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- A 12.5-mm round structural steelrod is loaded in tension to fracture. The 200-mm gagelength of the rod was marked off in 25-mm lengthsbefore loading. After the rod broke, the strain in the50-mm containing the fracture was found to be 0.45mm/mm, and the total elongation of the other 150 mmwas found to be 37.5 mm. Determine the averagestrain for the 200-mm gage length.L1 = 2.02 m %3D L2 = 1.21 m H= 3.03 m Width of plate hanger = 40.04 mm Thickness of plate hanger = 10.01 mm %3D Bolt diameter = 20.02 mm %3D Allow shear stress of the bolt 68.08 MPa %3D Allow bearing stress of the bolt = 240.04 MPa LI L2 W 1. What is allowable stress in the hanger based on the bolt capacity in double shear at DDiscuss the different sources of size effect. Describe energetic size effect in fractureusing two different sizes of a plate with a center notch. Explain the significance of platethickness.
- Calculate the steel ratio that will produce a tension-controlled failure if compressivestrength f’c = 28 MPa and steel yield strength fy the answer is 0.02167 but i don't know how to solve it please helpProblem 4 Given two welded plates n A36 plates t= 3/ • fillet size w=1/4" Electrode Fexx= 70 ksi • plate width = 9" ● ● ↑ t=¾/2" = 2) = Pu= smaller of (1) A(2) w=1/4" Base Metal Strength, DRn is given by: ÞRn = 0.75(0.6Fu) (tBM)(Lw) t=3/8" Determine max Pu that can be applied to this connection ? hint: Dobtain Pue based on weld strength (transverse) BM strength = where tbm = thickness of the thinner connected plate Lw= length of the weld Fillet weld this side only i.e. lw= 9 in کہ ۔ Ри opyFor the cross-section shown below, use fe' = 4500 psi and fy = 70 ksi, and compute the following: %3D a) The moment of inertia of the gross section, I b) The moment of inertia of the cracked cross-section, Ier c) The cracking moment, Mer 3" 6" 3" 6" 3" 6" 24" 4 #10 O o o o 3" t 16"
- A 15" long rod, pinned at both ends, with radius of 1/2 ", made from 6061 T6 Aluminum is subjected to a compressive axial load of 10 Kips. Question 4 of 6: What is the axial strain in the rod? ( in percent) O .0013 O .13 O 1.3 O 13How to prevent retained austensite.A rectangular steel bar 0.5 inch thickness by 1.5 inches width and 220 ft long is subjectedto a 6000 lbs tensile load acting along its width. Find the deformation along its length andthickness if poison’s ratio is 0.27.
- ngineering / Civil Engineering / Q&A Library/1 a. a. During a tensile test on a speci... 1 a. During a tensile test on a specimen the following results were obtaineo Load (kN) 15 30 40 50 55 60 Extension 1.03 2.00 2.73 3.42 3.80 4.10 (mm) Diameter at fracture -16.5mm Diameter of gauge length =19mm Gauge length = 150mm Load at fracture - R0KN Gauge length at fracture = 170mm Ultimate load-120kN Plot the load/extension graph to an appropriate scale. Hence determine the i. Modulus of elasticity ii. Percentage elongation iii. Percentage reduction in area iv. The nominal stress at fracturebagol Supplemental Problems ton Jaum 22511? 15 10.16 A-in.-diameter structural nickel steel specimen was subjected to a tension test. After rupture it was determined that the 2-in. standard- l-gage length had stretched to 2.42 in. The minimum diameter at the fracture was measured to be 0.422 in. Compute the percent elongation and percent reduction in area.You are to evaluate the feasibility of a cencrete infill in a hollow structural steel section subjected only to pure berding Specifically, you are tasked to determine if there will be an increase in the bending mament capacity from a hollow structural square steel section with the following dimensions shown to a concrele filled steel tube 6 mm 100 mm Material Properties: Yield stress af Steet fy, steel - 420MPa Etaul = 200G Pa Maximum compressive strength of Concrete: fe = 27M Pa Eurede = 4700VT.(e und Eanerate in MPa Under elastic stress analysis, the stress distribution within the concrete filed steel tube is as follows, NA o, - EE, Steel Stress Concrete below the NA Is not considered for analysis Concrete Stress Distribution Distribution This stress distribution is for the untransformed cross section. Moreover, since concrele carry little to na tensile stresses, the portion of the concrete below the neutral axis which resist tensile stresses will nat be considered in the anahlysis…