Beer & Johnson - Ansys Workbench

ANSYS Workshop 2 Structural Analysis

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Agenda

• Learning Objectives: – Engineering Data

• Creating new material

– Analysis • Using the Fixed boundary condition

• Applying the Displacement boundary condition

• Extracting result using Probe (Force Reaction)

• Extracting result for Normal Stress

– Transferring Data • Create and restore an archive (not shown in presentation

slides)

Workbench Environment

ANSYS Workbench Environment window

Selecting Analysis System

Double click Static Structural

Engineering Data

1. Rename the template to remind yourself about the analysis

2. Double click Engineering Data Cell

Changing Data

1. Click Structural Steel

2. Select Poisson Ratio value and make it zero, as this is not required in the problem

Adding A New Material

Click the empty cell below Structural Steel to add a new material

Type in Brass as it is the second material required in the problem

Adding Properties

Double click Density from Physical Properties

Adding Properties

Double click Isotropic Elasticity from Linear Elastic

Returning Back To Project

1. Type in the values of Density, Young’s Modulus and 0 for Poisson’s Ratio Make sure the unit is changed to psi before entering the Young’s Modulus

2. Click this icon to return to the main window

Importing Geometry

Right click Geometry Cell and select Browse

Importing Geometry

Select the Design file shown

Importing Geometry

GUI of Design Modeler

This slide just to give you a look at the GUI of the Design Modeler that is used to create models in ANSYS

Saving The Project

Now is a good time to save the project

Entering Mechanical Environment

Right click the Model Cell and select Edit Or Double click the Model Cell

Assigning Property To Model

Click Geometry in the Tree Outline

Assigning Property To Model

Click Brass

Assigning Property To Model

And in the Details Window, change the material assignment to Brass

Adding Fixed Support B.C.

Right Click Static Structural and select Fixed Support

Adding Fixed Support B.C.

Hover your mouse at the triad and move it along Z-axis until you see a direction vector pointing towards the negative z axis. Click the vector

Adding Fixed Support B.C.

1. Click the face selection filter

2. Select the two faces (using the Ctrl key) These would form the fixed base of the model

3. Click Apply in the Details Window

Adding Fixed Support B.C.

Adding Displacement B.C.

1. Right click Static Structural and select Displacement

2. Click the Z axis vector

Adding Displacement B.C.

1. Click face selection filter

2. Select the two faces shown (using Ctrl key)

3. Click Apply

4. Along the Z component, enter the value of -6e-3 in

Adding Displacement B.C.

Click the blue dot to return to isometric view

Adding Displacement B.C.

Adding A Probe For Result

Right click Solution and select Force Reaction

Adding A Probe For Result

Select the Fixed Support boundary condition

Adding Normal Stress Evaluation

Right click Solution and select Normal Stress

Adding Normal Stress Evaluation

Right click Normal Stress and select Rename to change it to Steel core This is to help us identify the location of stress

Adding Normal Stress Evaluation

Adding Normal Stress Evaluation

1. Click the body selection filter icon

2. Click Geometry cell

3. Select the central body

4. Click Apply

Adding Normal Stress Evaluation

Adding Normal Stress Evaluation

Select Orientation and change it to Z axis

Adding Normal Stress Evaluation

Solving

Right click Solution in the Tree outline and then click Solve

References

• ANSYS Workbench Verification Manual

• ANSYS Mechanical Help

• ANSYS Workbench Documentation

• Problem taken from

– Mechanics Of Materials (In SI Units)

by Beer, Johnston & Dewolf 4th Edition

Online Resources

• Following links are a good source for practice

– http://www.ansys.com/Resource+Library

– http://www.mece.ualberta.ca/tutorials/ansys/

– https://confluence.cornell.edu/display/SIMULATION/ANSYS+Learning+Modules

– http://www.caeai.com/fea-webinars.php

– http://www.sdcpublications.com/Textbooks/ANSYS-Workbench-Tutorial-Release-13/ISBN/978-1-58503-671-4/

Assignment

Practice_1 problem 2.35