Mechanics of Materials
11th Edition
ISBN: 9780137605460
Author: Russell C. Hibbeler
Publisher: Pearson Education (US)
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Determine the vertical displacement of joint C. The members of the truss are made of 2014-T6 aluminum (E=73 GPa) and have 44 mm diameter rods.
Determine the vertical displacement of joint C of the truss loaded with P=30 kN. The members of the truss are
made of 2014-T6 aluminum (E=72 GPa) and have 52 mm diameter rods.
1.5 m
2 m
m-
Lütfen birini seçin:
a. None
b. 5.3 mm
c. 8.4 mm
d. 1.8 mm
е. 6.5 mm
A small stepladder has vertical rails and horizontal steps formed from a C-section aluminum channel. Two rivets, one in front and one in back, secure the ends of each step. The rivets attach the steps to the left and right hand rails. A 225 lb person stands in the center of a step. If rivets are formed of 6061-T6 aluminum, what should be the diameter d of the rivets? Use a factor of safety of 8 and round your answer to the nearest 1/16 of an in.
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- The wing spar ABD of a light plane is made from 2014-T6 aluminum and has a cross- sectional area of 800 mm², a height of 79 mm, and a moment of inertia about its neutral axis of 1.07(106) mª. Assume A, B, and C' are pins. The neutral axis passes through the cross-section at half of its height. Connection is made along the central longitudinal axis of the spar. The anticipated loading is to be as shown. (Figure 1) Determine the absolute maximum bending stress in the spar. 0.6 m 14.4 kN/m 0.9 m B -1.8 m-arrow_forwardDetermine the shape factor for the member having the tubular cross section.arrow_forwardThe horizontal link BC is made of 2014-T6 aluminum, if P = 10 kips, determine its new lengtharrow_forward
- For the lightweight truss which is loaded as shown 10 kN 5 kN -6 m -6 m A 4 m D -6 m 3 m 3 m Determine the number of joints/pins. Answer:arrow_forwardDetermine the vertical displacement of joint D. Each A-36 steel member has a cross-sectional area of 400 mm2.arrow_forwardLink AB is to be made of steel for which the normal stress is 450 MPa. Determine the cross-sectional area of AB. Assume that the link will be adequately reinforced around the pins at A and B. draw free-body diagramarrow_forward
- The 7/8-in.-diameter pins at A and C that support the structure are in single shear. Find the largest force F that can be applied to the structure if the working shear stress for these pins is 5000 psi. Neglect the weights of the members. Please only respond to this questions - Solve for F considering member BC. -Evaluate and compare obtained values of F and choose the maximum allowable load for the structure.arrow_forwardDetermine the force carried by the members of the truss. AC = CE = EF = FH = 2.0m DE = 3.0 m ANS. BD = 25kN, C CD = 12kN, T CE = 13.33kN, Tarrow_forwardXAO -0.88% F Identify the zero-force members. What is the force in members DE, BD and BC? (Method of joint) A 4 m Q Search E B 800 kN L 4 m Page < LO с 7 W of 13 3 marrow_forward
- Design the joint and cotter joint to resist the load of 100 and 150 kN respectively. The material for both joint is 40C8 FS =3arrow_forwardThe composite bar is firmly attached to unyielding supports. Compute the stress in each material caused by the application of the axial load P = 175 kNarrow_forwardProblem – Determine the force in each member of the truss shown below C F= 100 kips 1S' 15' 15 D E - 20- 20arrow_forward
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