When force P is applied to the rigidarm ABC, point B displaces verticallydownward through a distance of 0.45mm. The strain in wire CD is in elasticrange.AᎠDI200 mm300 mm400 mmBCPThe normal strain developed in wireCD is most nearly:

To find the normal strain in wire CD, we need to determine the elongation of wire CD caused by the…

Answered: When force P is applied to the rigid…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Steel bar of cross-section 550mm2 is acted upon by the forces shown in figure. For steel, E = 200GPa. Compute the stress in BC Compute deformation of AB Compute the total elongation of the assembly.
Problem 2 The rigid bar is plnned at A and held by two flexible bars at E and C. The load P Is applled at B. The two flexible bars FE and DC each have a diameter of 1 In. The flexible bars are elastic- perfectly plastic with a yleld stress equal to 20 ksl and a yleld strain of 0.001. Determine the following: The load R, at first yleld and the corresponding deflection at B, &, The ultimate load Pu and the corresponding deflection du The permanent deflection and residual stresses in each rod if the ultimate load is removed Construct P - A curve showing yield, ultimate and permanent deformation o (ksi) 1 ft E F 1 ft1 ft 20 B P e (in./in.) 0.001 1 ft D 2 ft 1 ft A
The strain of a component, which has a tensile modulus of 3 X 105 MPa, and subjected to a stress of 5000KPA, is .a 0.0000167 .b 0.0000176 .C 0.000167 .d 0.00176
Two polymer bars are connected to a rigid plate at B, as shown. Bar (1) has a cross-sectional area of 1.58 in. and an elastic modulus of 2430 ksi. Bar (2) has a cross-sectional area of 0.714 in and an elastic modulus of 4110 ksi. Assume Ly-18 in., Lz-47in, Q=6,4 kips, P-3.2 kips, and R-128 kips. Determine the horizontal deflection of end Crelative to end A. (1) Answer: uCA in.
At a point on the surface of a machine component the stresses acting on the e face of a stress element are or = 55 MPa and Txy = 30 MPa (see figure). T- 30 MPa a, = 55 MPa What is the allowable range of values for the stress oy if the maximum shear stress is limited to TO = 34 MPa? Round to one decimal place. (a) Lower limit is MPa (b) Upper limit is MPa
The rigid bar ABCD supports point loads at A and D and is being supported by two bars at B and C. Determine the absolute value of the deformation at point C. (in mm) 120KN 4m Sm A B L= 6m 9o kN L-4m A= 0.04 m A = 0.0 6m² E=200 GAa E=80 GPa
2. (3 points) When loading is applied at a point on a body, the stress distributions at different cross sections are different. However, the stress distribution becomes uniform at locations far from the applied load. This is due to which principle? Name the principle. P Load distorts lines located near load P P C C Lines located away from the load and support remain straight P O avg A section a-a section b-b section c-c -Load distorts lines located near support Your answer
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The steel bars are firmly attached to rigid supports. Initially the temperature is 840F. Determine the stress in bars AC and CB when the temperature becomes -600F. Use E = 29 x 106 psi and α = 6.50 x 10-6/ 0F.
3. The rigid bar ABC is pinned at B and attached to the two vertical rods. Initially, the bar is horizontal and the vertical rods are stress-free. Determine the stress in the steel rod if the temperature of the both rods is decreased by 30°C. Neglect the weight of bar ABC. Steel L=0.9 m A 300 mm E= 200 x 10 N/m' a= 11.7 um/(m C) Aluminum L=1.2 m A = 1200 mm E = 70 x 10 N/m a= 23 pum/(m "C) Answer: Ost B 0.6 m 1.2 m
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When force P is applied to the rigid arm ABC, point B displaces vertically downward through a distance of 0.45 mm. The strain in wire CD is in elastic range. A Ꭰ DI 200 mm 300 mm 400 mm B C P The normal strain developed in wire CD is most nearly: