Mechanics of Materials (MindTap Course List)
9th Edition
ISBN: 9781337093347
Author: Barry J. Goodno, James M. Gere
Publisher: Cengage Learning
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Chapter 8, Problem 8.5.23P
A semicircular bar AB lying in a horizontal plane is supported at B (sec figure part a). The bar has a centerline radius R and weight q per unit of length (total weight of the bar equals TiqR). The cross section of the bar is circular with diameter d.
(a) Obtain formulas for the maximum tensile stress
(b) Repeat part (a) if the bar is a quarter-circular segment (see figure part b) but has the same total weight as the semicircular bar.
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The crash cushion for a highway barrier consists of a
nest of barrels filled with an impact-absorbing material.
The barrier stopping force is measured versus the vehicle
penetration into the barrier. (Figure 1)
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Determine the distance a car having a weight of 4000 lb will penetrate the barrier if it is originally traveling at 55 ft/s when it
strikes the first barrel.
Express your answer to three significant figures and include the appropriate units.
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Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 12 MPa, and the
condenser pressure is 8 kPa. The mass flow rate of steam entering the turbine is 50 kg/s.
Determine:
(a) the net power developed, in kW.
(b) the rate of heat transfer to the steam passing through the boiler, in kW.
(c) the percent thermal efficiency.
(d) the mass flow rate of condenser cooling water, in kg/s, if the cooling water undergoes a temperature
increase of 18°C with negligible pressure change in passing through the condenser.
4. The figure below shows a bent pipe with the external loading FA
228 lb, and M₁ = M₂ = 1 kip-ft. The force Fernal loading FA = 300 lb, FB:
parallel to the y-axis, and
and yc = 60°.
= 125 lb, Fc
=
acts parallel to the x-z plane, the force FB acts
Cartesian resultan Coordinate direction angles of Fc are ac = 120°, ẞc = 45°,
a. Compute the resultant force vector of the given external loading and express it in
EST
form.
b. Compute the resultant moment vector of the given external loading about the origin, O,
and express it in Cartesian vector form. Use the vector method while computing the
moments of forces.
c. Compute the resultant moment vector of the given external loading about the line OA
and express it in Cartesian vector form.
:00 PM EST
k
ghoufran@buffaternal du
2 ft
M₁
A
40°
FA
M2
C
18 in
1 ft
Fc
25
houfran@bald.edu - Feb 19,
3 ft
FB
Chapter 8 Solutions
Mechanics of Materials (MindTap Course List)
Ch. 8 - A spherical balloon is filled with a gas. The...Ch. 8 - A spherical balloon with an outer diameter of 500...Ch. 8 - A large spherical tank (see figure) contains gas...Ch. 8 - Solve the preceding problem if the internal...Ch. 8 - A hemispherical window (or viewport) in a...Ch. 8 - A rubber ball (sec figure) is inflated to a...Ch. 8 - (a) Solve part (a) of the preceding problem if the...Ch. 8 - A spherical steel pressure vessel (diameter 500...Ch. 8 - A spherical tank of diameter 48 in. and wall...Ch. 8 - Solve the preceding problem for the following...
Ch. 8 - A spherical stainless-steel tank having a diameter...Ch. 8 - Solve the preceding problem if the diameter is 480...Ch. 8 - : A hollow, pressurized sphere having a radius r =...Ch. 8 - A fire extinguisher tank is designed for an...Ch. 8 - Prob. 8.3.2PCh. 8 - A scuba t a n k (see fig ure) i s bci ng d e...Ch. 8 - A tall standpipc with an open top (see figure) has...Ch. 8 - An inflatable structure used by a traveling circus...Ch. 8 - A thin-walled cylindrical pressure vessel of a...Ch. 8 - A strain gage is installed in the longitudinal...Ch. 8 - A circular cylindrical steel tank (see figure)...Ch. 8 - A cylinder filled with oil is under pressure from...Ch. 8 - Solve the preceding problem if F =90 mm, F = 42...Ch. 8 - A standpipe in a water-supply system (see figure)...Ch. 8 - A cylindrical tank with hemispherical heads is...Ch. 8 - : A cylindrical tank with diameter d = 18 in, is...Ch. 8 - A pressurized steel tank is constructed with a...Ch. 8 - Solve the preceding problem for a welded Tank with...Ch. 8 - A wood beam with a cross section 4 x 6 in. is...Ch. 8 - Prob. 8.4.2PCh. 8 - A simply supported beam is subjected to two point...Ch. 8 - A cantilever beam with a width h = 100 mm and...Ch. 8 - A beam with a width h = 6 in. and depth h = 8 in....Ch. 8 - Beam ABC with an overhang BC is subjected to a...Ch. 8 - A cantilever beam(Z, = 6 ft) with a rectangular...Ch. 8 - Solve the preceding problem for the following...Ch. 8 - A simple beam with a rectangular cross section...Ch. 8 - An overhanging beam ABC has a guided support at A,...Ch. 8 - Solve the preceding problem if the stress and...Ch. 8 - A cantilever wood beam with a width b = 100 mm and...Ch. 8 - . A cantilever beam (width b = 3 in. and depth h =...Ch. 8 - A beam with a wide-flange cross section (see...Ch. 8 - A beam with a wide-flange cross section (see...Ch. 8 - A W 200 x 41.7 wide-flange beam (see Table F-l(b),...Ch. 8 - A W 12 x 35 steel beam is fixed at A. The beam has...Ch. 8 - A W 360 x 79 steel beam is fixed at A. The beam...Ch. 8 - A W 12 X 14 wide-flange beam (see Table F-l(a),...Ch. 8 - A cantilever beam with a T-section is loaded by an...Ch. 8 - Beam A BCD has a sliding support at A, roller...Ch. 8 - , Solve the preceding problem using the numerical...Ch. 8 - A W 12 x 35 steel cantilever beam is subjected to...Ch. 8 - A W 310 x 52 steel beam is subjected to a point...Ch. 8 - A solid circular bar is fixed at point A. The bar...Ch. 8 - A cantilever beam with a width h = 100 mm and...Ch. 8 - Solve the preceding problem using the following...Ch. 8 - A cylindrical tank subjected to internal...Ch. 8 - A cylindrical pressure vessel having a radius r =...Ch. 8 - A pressurized cylindrical tank with flat ends is...Ch. 8 - A cylindrical pressure vessel with flat ends is...Ch. 8 - The tensional pendulum shown in the figure...Ch. 8 - The hollow drill pipe for an oil well (sec figure)...Ch. 8 - Solve the preceding problem if the diameter is 480...Ch. 8 - . A segment of a generator shaft with a hollow...Ch. 8 - A post having a hollow, circular cross section...Ch. 8 - A sign is supported by a pole of hollow circular...Ch. 8 - A sign is supported by a pipe (see figure) having...Ch. 8 - A traffic light and signal pole is subjected to...Ch. 8 - Repeat the preceding problem but now find the...Ch. 8 - A bracket ABCD having a hollow circular cross...Ch. 8 - A gondola on a ski lift is supported by two bent...Ch. 8 - Beam A BCD has a sliding support at A, roller...Ch. 8 - A double-decker bicycle rack made up of square...Ch. 8 - A semicircular bar AB lying in a horizontal plane...Ch. 8 - Repeat Problem 8.5-22 but replace the square tube...Ch. 8 - An L-shaped bracket lying in a horizontal plane...Ch. 8 - A horizontal bracket ABC consists of two...Ch. 8 - , An arm A BC lying in a horizontal plane and...Ch. 8 - A crank arm consists of a solid segment of length...Ch. 8 - A moveable steel stand supports an automobile...Ch. 8 - A mountain bike rider going uphill applies a force...Ch. 8 - Determine the maximum tensile, compressive, and...Ch. 8 - Prob. 8.5.32PCh. 8 - A plumber's valve wrench is used to replace valves...Ch. 8 - A compound beam ABCD has a cable with force P...Ch. 8 - A steel hanger bracket ABCD has a solid, circular...
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