# 3D Finite-Element Analysis of a Bike Crank

Created using ANSYS AIM 17.1

## Learning Goals

In this tutorial, you will learn to:

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

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

## Problem Specification

Consider the following bike crank model. To orient ourselves, the following figure shows the location of a similar bike crank mounted on a bicycle. 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. Using ANSYS AIM, determine the following:

• Deformed shape and displacement field

• Stress distribution

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