MECH ENGINEERING DESIGN(LL)+ACCESS
10th Edition
ISBN: 9781260113952
Author: BUDYNAS
Publisher: MCG
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Chapter 9, Problem 42P
To determine
The comparison between horizontal and vertical weldemnt.
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A cylindrical air-compressor tank with an inside diameter of 50 mm is to be designed to withstand safely a working pressure of 0.86 MPa. Boiler plate with an allowable tensile stress of 76 MPa. All seams will be butt welds with an expected efficiency of 100 percent.
a.) Determine the force per lineal mm of longitudinal seam,
b.) Determine the required thickness “t” of wall,
c.) Determine the unit stress in the circumferential seam.
A circular shaft of diameter 120 mm is welded to a rigid plate by a fillet weld of size 6 mm. If a torque of 8 kNm is applied to the shaft, what is the maximum stress in the weld?.
Te - Effective throat thickness well in mm = 6 sin45°
Consider the following drawing in which plate 1 is welded onto plate 2 as shown for tensile and shear loading. The plates are fillet welded with a weld thickness of 6 mm as shown for a length of 150 mm.
The plates have an ultimate strength of 275 MPa and the welding was done with F70 welding electrodes, which possesses an ultimate strength of 483 MPa.
Consider a partial factor of safety of 1.7 for the welded joint and determine the design strength of the weld joint, both in tension (Tdw) and in shear (Vdw) due to the forces acting on it.
a) Determine the design strength of the following weld in tension ( ) due to vertical forces.
b) Determine the design strength of the weld in shear ( ) due to horizontal forces.
Attached pic is shear equation for calculation
Tension equation for calculation is: Tdw = FyLwte /Ymw
Chapter 9 Solutions
MECH ENGINEERING DESIGN(LL)+ACCESS
Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 99 to 912 The materials for the members being...Ch. 9 - Prob. 10P
Ch. 9 - Prob. 11PCh. 9 - 99 to 912 The materials for the members being...Ch. 9 - 913 to 916 A steel bar of thickness h is welded to...Ch. 9 - 913 to 916 A steel bar of thickness h is welded to...Ch. 9 - 913 to 916 A steel bar of thickness h is welded to...Ch. 9 - Prob. 16PCh. 9 - Prob. 17PCh. 9 - 917 to 920 A steel bar of thickness h, to be used...Ch. 9 - 917 to 920 A steel bar of thickness h, to be used...Ch. 9 - 917 to 920 A steel bar of thickness h, to be used...Ch. 9 - Prob. 21PCh. 9 - 921 to 924 The figure shows a weldment just like...Ch. 9 - Prob. 23PCh. 9 - Prob. 24PCh. 9 - 9-25 to 9-28 The weldment shown in the figure is...Ch. 9 - 9-25 to 9-28 The weldment shown in the figure is...Ch. 9 - Prob. 27PCh. 9 - 925 to 928 The weldment shown in the figure is...Ch. 9 - The permissible shear stress for the weldment...Ch. 9 - Prob. 30PCh. 9 - 9-30 to 9-31 A steel bar of thickness h is...Ch. 9 - In the design of weldments in torsion it is...Ch. 9 - Prob. 33PCh. 9 - Prob. 34PCh. 9 - The attachment shown carries a static bending load...Ch. 9 - The attachment in Prob. 935 has not had its length...Ch. 9 - Prob. 37PCh. 9 - Prob. 39PCh. 9 - Prob. 40PCh. 9 - Prob. 42PCh. 9 - 9-43 to 9-45 A 2-in dia. steel bar is subjected to...Ch. 9 - 9-43 to 9-45 A 2-in dia. steel bar is subjected to...Ch. 9 - Prob. 45PCh. 9 - Prob. 46PCh. 9 - Find the maximum shear stress in the throat of the...Ch. 9 - The figure shows a welded steel bracket loaded by...Ch. 9 - Prob. 49PCh. 9 - Prob. 50PCh. 9 - Prob. 51PCh. 9 - Brackets, such as the one shown, are used in...Ch. 9 - For the sake of perspective it is always useful to...Ch. 9 - Hardware stores often sell plastic hooks that can...Ch. 9 - For a balanced double-lap joint cured at room...
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- A bracket is as shown in figure 2. Determine the uniform weld size for the arrangement. The permissible shear stress of weld material is 80 MPa. Consider the loading condition as shown in figure.arrow_forwardQuestion: a) A plate 100 mm wide and 10 mm thick is to be welded to another plate by means of double parallel fillets. The plates are subjected to a static load of 80 kN. Find the length of weld if the permissible shear stress in the weld does not exceed 55MPa. Determine the increase in load carrying capacity if a combination of single transverse double parallel fillet is used the permissible tensile strength of material is 80MPa. b) Draw a neat sketch of double riveted double cover but joint. If 8mm plates with 20 mm diameter rivets having a pitch of 50 mm are joint using double riveted lap joint. The permissible stresses are permissible tensile stress = 120 MPa;Permissible crushing stress= 100 MPa; Permissble shear stess= 150 MPa. Find the strengths and efficiency of joint, taking the strength of the rivet in double shear acoording to the indian boiler standards.arrow_forwardDesign a single riveted lap joint to connect two mild steel plates, 14.5 mm thick, the joint being designed for maximum efficiency. The allowable stresses are σt = 55 N/mm2 , = 32.5 N/mm2 and σc = 63.5 N/mm2 . Also calculate the minimum force per pitch which will rupture the jointarrow_forward
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