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Step 1: Pre-Analysis & Start-Up
Open ANSYS Workbench
Click on the Start button, then click on All Programs. Depending on where you are attempting to access ANSYS, it may be under ANSYS 12.0, ANSYS 12.1 or Class. Once you locate ANSYS click on the the workbench button, Image Removed. It may take some time for ANSYS to open. Once ANSYS opens your computer monitor should look comparable to the image below.
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The problem at hand is a static structural problem, so click and hold down the mouse button on the Static Structural (ANSYS) button, Image Removed, and drag it over to the project schematic window. When you begin to drag the Static Structural (ANSYS) button over to the Project Schematic window a green dashed box should appear as seen in the image below.
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Drag the Static Structural (ANSYS) button into the green box until it turns red and has the text "Create standalone system" within it, then release the mouse button.
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Change the name of the project to Cantilever and your workbench window should look similar to the image below.
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Engineering Data
The specific properties of the material Cornellian needs to be inputted into ANSYS. Start by right clicking on Engineering Data and then clicking on "Edit.." as seen below.
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At this point a new window will open. Under "Outline of Schematic A2: Engineering Data" there will be a box with text inside that says "Click here to add a new material". Click on that box and type in "Cornellian" and then press enter.
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Now, expand the "Linear Elastic" tab on the right and double click on "Isotropic Elasticity".
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Go to Step 2: Geometry
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Pre-Analysis
Handout
Powerpoint slides used in the following videos can be downloaded here.
What's Under the ANSYS Blackbox?
To understand the framework of what's under the ANSYS blackbox, go through the videos in the “What’s Under the Blackbox” section of our free online course on ANSYS-based simulations. Registration is required to access this course. We'll be using this framework in this tutorial.
Mathematical Model
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<iframe width="560" height="315" src="https://www.youtube.com/embed/Aa76qYImVs4" frameborder="0" allowfullscreen></iframe> |
Euler-Bernoulli Beam Theory
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<iframe width="560" height="315" src="https://www.youtube.com/embed/eC1zYa2e0AY" frameborder="0" allowfullscreen></iframe> |
Strains and Stresses
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<iframe width="560" height="315" src="https://www.youtube.com/embed/UKiiMJaOrNE" frameborder="0" allowfullscreen></iframe> |
Potential Energy
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<iframe width="560" height="315" src="https://www.youtube.com/embed/AYRlTxAS-rc" frameborder="0" allowfullscreen></iframe> |
Potential Energy Minimization
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<iframe width="560" height="315" src="https://www.youtube.com/embed/l8nwmlwlDMs" frameborder="0" allowfullscreen></iframe> |
Discretization
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<iframe width="560" height="315" src="https://www.youtube.com/embed/Qo5H1XO_usU" frameborder="0" allowfullscreen></iframe> |
Interpolation
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<iframe width="560" height="315" src="https://www.youtube.com/embed/LnmIbYw3aC0" frameborder="0" allowfullscreen></iframe> |
Algebraic Equations Derivation
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<iframe width="560" height="315" src="https://www.youtube.com/embed/bEZIQv51ccQ" frameborder="0" allowfullscreen></iframe> |
Hand Calculations
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<iframe width="560" height="315" src="https://www.youtube.com/embed/1p3KrBhuLCw" frameborder="0" allowfullscreen></iframe> |
Check Your Understanding
One or more of the following statements is/are true. Select which statements are true.
- 3D Elasticity theory makes the assumption that plane sections remain plane whereas the Euler-Bernoulli beam theory doesn’t make this assumption.
- In Euler-Bernoulli beam theory, the Poisson's ratio is assumed to be zero.
- If we have 4 nodes instead of 3, ANSYS will need to determine 8 parameters (4 y-displacements and 4 rotations) either from the essential boundary conditions or by solving a set of algebraic equations.
- If we have 4 nodes instead of 3, the number of algebraic equations that ANSYS will need to solve simultaneously will be 5.
- We have to determine the y-displacement of the midline at locations between the nodes using interpolation. This interpolation is given by a second-order polynomial.
Go to Step 2: Geometry
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