Bike comes in many forms each aimed at a particular sector

Question

1. Bike comes in many forms, each aimed at a particular sector of the market such as

a. Sprint bikes

b. Mountain bikes

c. Children's bikes.

Use your judgement to identify the primary objective and the constraints that must be met for each of these

2. Use the modulus-density chart to find:

(a) the material with the highest density

(b) the metal with the lowest modulus

(c) the polymer with the highest density

(d) the approximate ratio of the modulus of woods measured parallel to the grain and perpendicular to the grain

(e) the approximate range of modulus of elastomers

3. Use the modulus-relative cost chart to find:

(a) the cheapest material with a modulus greater than 1 GPa

(b) the cheapest metal

(c) the cheapest polymer

(d) whether magnesium alloys are more or less expensive than aluminum alloys

(e) whether PEEK (a high performance engineering polymer) is more or less expensive than PTFE

4. Use the yield strength-density chart or the yield strength-modulus chart to find:

(a) the metal with the lowest strength

(b) the approximate range of strength of the composite GFRP

(c) whether there are any polymers that are stronger than wood measured parallel to the grain

(d) how the strength of GFRP compares with that of wood

(e) whether elastomers, that have moduli that are far lower than polymers, are also far lower in strength.

Answer 1

Respond to the following problem discussion by selecting the most accurate oprtion. Q1. Bike comes in numerous forms, each aimed at a specific sector of the market like: a) Children's bikes b) Mountain bikes c) Sprint bikes d) Make use of your judgment to recognize the main objective and constraints that should be met for each. Q2. Make use of the modulus-density chart to determine: a) Material with highest density b) Metal with lowest modulus c) Polymer with highest density d) Approximate ratio of modulus of woods measured parallel to the grain and perpendicular to grain. e) Approximate range of modulus of elastomer Q3. Make use of modulus-relative cost chart to determine: a) Cheapest material by modulus more than 1 GPa b) Cheapest metal c) Cheapest polymer d) Whether magnesium alloys are less or more expensive as aluminum alloys e) Whether PEEK is less or more expensive than PTFE