7. Determine the size of fillet welds required for the weld group shown in fig. 10.21.
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- Question No. 11: (a) Illustrate flatness, straightness and circularity with symbol. (b) A circular shaft, 80 mm in diameter is welded to support by means of a circumferential fillet weld. It is subjected to a torsion moment of 3000 N-m. Determine the size of weld, if the maximum shear stress in the weld is not to exceed 70 N/mm2 . (c) Analyze different stresses during design of screw and nut02: Two plates, 20 mm thick, are welded together by means of transverse-fillet welds. The ultimate tensile strength of a weld metal is 415 MPa. The surface finish factor of the weld surface is 0.5, and the size factor is 0.85. The reliability is 90%. Determine the length of the weld if the factor of safety is 2.5. The transverse force on the welds is 80 kN, which is completely reversed under fatigue loading. Take: A=13mm. 25 A, Toe Good luck6) In the given Fig. 2, the butt-welded joint is subjected to uniaxial tensile load of 10 kN, with throat thickness of 5 mm and length of the weld as 100 mm. So calculate the tensile stress generated for each weld plates? N.B. The butt joint efficiency is 90% Fig. 2 O 22.22 MPa O11.11 MPa 2.22 MPa O1.11 MPa
- Problem 14.3.A A 4 × 4 x 2-in. angle of A36 steel is to be welded to a plate with E 70 XX electrodes to develop the full tensile strength of the angle. Using %-in. fillet welds, compute the design lengths for the welds on the two sides of the angle, assuming development of tension on the full cross sec- tion of the angle. A=3.75 inch2 L1= 10.94" L2 = 5.09" IF only connected leg, L=7.7"; 4.75 each sideSketch 2 NDT symbols illustrating different methods that can be used to indicate multiple test requirments for the same section of weld.a. Show how the extent of the surfacing weld is indicated between the vertical centerlines in the following illustration.
- QUESTION 6 What is the safety factor for this weld? F=671 Ibf, b=1 in; d=2.2 in; h=1/4 in. The weld metal is E7018, and the member is 10 in long. y F hO wrapping the weld around the corner a minuimum of the specified weld size and ar wrapping the weld around the corner for a distance not less than two times nor mor QUESTION 4 On all CJP groove welds in butt joints transverse to the computed tensile stress, they:. O A. Shall have no visible porosity that exceeds 1/32" O B. shall have no visible porosity that exceeds 3/32" O C. shall have no visible porosity O D. shall not have a sum of visible porosity that exceeds 3/8" O E. shall not have a sum of visible porosity that exceeds 1/2" QUESTION 5Find the information from the following weld symbol. 20 2.
- Compute for the total length of weld required with the given tension load, T. Tension member is 50x50x6mm angle bar. Fexx = 414 MPa and weld size of 5mm. Gusset Plate 105 kN Angle Bar c.g.11.16 Two 20-mm steel plates are butt-welded together. Both the plate and the welding electrode materials correspond to strength properties of Su = 500 MPa and S, = 400 MPa. The imposed loading fluctuates rapidly between -20 and +60 kN. Estimate the length of weld required in order to provide a safety factor of 2.5: (a) If the weld reinforcement is not removed. (b) If the excess weld material is carefully ground off to provide smooth, continu- ous surfaces.What weld section properties are required to analyze the weld between the horizontal tube and the vertical I-beam? O a. A O b.I O c. J O d.J,A O e. A, J, I O f. I.J