a) Consider a thin sheet made from steel loaded in tension with a hole through it as indicated in the figure below. Determine the stress concentration factor, K, as a function of d/w. b) How sensitive is your result to i) to mesh density? ii) to Poisson's ratio? P W d

M13.6 Principal stresses from rosette data scenes -200 µE 23 Eb = 200 με Ec 500 µE 30° 30° Ex (LE) a Ey (µE) Yxy (Lurad) The strain rosette shown was used to obtain normal strain data at a point on the free surface of a steel (E = 200 GPa; v = 0.32) plate. Op1 (MPa) Determine the normal strains, the shear strain, and the principal stresses in the x-y plane. Op2 (MPa) Try One 1st 2nd 3rd attempt enter

The structure consists of two bars. Axial loads 40 kN and 10 kN are loaded as shown in Figure B. Determine: a) Global stiffness matrix b) Nodal displacement c) Stress in each bar Table 2 Steel Aluminium Brass Area 400 350 350 (mm³) E(Gpa) 200 70 83 Aluminum Brass Steel 40 kN - 10 kN L 500 mm 400 mm 300 mm

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