Course in ANSYS

Example0120

Computational Mechanics, AAU, EsbjergANSYS

Example0120 2Computational Mechanics, AAU, EsbjergANSYS

Example – Cantilever beam

E = 210000N/mm2

n = 0.3L = 5000mma = 250mmb = 450mmc = 10mmd = 20mme = 15mmf = 350mmF = 100N

Objective:Compute the maximum deflection Tasks:Create a table and compare results with results obtained from beam theory?Display the deflection figure?Topics:Topics: Start of analysis, Element type, Real constants, Material, modeling, element size for beam models, saving/restoring

Example - titleUtility Menu > File > Change Jobname/jobname, Example0120 Command line entry

GUI

Enter: Example0120

Utility Menu > File > Change Title/title, Cantilever beam

Enter: Cantilever beam

Example0120 3Computational Mechanics, AAU, EsbjergANSYS

Example - KeypointsPreprocessor > Modeling > Create > Keypoints > In Active CS/PREP7K,,,,K,,5000,,K,,,50,

General format:K,#,X,Y,Z

# Keypoint numberX Keypoint x-coordinateY Keypoint y-coordinateZ Keypoint z-coordinate

Note: An empty #result in automaticnumbering.

Example0120 4Computational Mechanics, AAU, EsbjergANSYS

Note: An empty boxresult in a zero. It isallowed to enter 0.0in each box.

Enter 0,0,0 andPress ApplyEnter 5000,0,0 andPress ApplyEnter 0,50,0 andPress Apply

Example - NumberingSwitch on Keypoint numbersUtility Menu > PlotCtrls > Numbering

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Press OK

Example - LinesPreprocessor > Modeling > Create > Lines > Lines > Straight LineCreate a line between Keypoint 1 and Keypoint 2.L,1,2

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HINT: By clicking with the right-hand mouse button you shift between the Pick/Unpick function. This is indicated by the direction of the cursor arrow:

Pick: upward arrow

Unpick: downward arrow

Press OK or Cancelto finish selection

Example – Element TypePreprocessor > Element Type > Add/Edit/Delete

Press Add

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Example - Element TypePreprocessor > Element Type > Add/Edit/Delete

Press Options

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Example - Element TypePreprocessor > Element Type > Add/Edit/Delete

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Press Help to learn more about theelement.

Example - Material PropertiesPreprocessor > Material Props > Material Models

Double Clickto step in thematerial tree

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Example - Material PropertiesPreprocessor > Material Props > Material Models

Enter:Modulus of elasticity

Enter:Poisson’s ratio

Click hereto Close

Press OK

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Example - SectionEnter i253

Select the I profile

Follow the guidelines at Enter the appropiatecross-sectional data

Press OK to finish

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Example – Line AttributesPreprocessor > Meshing > Mesh Attributes > Picked Lines

Select section I253

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Press OK to finish

Change to Yes

Select KP3

Example - MeshingPreprocessor > Meshing > Size Cntrls > ManualSize > Lines > Picked Lines

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Select/PickLines tospecifymesh sizefor

Press OK when finish with selection Enter 5

Example - MeshingPreprocessor > Meshing > Mesh > Lines

Select individual lines to be meshed by Picking

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Select all lines defined to be meshed

NB: It is often necessary to “Clear” the model forexample if Element Type is to be changed

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Example - PlotCtrls Menu

Change to On

Example – Display of Element

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Example – Analysis Type

Solution > Analysis Type > New Analysis

File > Write DB log fileEnter “example0120.lgw”

Press OK

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Example – Define LoadsSolution > Define Loads > Apply > Structural > Displacement > On Keypoints

Select keypoint 1

Select All DOF to fix/clamp the beam

Press OK

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Example – Define LoadsSolution > Define Loads > Apply > Structural > Force/Moment > On Keypoints

Select keypoint 2

Change to FY

Press OK to finish Enter -100

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Example - Save

Display of Analysis model

Save the model

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Example - SolveSolution > Solve > Current LS

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Press OK

Example - PostProcessingGeneral Postproc > Plot Results > Deformed Shape

Select “Def+undeformed”and Press OK

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Example - PostProcessing

Read Maximum displacement: DMX

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