Unit 4.1: Statics

Objectives

• In Lesson 4.1, students explore various aspects of static structures and apply mathematical approaches to solve structural problems. They begin the lesson by applying an engineering design process to design and test a cantilever beam. Students then compare materials and their properties that impact beam deflection; they also use 3-D modeling software to analyze and investigate factors that impact beam deflection and solve an engineering design problem. Students analyze and solve systems through the use of free body diagrams, force vectors, moment calculations, and method of joints. They will also explore internal forces in materials and the relationship between stress and strain. Students culminate their understanding to design their own bridge truss to support a given load at the lowest cost.

Classroom Activities

1. Prayer
2. Continue Truss Project (Day 3)
   1. Strength – Awarded to the students whose bridge is able to support the most load to weight ratio prior to failure. The bridges will be graded on a scale from the highest weight to the lowest.
   2. Technical Report & Drawings -Technical report (including engineering notebook) describing the design and construction phases of their bridge. All Engineering Design Process steps need to be easily identified. Make sure you have an entry for every day!
   3. Presentation – Awarded to the students that presents their bridge in the most creative and professional manner. Includes a bridge name and sign posted on the bridge and an oral Power Point presentation.
   • Workmanship & Artistry – Awarded to the students whose bridge appears to the judges to be the most professional looking and shows a high level of craftsmanship and beauty.
   • See Presentation

Homework

• None