# MATLAB Introductory Learning Module

Created using MATLAB R2013a

## Problem Specification

Consider the beam shown in the figure below. Using MATLAB,

a) Find the reactions R_{A}, R_{B}

b) Find the bending stress σ_{x} at point O

c) Plot the variation of σ_{x} at point O as the inner radius of the tube is varied in the range 0.5 cm < r_{i} < 1.5 cm

#### Solution Steps

The MATLAB solution is divided into the following steps:

- Step 1: Find Reactions R
_{A}, R_{B}
- Step 2: Find σ
_{x} for r_{i} = 1 cm
- Step 3: Plot σ
_{x} vs. r_{i}
- Step 4: Plot σ
_{x} vs. r_{i}: Take 2
- Step 5: Plot σ
_{x} vs. r_{i}: Take 3
- Step 6: Plot σ
_{x} vs. r_{i}: Take 4

#### Conventions Used

In this tutorial, items and options appearing within the MATLAB graphical user interface are denoted in *purple, italic, and bold*.

Text and numbers that need to be entered are indicated in `monospace font`

.

Let's dive into step 1 without further ado.

**Go to Step 1: Find Reactions R**_{A}**, R**_{B}

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