A rod consisting of two cylindrical portions AB and BC is restrained at both ends. Portion AB is made up of steel (Es= 200 GPa, ɑs = 11.7 x 10-6/ºC) and portion BC is made up of brass (Eb = 105 GPa, ab = 20.9 x 10/°C). Knowing that the rod is initially unstressed, a.) Determine the stresses induced in the steel and brass segments when there is a temperature rise of 50°C. b.) If there is a gap of 0.2 mm between point C and the lower support, determine the amount of reduction of the support reactions.

Q: GIVEN: Solid aluminum bar shown: 4 in. by 4 in. E = 10 x 10° psi oy = 36 ksi 4000 & 200016 4000 16 B…

A: A) Load in each section of bar PAB = 4000 lb ( T )  PBC = 4000 - 2000 = 2000 lb ( T ) PCD = 4000 -…

Q: Taking into account only the effect of normal stresses, determine the strain energy of the prismatic…

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Q: The temperature of the cylindrical rod is heated to 45°C which is fixed in between A and C rigid…

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Q: t p= 0.2N2 in P = 500 lbf 3 1.N1 in 2p h = H -2p Material: Aluminum (E=10.0x106 Ib/in?, v= 0.3)…

A: Given     N1=7  and N2=0Height of the section H=1.N1=1.7 inand thickness ρ=t=0.2N2=0.20 inreduced…

Q: The cantilever beam shown in Figure A is subjected to load magnitudes o shown in Figure B has…

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Q: When the normal stresses are at their maximum or minimum values, the shear stresses are zero. We can…

A: 1- Yes when normal stresses are maximum or minimum, then at that element shear stress is zero. 2-…

Q: The shaft is made of A992 steel. It has a diameter of 0.7 in. and is supported by bearings at A and…

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Q: H.W 3 Two aluminum alloy plates (2) are attached to the sides of a wooden beam (1) as shown in…

A: Solution: Given data: b1=80 mmd1=240 mmb2=10 mmd2=120 mma=60mmE1=12.5 GpaE2=70 Gpa Calculation:…

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.