Question: A 3 m - long structural member with a square cross section will be constructed either by using Material A or Material B . The

A 3 m -long structural member with a square cross section will be constructed either by using Material A or Material B. The properties of the materials are given in the following table.
\table[[,Material A,Material B],[Elasticity Modulus,72 GPa,21 GPa],[Ultimate Strength,112 MPa,84 MPa],[Yield Strength,70 MPa,-],[Strain at fracture,35%,0.2%
A 3 m - long structural member with a square

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