in the BCs page.

2. Select the create sub-panel.

3. In the graphics area, click on a central node on the top side of the bracketsarm. Refer to the figure below to see what node to select.



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4. Enter -100 kN in the magnitude field.

5. Click the switch corresponding to N1, N2, N3 and select z-axis.

6. Click create.

7. Click return to exit the forces panel.

Add *CLOAD and *BOUNDARY to the *STEP

Add the load collectorloads_and_constraints to the load step step1.

1. Enter the load steps panel in the BCs page.

2. Click name = and select step1.

Note: Do this step even ifstep1 is displayed in the name = field.

3. Click the yellow loadcols entity selector and select loads_and_constraints.

4. Click select.

5. Click update.

6. Click editto review the *STEP definition. Notice in the pop-up card image isthe following:



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**Following Load Collectors are within this Load Step

1, loads_and_constraints

7. Click return twice to go to the main menu.

Exercise 2.3: Specify output requests for *STEP

Create an output block and edit it to specify output requests for the *STEP. Thenadd the output block to the load step.

Define the output requests for the *STEP

Create an output block and edit it to specify output requests for the *STEP.

1. Enter the output blockpanel in the BCs page.

2. Enter step1output in the name field.

3. Click create.

4. Click edit.

5. In the menu area, activate NodeFile and then activate UunderNodeFile.

This is done to request displacement results in the ABAQUS FIL file.The following output request lines are added to the pop-up card image:

*NODE FILE

U,

6. Slide the scroll bar down to activate ElFile. Then activate Position and SunderElFile. UnderPosition Options, click the switch and selectAveraged

At Nodes.

This is done to request stress results, in the form of averaged at nodes, inthe ABAQUS FIL file. The following output request lines are added to the

pop-up card image:*EL FILE, POSITION = AVERAGED AT NODES

S,

7. Activate Outputand then activate NodeOutputand ElementOutputunderOutput. Then activate Position underElementOutput.



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8. In the pop-up card image, scroll down to the *OUTPUTline. NoticeField_Historyis set to FIELD. You can click the FIELD button to selectFIELD orHISTORY. Leave the button set to FIELD.

This is done to request field results in the ABAQUS ODB file.

9. In the pop-up card image, scroll down to the *NODE OUTPUTline. EnterU in

the data field below the *NODE OUTPUTline.

10.In the pop-up card image, scroll down to the *ELEMENT OUTPUTline. ClickINTEGRATION POINTSand select NODES.

11.EnterS in the data field below the *ELEMENT OUTPUTline.

This step and the latter four steps are done to request displacement andstress results in the ABAQUS ODB file. The corresponding output requestlines are in the pop-up card image:

*OUTPUT, FIELD

*NODE OUTPUT

U,

*ELEMENT OUTPUT, POSITION = NODES

S,

12.Click return twice to go to the main menu.

Add the output requests to the *STEP

Add the output block to the load step.

1. Enter the load steps panel in the BCs page.

2. Click name = and select step1.

Note: Do this step even ifstep1 is displayed in the name = field.

3. Click the yellow outputblocks selector and select step1 output.

4. Click select.

5. Click update.

6. Click editto view the completed *STEP definition.



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7. Click return twice to return to the main menu.

The models history data is now complete.

Exercise 3: Export model to ABAQUS INP file

1. Enter the files panel in the main menu.

2. Select the exportsub-panel.

3. Make sure the template: field shows the standard.3dfeoutput template.

4. Click write as and enter the name of the ABAQUS input file to be created:

Bracket_Complete.inp.

5. Click Save.

6. Click return.

Submit the INP file to ABAQUS

In Chapter 7, you will post-process the results from the ABAQUS ODB file forthis analysis. Do not worry if you do not have access to ABAQUS to run theanalysis. The set of model files provided for this course includes the ODB filefor this analysis.

Documents

Chapt1 Bracket Rev31