subjected to uniform uniaxial tension of 95 MPa. A large uniform plate containing a rivet hole is The maximum stress in the plate is 1Pa
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- -26 A rectangular plate of dimensions 125 mm × 75 mm is subjected to tensile stress sy= 67 kPa and compressive stress a. If it is known that the normal stress along the diagonal t—t is ??t= -6.57 kPa, find stress ??y on element A. aThe given plate below with width of 200 mm andthickness of 16 mm is to be connected to two plates ofthe same width with half the thickness by 20 mmdiameter rivets as shown. The rivet hole is 2 mm greaterthan the rivet diameter. Allowable tensile stress on netarea is 0.6Fy. Allowable bearing stress is 1.35Fy. plate: fy = 241 mpa fu = 4141 mpa rivet: fv = 152 mpa Determine maximum load P for block shearThe figure shows 16-mm diameter bolts used to hold two steel plates by fitting inside a cylindrical spacers. Thenormal stress must not to exceed 230 MPa in the bolts and 160 MPa in the spacer. Determine the outer diameterof the spacer.
- 3. An axial pull of 35000 N is acting on a bar consisting of three lengths as shown below. If the Young's Modulus is 2.1 x 105 N/mm2. Determine (i) Stresses in each section, and; (ii) Total extension of the bar. Section 3 Section 2 Section 1 35000 N 35000 N 2 cm DIA 3 cm DIA 5 cm DIA k-20 cm- 25 cm -22 cm-The P load applied to a steel bar is transferred to the board by an annular washer. The diameter of the rod is 34mm and the inner diameter of the washer is 35.7 mm. Since it is known that the axial normal stress on the steel bar is 119 MPa, and the average bearing stress between the washer and the board should not exceed 34 MPA, how many mm is the smallest allowable outer diameter of the washer?Part 1. A composite assembly of length, L-375 mm, consisting of a steel (G-77 GPa) core (2) connected by rigid plates at the ends of an aluminum [G-35 GPa) tube (1) is shown. The aluminum tube has outside diameter D₁ - 50 mm and inside diameter d₁-30 mm. = 100 MPa, and the The solid steel core has diameter d₂-25 mm. The allowable shear stress of aluminum tube (1) is (rallow) allowable shear stress of steel core (2) is (Tallow)2= 135 MPa. Determine (a) the allowable torque T that can be applied to the composite shaft. (b) the corresponding torques produced in tube (1) and core (2). (c) the angle of twist produced by the allowable torque T. T D₁ L Calculate the polar moment of inertia, J₁, of the aluminum tube. Answer: J₁ (106) mm².
- Two 10-mm thick plate members are to be connected using straps of the same thickness and 12-mm diameter rivets as shown in the figure. Determine the maximum bearing stress if the maximum tensile stress on the plate members due to load "P" is 24 MPa. The members are 50-mm wide. Assuming all the rivets fill the holes.Calculate the combined stress (MPa) on the rod shown below using the principle stress method. Here, F1 = 0.35 kN, F2 = 0.12 kN, T = 428000 N-mm. Length and diameter of the rod are 75 cm and 75 mm, respectively. F2 F1 dP (1) B A A metal rod having two different diameters is loaded by an axial force P. Segments (1) and (2) are circular section diameters of 50 mm and 25 mm, respectively. If the normal stress in (1) is 40 MPa. Determine the following: The area of Segment (1) is equal to in mm?: The area of Segment (2) is equal to in mm²: The axial force (P) is equal to in kPa: The Normal Stress in Segment (2) is equal to in MPa:
- A pipe carrying steam at 3.5 MPa has an outside diameter of 450 mm and a wall thickness of 10 mm. A gasket is inserted between the flange at one end of the pipe and a flat plate used to cap the end. How many 47-mm-diameter bolts must be used to hold the cap on if the allowable stress in the bolts is 80 MPa, of which 55 MPa is the initial stress?A circular plate with simply supported edges subjected to a uniform pressure of P=900 KPa, as shown below, is considered. The plate thickness is h=8 mm, and the plate radius is RO=920 mm. If Young's modules and Poisson's ratio are assumed to be E=80 GPa and V=0.5, respectively, workout the absolute maximum radial stress of the plate centre in GPa. (NOTE: round-off your answer to 4 decimal places, and write your answer without considering the negative (-) sign). ↓ P Lr> Ro st 7The cross-sectional area of each member of the truss is 42 cm2. B 6m E 6m 100 kN 300 kN Determine the following: a. Normal Stress in member CD b. Normal Stress in member CF c. Bearing Stress in member CD, tco= 18 mm, diameter of the rivet= 20 mm