A 10-mm-thick, low-alloy-steel plate 180 mm wide and 2000 mm long is subjected to a set of uniformly distributed frictional forces along its two edges, as shown in the figure. If the total decrease in the transverse 180-mm dimension at section a--a due to the applied forces is 16 x 10 mm, what is the total elongation of the bar in the longitudinal direction? Let E= 200 GPa and v= 0.25. Assume that the steel behaves as a linearly elastic material

Q.2 Three bars each made of different materials are Steel Copper Ecu- 120 GPa ag = 12(10-)/C a = 21(10-")/"C a = 17(10-)C Acu = 515 mm? Brass connected together and placed between two E= 200 GPa E= 100 GPa walls when the temperature is T1 = 12°C. %3D Detemine the force exerted on the rigid A = 200 mm? Ape- 450 mm supports when the temperature becomes T2 %3D 18°C. The material properties and cross- 300 mm 200 mm 100 mm sectional area of each bar are given in the figure. (Marks = 10, CLO 3)

IADC classification (4-1-4-T) refers to what kind of a bit? IADC classification (D-7-1- 4) refers to what kind of a bit?

The bar has a constant cross section.....

Photos 4 Crop & rotate Filters * Adjustments 2 Undo all Redo all Crop & rotate Straightening 0 ° Two round bars are joined and used as a tension member as illustrated. The modulus of elasticity is 200 GPa for steel and 70 GPa for aluminum. Rotate D4 Flip O Aspect ratio : Custom Aluminum 100 mm diameter Reset bar 50 mm diaineter P Steel bar +280 mm 400 mm Determine the magnitude of the force P (in kN) that willI lengthen the two bars 0.45 mm. * Your answer Save a copy Cancel 6:50 PM O Type here to search 日 28°C Partly cloudy 4)) ENG 23/09/2021

1.8-4 Lateral bracing for an elevated pedestrian walkway is shown in the figure part (a). The thickness of the clevis plate 1. = 16 mm and the thickness of the gusset plate t = 20 mm [see figure part (b)]. The maximum force in the diagonal bracing is expected to be F = 190 kN. If the allowable shear stress in the pin is 90 MPa and the allowable bearing stress between the pin and both the clevis and gusset plates is 150 MPa, what is the minimum required diameter dmin of the pin? Pin Diagonal brace (a) (© Barry Goodno)

JU 4.7 and 4.8 Two W4 × 13 rolled sections are welded together as shown. Knowing that for the steel alloy used, øy = 36 ksi and ơŋ 58 ksi and using a factor of safety of 3.0, determine the largest couple that can be applied when the assembly is bent about the z axis. 14 Fig. P4.7 Fig. P4.8 V C

O 88 130% v - + I Annotate T| Edit Trial expired Unlock Full Version ENGR 263 + A A A T O 4.10 Member AB is the beam under consideration. As shown in the illustration of the loading condition, member AB is an overhanging beam that supports a uniformly distributed roof load of 500 lb/ft. It also carries concentrated loads from a rooftop HVAC unit (4000 lb), an interior hanging display support (2000 lb), and a marquee sign (3000 lb). Marquee overnang Displau SLIPPort II Raof Kiots Ol I W = 500 Ib/Ft A B 4000 b 2000 000 I Steel beam !! I1 3 FE 5 FE - Ft RoOFtop HVAC unit 10 FE 4 Ft Marquee sign< R R2 Steel beam (negligible weight) Free-body diagram Dispiay Support Loading condition

Mex Force 15 KN APPlied on nail what is The Max V If spacing between Nail is 75cm 2 15cm 5cm 15cm en 10cm 5cm 9cm

Complete Table P4.2. For a member where a deflection criterion controls, which material would require a larger cross section? What about for a member where tension controls? TABLE P4.2 Mild Steel 7178 T76 Aluminum Yield Strength Ultimate Strength Modulus of Elasticity