{include: Crank - Panel}

h1. 3D Finite-Element Analysis of a Bike Crank

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h2. Learning Goals

In this tutorial, you will learn to:
* Determine the displacements and stresses in a bike crank using 3D FEA capabilities in ANSYS Mechanical
* Verify the finite-element results from ANSYS by refining the mesh and also comparing with hand calculations 

h2. Problem Specification

Consider the following bike crank model. 
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\\ [!crank_geo.png|width=400!|^crank_geo.png]\\
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To orient ourselves, the following figure shows the location of a similar bike crank mounted on a bicycle.
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\\ [!crank_on_bike.png|width=400!|^crank_on_bike.png]\\
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*Material properties*: The bicycle crank's material is aluminum 6061-t6. The Young's modulus is 10,000 ksi, and the Poisson's Ratio is .33. 

*Boundary conditions*: Apply a load of 100 lbf in the y-direction on the right hole surface and fix the 3 left hole surfaces as shown below. Note that this is an approximation of the actual loads and constraints on the bike crank.
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\\ [!crank_bcs.png|width=400!|^crank_bcs.png]\\
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Using ANSYS Mechanical, determine the following:
* Deformed shape
* Displacement field
* Stress distribution 
{latex}$\sigma_x(x,y,z)${latex}

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[*Go to Step 1: Pre-Analysis & Start-Up*|Crank - Pre-analysis & Start-Up]

[Go to all ANSYS Learning Modules|ANSYS Learning Modules]\\
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