A square copper bar experiences only elastic deformation if it is stressed less than 95MPa. To support a load of 1340kg without exceeding this stress, the minimum square cross-section ( ie width of one side of the square cross section)is
Stress Force / Area Stress 95 MPa 95 N/mm^2 Force 1340 kg * 9.81 m/s^2 Area Side^2 95 N/mm^2 13145 N / Side^2 Side^2 13145 N / 95 N/mm^2 201.5 mm^2 Side Sqrt(201.5mm^2) 14.2 mm side
