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Designer  Materials
Designer  Materials
Designer  Materials
Designer  Materials
Designer  Materials
Designer  Materials
Designer  Materials
Designer  Materials
Designer  Materials
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Designer Materials

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  • 1. Designer Materials Why do we make things out of the materials that we do..? May 29, 2009
  • 2. Which to Use..? <ul><li>In pairs, list the factors that you think are important when choosing a material to make: </li></ul><ul><ul><li>Designer Sunglasses </li></ul></ul><ul><ul><li>A bridge over the River Trent </li></ul></ul><ul><ul><li>A Cornflakes Box </li></ul></ul><ul><ul><li>A disposable camera </li></ul></ul><ul><ul><li>A bicycle - what are the two </li></ul></ul><ul><ul><li>extremes? </li></ul></ul>
  • 3. Material Considerations <ul><ul><li>Designer Sunglasses </li></ul></ul><ul><ul><li>A bridge over the River Trent </li></ul></ul><ul><ul><li>A Cornflakes Box </li></ul></ul><ul><ul><li>A disposable camera </li></ul></ul><ul><ul><li>A bicycle - what are the two </li></ul></ul><ul><ul><li>extremes? </li></ul></ul><ul><ul><li>Designer Sunglasses </li></ul></ul><ul><ul><li>A bridge over the River Trent </li></ul></ul><ul><ul><li>A Cornflakes Box </li></ul></ul><ul><ul><li>A disposable camera </li></ul></ul><ul><ul><li>A bicycle - what are the two </li></ul></ul><ul><ul><li>extremes? </li></ul></ul>
  • 4. Characteristics of Materials <ul><li>The following are considered when choosing a material… </li></ul><ul><li>Mechanical Properties - e.g. Is something STIFF or FLEXIBLE, TOUGH or BRITTLE, ELASTIC or PLASTIC, HARD or SOFT, LIGHT or HEAVY? </li></ul><ul><li>Optical Properties - OPAQUE, TRANSPARENT or TRANSLUCENT? </li></ul><ul><li>Aesthetics and Cost - Does it look nice and or is it cheap? </li></ul>
  • 5. Characteristics of Materials <ul><li>Looking at the samples around the room; </li></ul><ul><li>Decide on which characteristics match which description </li></ul><ul><li>Try to categorise the various materials under common characteristics - what do you notice? </li></ul>
  • 6. Characteristics of Materials <ul><li>Looking at the samples around the room; </li></ul><ul><li>Decide on which characteristics match which description </li></ul><ul><li>Try to categorise the various materials under common characteristics - what do you notice? </li></ul><ul><li>IT IS DIFFICULT TO CLASSIFY MATERIALS INTO GROUPS AS CHARACTERISTIC COMBINATIONS ARE DIFFERENT!!! </li></ul>
  • 7. Does structure make a difference? <ul><li>Your challenge is to make a bridge that spans a 30cm gap </li></ul><ul><li>The best design will be the bridge that has the highest load to mass ratio. </li></ul><ul><li>All you can use is paper..! </li></ul>
  • 8. Classifying Materials <ul><li>There are several classes of material - you need to know about… </li></ul><ul><li>Ceramics </li></ul><ul><li>Metals </li></ul><ul><li>Polymers </li></ul><ul><li>Composites </li></ul>Using pages 77 to 82, research these classes of material. Write down: Some examples Key characteristics of the class or material
  • 9. Private Study Choose a product of your choice and draw a picture of it. Write a short explanation about the various materials used, the characteristics of the materials and how they ensure that the product serves its purpose.

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