Beam with Two Different Moments of Inertia

Example:  Problem 5-5, Text (modified)

(Interface using SuperDraw III)

File

 

 

 

 

 

 

Save As

 

 

 

 

 

 

5-5

 

 

 

Setting

 

 

 

 

 

 

Unit System

 

 

 

 

 

 

Specify Default

 

 

 

 

 

 

English (in)

 

 

Options

 

 

 

 

 

 

Grid Display

 

 

 

 

 

 

Using points

 

 

 

Options

 

 

 

 

 

 

Input Method

 

 

 

 

 

 

Keyboard

 

 

 

Snap

 

 

 

 

 

 

points

 

 

 

 

Add

 

 

 

 

 

 

Line (input coordinates for all the nodes of the beam)

 

 

 

 

File

 

 

 

 

 

 

Save

 

 

 

 

Modify

 

 

 

 

 

 

Clean

 

 

 

 

 

 

Duplicates

 

 

 

FEA Add

 

 

 

 

 

 

Stress and Vibration Analysis

 

 

 

 

 

 

Boundary Conditions (Node at the right end is completely fixed. Middle node is free to rotate around z-axis.)

 

 

 

FEA Add

 

 

 

 

 

 

Stress and Vibration Analysis

 

 

 

 

 

 

Nodal Forces (follow instructions)

(Add two 1000 lb forces)

 

 

 

 

 

 

<Esc>

 

 

 

File

 

 

 

 

 

 

Save

 

 

 

 

Model Data

 

 

 

 

 

 

Element

 

 

 

 

 

 

Type

 

 

 

 

 

 

Beam

 

 

 

 

 

 

<Esc>

 

 

Material

 

 

 

 

 

 

Steel (4130)

 

 

 

 

Data

 

 

 

 

 

 

ALGOR opens a new window (Beam Design Editor)

 

 

 

 

 

 

Inquire

 

 

 

 

 

 

Beam

 

 

 

 

 

 

Click on any beam. All beams have the node k as node 8.

 

 

 

 

 

Node

 

 

 

 

 

 

Find

<8>

Note 8 is at infinity in the positive Y-direction.

This means that ijk plane is the x-y plane. 2-axis is the y-axis. 3-axis is the z-axis.

 

 

 

 

 

 

 

 

 

Add/Mod

 

 

 

 

 

 

Sectional

 

 

 

 

 

Value

 

 

 

 

 

 

I2=100

I3=15

S2=5

S3=1

 

 

 

 

 

<Esc>

 

 

Files

 

 

 

 

 

 

Save

 

 

 

 

 

<Esc>

 

 

 

 

Done

 

 

 

 

 

Global

 

 

 

 

 

 

Load Case

 

 

 

 

 

 

1

 

 

 

 

Output

 

 

 

 

 

 

Element Data

Nodal Data

Displacement Data

Stress Data

 

 

 

Analysis

 

 

 

 

 

 

Analyze

 

 

 

 

Results (Superview)

 

 

 

 

 

Results

 

 

 

 

 

 

Beam and Truss Results

 

 

 

 

 

 

M2/S2

 

 

 

 

 

 

<Esc>

 

 

 

 

 

M3/S3

 

 

 

 

 

 

<Esc>

 

 

Results

 

 

 

 

 

 

Displacement Data

 

 

 

 

 

 

 Displaced Model On

 

 

 

 

 

 Undisplaced Model On

 

 

 

 

 

Calculate Scale

 

 

 

 

 

Node Inquire

 

 

 

 

 

 

Get Node

 

 

 

 

 

Click on the tip node