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3D Finite-Element Analysis of a Bike Crank

Created using ANSYS (Version Number)AIM 17.1

Learning Goals

In this tutorial, you will learn to:

• (e.g.:

  Determine the displacements and stresses in a bike crank using 3D FEA capabilities in ANSYS

  Mechanical)

  AIM

• (e.g.:

  Verify the finite-element results from ANSYS AIM by refining the mesh and also comparing with hand calculations

  )

Problem Specification

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Problem Specification

Consider the following bike crank model. 

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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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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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Using ANSYS AIM, determine the following:

• Deformed shape and displacement field

• Stress distribution

Go to Step 1: Pre-Analysis & Start-Up

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