Describing Structures Topic 2

Describing Structures Topic 2

1. FUNCTION

   • Definition: it's main use to us humans
   • An important function for structures that holds objects is for it to be able to hold itself
   • In order to function properly it must follow specifications, of the standards it must meet

2. AESTHETICS

   • Definition: the study of art and beauty in art and nature
   • Choice of material and methods have a huge impact on aesthetics

3. SAFETY

   • Every structure must be designed with a margin of safety: allows it to with stand a much larger load ex elevators, bridges, and roofs

4. COST

   • Most times it's hard to balance safety with cost,
     • Bigger stronger parts use more material, making it more expensive
     • must stand conditions they think might occur

5. MATERIALS

   • materials must match properties for purpose of structure
     • Woven or Knit: yarn, paper, felt, and plastic wrap are some examples
   • Composite: made up of several different materials
   • Layered materials: Different materials being layered this is called laminations

6. CHOOSING MATERIALS

   • Designers must consider cost, appearance, environmental impact, and energy efficiency (check notes)

7. JOINTS

   • structures are often weakest where there parts join
   • mobile joints: joints that allow movement door hinges and elbows
   • Joints hold many parts together they fit into fastners, ties, interlocking shapes, adhesive, melted joints