A member is formed by connecting two steel bars shown below. Assuming that the bars are prevented from buckling sideways, calculate the magnitude force "P" that will cause the total length of the member to decrease 0.72 mm the values of elastic modulus for steel is 223 MPa. Take H1 = 7 cm, H2 = 10 cm, top bar (R) is 2 x 2 cm and bottom bar (Q) is 6 x 6 cm. Also, determine the stress-induced in each section of the bar. i) Magnitude Force, P =  ii) Stress-induced in the top bar =  iii) Stress-induced in the bottom bar

Q: SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and…

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Q: 2. The bronze bar 3 m long with a cross-sectional area of 350 mm2 is placed between two rigid walls.…

A: Length of bar, L =3mCross sectional area of bar, A=350mm2Initial temparature, t1 =20°CCoefficient of…

Q: 2. The rigid bar of negligible weight is pinned at O and attached to two vertical rods. Assuming…

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Q: Problem 1: The steel rod is placed inside the copper tube, the length of each being ex-, actly 15…

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Q: bar shown if the temperature increas supports are unyielding and that the buckling. 4 Aluminum A =…

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Q: 9. Calculate the increase in stress for each segment of the compound bar shown. If the temperature…

A: Given:- The cross-sectional area of the aluminum bar = Aal = 2 in2  The modulus of elasticity of the…

Q: A mild steel bar, 1.5 m long, has a square section 40 mm x 40 mm. The bar is subjected to a two-…

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Q: A mild steel bar, 1.5 m long, has a square section 40 mm x 40 mm. The bar is subjected to a two-…

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Q: Situation 2 For the assembly shown, determine the stress in each of the two vertical rods if the…

A: Given data in question  Length of rods Area of rods Modulus of Elasticity of rods Coefficient of…

Q: Q.2 The bar is made of an aluminium alloy having a stress-strain diagram that can be approximated by…

A: Solution: Given: Bar is made of an aluminium alloy ∈Max=0.05

Q: SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and…

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Q: a. Determine b. Determine c. Determine normal force in rod AC, NAC. normal force in rod AB, NAB.…

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Q: Two steel tubes are joined at B by four pins (dp = 11 mm), as shown in the cross section a – a in…

A: Diameter of external tube AB dAB = 40mm Diameter of internal tube BC dBC = 28mm Diameter of pins dp…

Q: Calculate the increase in stress in steel segment of the compound bar if the temperature is…

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Q: A 5.0m simple beam supports the given floor loads Wu and a concentrated load Pu due to the wall…

A: Given:- 5.0 m simple beamPu=45kNwu=44.24kN/mspan=5.0mTo find:-stress in steel

Q: Sketch the idealized stress-strain curve for A36 Steel. Label and provide the appropriate values for…

A: The  stress-strain curve for A36 Steel is given below.

Q: A 50 mm X 80 mm rectangular steel plate subjected to the uniaxial stress condition is shown in the…

A: Given data  Stress in x direction (σx) = 200 MPa  E = 200 GPa  μ = 0.3

Q: SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and…

A: Given data: Allowable stress in steel =120 MPa Allowable stress in bronze=60 MPa a=1.8 m b=1.3 m…

Q: In the following structure, determine the stress in each bar. Indicate whether the stress is tensile…

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Q: A steel bar, whose cross section is 0.60 inch by 4.10 inches, was tested in tension. An axial load…

A: solution cross section dimensions 0.6 inch ×4.1inch deformation of 0.115 inche over length L…

Q: A steel bar has three segments with 600 mm long which is subjected to the different loads as shown…

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Q: SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and…

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Q: 8. A rigid bar AB is supported by three rods. A load P= 250 kN is applied to the bar. The modulus of…

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Q: A rod is composed of an aluminum section rigidly attached between steel and bronze sections, as…

A: Determine stress in each section

Q: ProbleT --- An aluminum bar has diameter d = 40 mm, shear modulus of elasticity G = 27 GPa, and…

A: Simple stress is expressed as σ=PA, it is force per unit area. Shear stress is developed is applied…

Q: The assembly shown in figure below consists of a light rigid bar AB, pinned at O, that is attached…

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Q: B) The final length of the aluminum bar

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Q: steel L=1.5 m A=300 mm2 2 m E= 200 GPa C B D Aluminun P = 20 kN L=2 m k-1m A= 500 mm2 E= 70 GPa

A: Solution:- Taking moment about point B, ∑MB=0 2Pal+Pst=2×200002σal ×Aal+σst×Ast=400002σal…

Q: Solve the following problems completely and neatly. Use 3 decimal places in all your computations…

A: Given: b = 250 mm h = 400 mm cover = 40 mm d = 400-40 = 360 mm fc = 21 MPa fy = 415 MPa…

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.