QUESTION 1 A double riveted double cover butt joint in plates 24 mm thick is made...
A triple riveted butt joint with equal double cover plates (zig-zag riveting) is used for the longitudinal joint of a Lancashire boiler of 2.5 m internal diameter. The working steam pressure is 1.12 N/mm2 and the efficiency of the joint is 85 per cent. Calculate the plate thickness for mild steel of 460 MPa ultimate tensile strength. Assume ratio of tensile to shear stresses as 7/6 and factor of safety 4. The resistance of the rivets in double shear is...
Three plates are joined with a 12 mm diameter pin as shown. Determine the maximum load P that can be transmitted by the joint if:(a)The maximum normal stress on a cross-section of the plates at the pin must not exceed 372 MPa.(b)The maximum bearing stress between a plate and the pin must not exceed 612 MPa.(c)The maximum shear stress on a cross-section of the pin must not exceed 268 MPa.(d)The punching shear resistance of the material in the top and...
assume:
width (mm)= 30
overlap (mm)= 21
glue strength (n/mm^2)= 1
3. See the double lap joint shown below. Assume that the plates at the joint are connected using an epoxy having a shear strength between 1.0 and 2.5 N/mm2 and the entire overlap is glued. a. Given the width of the plates and length of overlap from the spreadsheet, what is the shear stress in the epoxy? b. What is the minimum area of overlap given the strength of...
Question 1 (30 Marks) Plate A is fillet-welded to Plate B as shown in Figure 1. Plate A and Plate B have the same material properties Both plates are 10 mm thick. There are two holes (with a diameter of d) in Plate A. It is assumed that weld failure will not occur (a) If Plate A has a yield stress (fy) of 350 MPa and an ultimate tensile strength (fu) of 450 MPa, what is the maximum load (P)...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...