Two tempered-steel bars, each 16 in. thick, are bonded to a ½ -in. mild-steel bar. This composite bar is subjected asshown to a centric axial load of magnitude P. Both steels are elastoplastic with E= 29 × 106 psi and with yield strengthsequal to 100 ksi and 50 ksi, respectively, for the tempered and mild steel. The load P is gradually increased from zero untilthe deformation of the bar reaches a maximum value dm = 0.04 in. and then decreased back to zero. Take L = 15 in.NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.2.0 in.in.3 in.316 in.Determine the maximum stress in the tempered-steel bars.The maximum stress in the tempered-steel bars isksi.

Answered: Image /qna-images/answer/5753c43e-b576-4b4d-9f86-e1db62d454b5.jpg

Answered: Two tempered-steel bars, each 16 in.…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter10: Thermal Physics

Section: Chapter Questions

Problem 62AP: A 250-m-long bridge is improperly designed so that it cannot expand with temperature. It is made of...

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Verigy that the SI of hpg is N/m2.
Some chimney pipes have a T-shape, with a crosspiece on top that helps draw up gases whenever there is even a slight breeze. Explain how this works in terms of Bernoulli’s principle.
You are watching a new bridge being built near your house. You notice during the construction that two concrete spans are placed end to end to form a span of length Li. However, they are placed end to end so that no room is allowed for expansion (Fig. P18.11a). In the opening storyline for this chapter, we talked about buckling sidewalks. The same thing will happen with spans on bridges if allowance is not made for expansion (Fig. P18.11b). You want to warn the construction crew about this dangerous situation, so you calculate the height y to which the spans will rise when they buckle in response to a temperature increase of T.
A scuba diver makes a slow descent into the depths of the ocean. His vertical position with respect to a boat on the surface changes several times. He makes the first stop 9.0 m from the boat but has a problem with equalizing the pressure, so he ascends 3.0 m and then continues descending for another 12.0 m to the second stop. From there, he ascends 4 m and then descends for 18.0 m, ascends again for 7 m and descends again for 24.0 m, where he makes a stop, waiting for his buddy. Assuming the positive direction up to the surface, express his net vertical displacement vector in terms of the unit vector. What is his distance to the boat?
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Repeat the preceding problem with 2.00 kg of ice instead of 1.00 kg.
A copper rod with length 1.4 m and cross-sectional area 2.0 cm2 is fastened to a steel rod of length L and cross-sectional area 1.0 cm2. The compound structure is pulled on each side by two forces of equal magnitude 6.00 104 N (Fig. P14.57). Find the length L of the steel rod if the elongations (L) of the two rods are equal. Use the values Ysteel = 2.0 1011 Pa and YCu = 1.1 1011 Pa. FIGURE P14.57
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A 250-m-long bridge is improperly designed so that it cannot expand with temperature. It is made of concrete with = 12 106 (C)1. (a) Assuming the maximum change in temperature at the site is expected to be 20C, find the change in length the span would undergo if it were free to expand. (b) Show that the stress on an object with Youngs modulus Y when raised by T with its ends Firmly fixed is given by a Y T. (c) If the maximum stress the bridge can withstand without crumbling is 2.0 107 Pa, will it crumble because of this temperature increase? Youngs modulus for concrete is about 2.0 1010 Pa.
Assume that a pendulum used to drive a grandfather clock has a length L0=1.00 m and a mass M at temperature T=20.00 °C. It can be modeled as a physical pendulum as a rod oscillating around one end. By what percentage will the period change if the temperature increases by 10°C? Assume the length of the rod changes linearly with temperature, where L=L0(1+T) and the rod is made of (=18106C1) .
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