The lap joint carries an P axial load of P - 50 kN. It is connected by 3-18 mm 150 mm 20 mm 20 mm dia. rivets. 38. What is the bearing stress between a plate and a rivet? 39. What is the shear stress in rivet? 40. What is the maximum average tensile stress in each plate?
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- Two steel plates linked together via a double riveted butt joint is subjected to the load P. Assume that the applied load distributes evenly among the ten identical rivets and neglect friction. a. Draw the FBD of a middle plate and that of a cover plate. Label forces as a function of P. b. Draw the FBD of a rivet. Do all rivets experience the same shear stress? Why or why not? c. How many unique values of the bearing stress can be solved? Enumerate all. d. What is the maximum tensile stress in the middle plate? in the cover plate? Answer in terms of P. Use the following dimensions: diameter of rivets - 10 mm, thickness of cover plates - 15 mm, thickness of middle plates - 25 mm, width of both plates-100 mm. P- P- P -PThe central plates a in Fig.12 of the text are 9/16 in. thick and 9 in. wide. The diameter of the rivets connecting these plates to the outside plates is 1 in. If the allowable unit stress in tension on the net area is 20,000 psi, the safe tensile strength of eith central plate is A. 90,000 lb B. 88,600 lb C. 78,600 lb D. 75,800 lbfind the tensile of the bolt with diameter 38mm,80kN
- Please answer with explanation. Question : These two shear pins have the same length and same cross-sectional area. Both are subject to the same external tension load. Which pin has the lower shear stress? O a. The solid pin on the left. O b. The hollow pin on the right. O c. Both pins have the same shear stress.Yivet (d) Hiw@. what aload (F) نهل reaquired to sperate the riveted plates shocwn in figure? = (80 (Givet) Fis = 1-7 ) Mpai d. (rivet) = 15 mm 12/24/2020NEED ANSWER ASAP !!! The axial load 274 kN applied to the lap joint is distributed equally among the three 26.5-mm-diameter rivets. What is the bearing stress (in MPa) between a plate and a rivet if w = 135.4 mm and t = 29.5 mm?
- 3. An M16 x 2 bolt with a slotted hex nut is used to clamp together two 25 mm steel plates. The joint is assembled with a size 16 N washer underneath the bolt head. The bolt is a 5.8 class metric grade, with a proof strength of 380 MPa. The joint is intended to be permanent. Determine a suitable length for the bolt, rounded up to the nearest standard size in millimeters. Calculate the bolt stiffness, the elongation of the bolt after the necessary preload is developed, and the bolt torque required to apply the preload. Assume that coefficients of friction between the bolt, nut, and collar are all ~0.15. For steel, use E = 207 GPa. Standard threaded fastener lengths, dimensions of hexagonal nuts, and dimensions of metric plain washers are provided in the textbook appendices.A 5⁄8-inch-thick tension member is connected to two 1⁄4-inch splice plates, as shown in Figure The loads shown are service loads. A36 steel and 5⁄8-inchdiameter, Group A bolts will be used. If slip is permissible, how many bolts are required? Each bolt centerline shown represents a row of bolts in the direction of the width of the plates.Q1:Prepare a full-section assembly drawing of the four fastener assemblies shown in the Figure. Dimension both the clearance and the threaded holes. A top view may be shown if required. Scale 1: 1. .250-20 FHMS .375 HEX BOLT AND NUT THREADED INTO BASE 1.00 ↓ .50 T 2.00 Ø.375 STUD THREADED .312 HEX X 1.25 LG INTO BASE FOR 1.00 IN. CAP SCREW AND WITH HEX NUT AND LOCK WASHER ON SPOTFACE SURFACE PLATE WASHER A 2.00- -2.00 -1.00- BASE 1.00- .25 1.50
- Pc=nxdxtxo =2x25x20x150 150000 N The strength of the riveted joint= Least of P, Ps , Pc =150 000 N %3D The lap join the edges of There are th %3D 000 050= 02I X 0Z X 001 ='91d=d 0000$ =D0.625 or 62.5 % %3D 0000 a-single tr Homework: 1-A single riveted lap joint is made in 1.5 cm thick plates with 2 cm diameter rivets Determine the strength of the joint, if the pitch of rivets is 6 cm? Take 6,=1200 kg/cm ; o,= 900 kg/cm² ; 6=1600 kg/cm 2-Two plates 16-mm thick are joined by á double riveted lap joint. The pitch of each row of rivets is 9 cm. The rivets are 2.5 cm in diameter. The permissible stresses are as aqnop -4 c-paraller [ans:2827kg] 2. G,=1400 kg/cm ; 6,=1100 kg/cm² ; 6.= 2400 kg/cm 2. Find the efficiency of the joint . 3-A double riveted double cover butt joint is made in 1.2 cm thich plates with 18 mm diameter rivets.find the efficiency of the joint for a pitch of 8 cm. 2. 2. ст Take :6,=1150 kg/cm ; 6, = 800 kg/cm² ; oc=1600 kg/cm 10 mm thick, the allowable stresses are : 6, =…The hard copper containing solder (L-Cu) connection in Figure 4 is designed to be forced with a force of fully variable F 18000 N. What should be the distance I accordingly?Find the size of 14 bolts required for C.I.steam engine cylinder head. The diameter of the cylinder is 400 mm and the steam pressure is 0.12 N/mm.