The rigid beam is supported by a pin at A and wires BD and CE (made of steel, E=200 GPa, and the cross sectional area is 1500 mm“). If the distributed load (W) causes the end C to be displaced 10 mm downward, determine: a- the normal strain developed in wires CE and BD. b- the normal stress developed in wires CE and BD. c- the value of the distributed load (W). 15m
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- 6. Two bars are used to support a load P. When unloaded, AB is 5 in. long, AC is 8 in. long, and the ring at A has coordinates (0, 0). If a load is applied to the ring at A, so that it moves it to the coordinate position (0.25 in., -0.73 in.), determine the normal strain in each bar. (Use the figure in Prob.5)5. Two bars are used to support a load. When unloaded, AB is 5 in. long, AC is 8 in. long, and the ring at A has coordinates (0, 0). If a load P acts on the ring at A, the normal strain in AB becomes EAB = 0.02 in/in., and the normal strain in AC becomes EAC = 0.035 in/in. Determine the coordinate position of the ring due to the load. 60 5 in. 8 in. A PThe rigid bar AB is supported by a pin at A and by the wire BD. 2,5 m If the load P causes point C to move 8 mm to the left, determine the normal strain in the wire. 3,5 m D 4.0 m
- Current Attempt in Progress Arigid steel bar is supported by three rods, as shown. There is no strain in the rods before the load Pis applied. After load Pis applied, the normal strain in rod (2) is 870 uin/in. Assume initial rod lengths of L- 156 in. and L2- 63 in. Determine (a) the normal strain in rods (1). (b) the normal strain in rods (1) if there is a 0.019in gap in the connections between the rigid bar and rods (1) at joints A and C before the load is applied. (c) the normal strain in rods (1) if there is a 0.019 in. gap in the connection between the rigid bar and rod (2) at joint B before the load is applied. Answers: (al e uinvin. (b) e- pin/in. (c) - uin/in.The rigid beam is supported by a pin at B and wires AD and CE. (Figure 1) The load P on the beam causes the end A to be displaced 6.5 mm downward. The wires are unstretched when the beam is in horizontal position. Figure 3 m D A 2 m < 1 of 1 2 m- -1.5 m- EX 2 m Part A Determine the normal strain developed in wire CE. Express your answer in millimeters per millimeter to three significant figures. ECE Submit Part B vec VE ΑΣΦ | X Incorrect; Try Again; 5 attempts remaining EAD = Previous Answers Request Answer vec Submit Determine the normal strain developed in wire AD. Express your answer in millimeters per millimeter to three significant figures. Π ΑΣΦ ↓↑ ? Request Answer mm/mm ? mm/mmAsap
- Question 3 Determine the elongation of the square hollow bar when it is subjected to the axial force P = 100 kN, find the permanent elongation of the bar. The bar is made of a metal alloy having a stress-strain diagram which can be approximated as shown. o (MPa) 500 600 mm P 50 mm 250 5 mm e (mm/mm) 0.00125 0.05 50 mm ´5 mm a. Find the stress (MPa) of the bar. b. Find the permanent elongation (mm) of the bar.The rigid body ABC is connected by two links and is exerted by force P as shown aside. If the normal strain in link BE is 0.5x10°, the normal strain in link AD is: -3 D E A 2 m PV 1 m Select one: -3 a. 4.5×10 b. 1.5x10° c. 1.0×10 -3 d. 3.0×10 -3 e. 0.75x10 f. None 3 m 1.5 m.The assembly is subjected to a tension force P = 2500 N. If these cables are arranged in a parallel assembly as shown, determine the stress of each cable. Cable Length (m) Area (sq. mm.) E (GPa) A 1.4 30 50 B 1.0 10 80 C 1.2 8 60
- 1. Determine the resultant internal loadings acting on the cross-section at C of the simply supported beam shown below. 100Kx/m 175KN H -3m-4-2m- 2. Three rigid rods are pin-connected as shown. Determine the strain undergone by the rod BC (ie., Enc) when a vertical force P is applied. A and E for three rods are same and constant. L A, E= constant for all 3 rods LITL L= Length of each you 3. The bar has a cross-sectional area of A and modulus of clasticity, E. If it is subjected to a distributed axial loading that increases linearly from w=0 at x-0 to Wo at x = L, determine the axial displacement of point B and C. Also determine the expression for in section AB. Wo -A,E= Constant xQ2 Figure Q2 shows a shaft consists of Rods AB, BC and CD which made of Aluminium, Brass and Steel, respectively. Given the modulus of elasticity of materials are Eaiuminium = 69 GPa, Eirass = 100 GPa and Esteel= 250 GPa. Determine, I) The internal forces for each segment (AB, BC and CD) by showing appropriate free-body diagram, FBD. ii) The total strain energy in the whole rod assembly AB, BC and CD. iii) The allowable stress in the rod assembly, and justify the chosen answerPart of a control linkage for an airplane consists of a rigid member CB and a flexible cable AB. Originally the cable is unstretched. A force is applied to the end B of the member and causes it to rotate by a very small angle 8. You want to determine the normal strain in cable AB. Which of the following assumptions is FALSE? Let B’ be the new location of point B after applying the load P. i. B' is located directly to the right of point B. ii. The length of CB' is 800 mm. |0– A 600 mm BO C 800 mm P B A 600 mm 0.5/ 800 mm