Question

Based on stiffness criteria, the material cost can be optimized by reducing the.

Vc/E1/3

 

E1/3/Vc

 

E/Vc

 

σ1/3limit/Vc​

Answer 1

The correct option is (ii).

Explanation:

• The material cost can be enhanced by reducing the E1/3/Vc based on the stiffness criteria.

• By decreasing the weight per unit volume in any composition the cost of the material is reduced automatically.

• The selection criteria for the highest thickness and strength are E1/3/Vc is we want to lower the cost.

• So the Vc is per unit volume and is equal to = density x cost per unit weight.

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Based on stiffness criteria, the material cost can be optimized by reducing the.

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