engineering Flashcards
Engineering Design Process Steps
1) Ask
2) Remember
3) Sketch your ideas
4) Build it, test it, redesign it
5) Share your idea
(Ants Really Soothingly Bike Strongly)
Ask Step
- what’s the goal of the activity?
- are there constraints you have to work with?
- does a design already exist that I can try to improve on?
Remember Step
- examine materials and sketch ideas
- write down all ideas, no matter how wild (the more ideas the better!)
- be creative and spontaneous (there are no wrong answers and lots of possible solutions)
- work as a team and respect every idea ; everyone should participate!
Sketch Your Ideas Step: what is it for?
- to refine your ideas; how will this look on paper?
- to work out proportions and measurements (is this a realistic plan?)
- to decide how materials will be used; do you have enough time and materials to build this design?
Build it, Test it, Redesign it Step
- build our design
- test it out (does it meet the goal of the challenge?)
- evaluate it (think about what makes it work and what could make it better)
- redesign it (make improvements based on your testing results and evaluation)
Share your idea Step
-present your final design to the group
Loads
Forces that act on a structure
Dead load
The weight of the structure itself; anything permanently attached to the building
Live load
The weight of the stuff in the structure; things that move in or on a structure (ex: people)
Earthquake load
The movement of the ground beneath the structure; places additional load on the support structures of a building
Stress
The amount of force on a given object
Tension (kind of stress)
Pulling and stretching material apart (material tends to get longer)
Compression (kind of stress)
Squeezing material together (material tends to get shorter)
Tensile strength formula
T = W•L2 /L1
Compressive strength formula
C = W•L2 /L1
