Wednesday July 14

Tension and Compression

Video Links (9:30 AM - 10:15 AM)

Playlist Table of Contents

Axial Tension [13:15]

Axial Compression [10:12]

Axial Failure Mechanisms [7:04]

Buckling [9:14]

Axial Tension Examples [12:50]

Axial Compression Examples [14:35]

2021-07-14 Live Session_ Tension and Compression.pdf

Rest your eyes! Take a break from the computer 10:15 AM - 10:30 AM.

Log back onto the Zoom Homeroom at 10:30 AM.

Activity Instructions (1:00 PM - 1:45 PM)

Don't forget to eat and stay hydrated! Take a lunch break from the computer 12:00 PM - 1:00 PM.

Log back onto the Zoom Homeroom at 1:00 PM for the Topic of the Day Activity.

Introduction

Understanding how a material behaves under load is an important aspect in the design of structures. Engineers need to understand material properties and how they affect a material's ability to transfer loads. This allows engineers to wisely choose the appropriate material for building a structure as some materials are optimal in only tension or only compression. However, most materials can experience both tension and compression simultaneously. You will see how creative engineering can lead to utilizing certain materials and creating structures that transfer loads in unique ways. These types of structures are usually very intriguing as well as providing architects with an abundance of creative ideas that are structurally safe.

The term compression refers to the force that is squishing or compressing a material. Tension is the force that is acting to stretch a material. Ropes are an example of a material that can only carry things in tension due to having no rigidity. Engineers often incorporate tension when designing their structures. Sometimes engineers can even design structures that rely primarily on tension or compression. Depending on the design, engineers can create tensegrity structures. Now we can try to incorporate these ideas and create our own tensegrity table.

Learning Outcomes:

In this activity you will

  • Use hands on skills to construct a small structure

  • Work with the concept of Tension

  • See tension in real life


You will need:

Cori Kit

Materials list:

  • 7 Cori cardboard Sheets *TRY NOT TO WASTE YOUR MATERIAL*

  • 4 Cori Eyelets

  • 2 Cori Cleats

  • Orange String

  • Hot Glue Gun

  • 2-3 Glue sticks

  • Scissors

Today is building only so don't worry about discussing this topic just yet!

Try to look up some real world examples for tomorrow's discussion.