Acylindrical specimen of aluminum (al) having a diameter of 19 mm and length of 200 mm is deformed elastically in tension with a force of 48,800 n. given the young’s modulus of 69 gpa and the poisson’s ratio of 0.33 for al, determine the following: (a) the amount by which this specimen will elongate in the direction of the applied stress. (b) the change in diameter of the specimen. will the diameter increase or decrease data for aluminum from table 6.1:

modulus of elasticity 69 gpa or 10 106psi

shear modulus 25 gpa or 3.6 106psi

poisson ratio 0.33