Consider a rod transmitting a tensile force. The following materials are being considered: tungsten carbide, zinc alloy, polycarbonate polymer, and aluminum alloy. Using the Ashby charts, recommend the best material for a design situation in which failure is by exceeding the strength of the material, and it is desired to minimize the weight.

The criteria are to limit the weight with extensive quality so we have to locate the particular quality or proportion of solidarity to thickness of every material. The material having most elevated explicit quality will be picked as a structure material. Following are inexact and normal information for every material:

FOR TUNGSTEN CARBIDE FROM DIAGRAM

Strength = 350MPa

Density = 1.560g/cm^3

Specific strength = 350/15.6=22.43

FOR ZINC ALOY

Strength = 250MPa

Density = 6.6g/cm^3

Specific strength = 250/6.6 =37.87

FOR POLY-CARBONATE POLYMER

Strength = 70MPa

Density = 1.2g/cm^3

Specific strength = 70/1.2=58.33

FOR ALUMINIUM ALLOY

Strength = 600MPa

Density = 2.7g/cm^3

Specific strength = 600/2.7 = 222.22

From above examination we see that aluminum compounds has most noteworthy explicit quality so they are perfect for light weight and quality plans.

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