Week 1 Stress Concentration on a Plate with hole

Plate 1

Von Mises Stress

Von Mises Strain

Plate 2:

Equivalent Strain

Equivalent stress

a) Plate 2 has less stress and less strain. Very very small difference.

b) Two small holes releases the stress concentration in the middle. Plate 2

c) Plate 1 would still be fine so less manufacturing steps. Plate 1