Q 3\A rectangular bar is cut from an AISI 1018 cold-drawn steel flat. The bar is 60 mm wide by 10 mm thick and has a 12-mm hole drilled through the center, k,-0.899, k=0.85. Su-440MPA, Sy-370Mpa, K-2.5, q-0.82, The bar is concentrically loaded in push-pull fatigue by axial forces Fa, uniformly distributed across the width. Using a design factor of nf = ny = 1.8, estimate the largest force Fa that can be applied ignoring column action. 10 - F 12 60 1018

12. An aluminum sleeve is held between the head and the nut of a steel bolt. The temperature is raised 40°F from 60°F after the nut is turned 45° against the sleeve from loose contact therewith. Calculate the stresses in the sleeve and the bolt. BOLT IS 1/2" DIA, 16 THREADS/ IN. E(ALUM.) 10 x 106 psi E (STEEL)= 30×106 psi Coefficient of linear expansion STEEL: 6.5 x 10-6 °/°F ALUM: 12 x 10-6/F

01: A hollow steel tube (1) with an outside diameter of 2.75 in. and a wall thickness of 0.25 in, is fastened to a solid aluminum rod (2) that has a 2 in. diameter and a solid aluminum rod (3) that has a 1.375 in. diameter (E -30,000 ksi, E-10,000 ksil. The bar is loaded as shown in figure below, Determine: (1) the displacement of point D with respect to the fixed support at A. (2) the maximum normal stress in the entire axial assembly. (3) the normal strain in the steel tube (1). 34 kips 18 kips 25 kips 18 kips 34 kips 60 in. 40 in. 30 in.

1) The cantilever bracket is bolted to a column with three M12 x 1.75 ISO 5.8 bolts. The bracket is made from AISI 1020 hot-rolled steel. Holes for M12 X 1.75 bolts 8 mm thick Find the factors of safety for the following failure modes: shear of 36 | 12 kN bolts, bearing of bolts, bearing of bracket, and bending of bracket. 32 64 Solution: 36 200 Columm

Solve please

The round cross-sectional bar is cut from an AISI 1020 colddrawn steel with a diameter of 25 mm. The bar is loaded at its end with a completely reversed load Fmin = 5 kN, Fmax = -3 kN. Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodman criteria? What length must be used if a more conservative criteria is used?

An AISI 1035 CD steel tube has an OD = 45 mm and a wall thickness of 5 mm. What maximum external pressure can this tube withstand if the largest principal normal stress is not to exceed 80 % of the minimum yield strength of the material? Assume ?? = 0.