The bronze bar 3 m long with a cross-sectional area of 350 mm? is placed between two rigid walls. At a temperature of -20°C, there is a gap A = 2.2 mm, as shown in the figure. Find the temperature at which the compressive stress in the bar will be 30 MPa. Use a = 18.0 x 10- / °C and E = 80 GPa. 3 m

The bronze bar 3 m long with a cross-sectional area of 350 mm? is placed between two rigid walls. At a temperature of -20°C, there is a gap A = 2.2 mm, as shown in the figure. Find the temperature at which the compressive stress in the bar will be 30 MPa. Use a = 18.0 x 10- / °C and E = 80 GPa. 3 m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

The bronze bar 3 m long with a cross-sectional area of 350 mm2 is placed between two rigid walls. At a temperature
of -20°C, there is a gap A = 2.2 mm, as shown in the figure. Find the temperature at which the compressive stress in
the bar will be 30 MPa. Use a = 18.0x 10-6 / °C and E = 80 GPa.
3 m-

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The bronze bar 3 m long with a cross-sectional area of 350 mm2 is placed between two rigid walls. At a temperature of –20°C, there is a gap of 2.2 mm, as shown below. Determine the temperature in °F at which the compressive stress in the bar will be 30 MPa. Use α =18(10)-6/°C and E = 80 GPa. Note: Draw the Free Body Diagram, include the units/dimensions, use the proper formula and round-off all the answers and final answers to 3 decimal places.
with explaination thanks
2. The bronze bar 3 m long with a cross-sectional area of 350mm2 is placed between two rigid walls. At a temperature of -20 oC, there is a gap of 2.2 mm. Find the temperature atwhich the compressive stress in the bar will be 30 MPa ifthe bar will experience:a. No tensile.b. With an tensile of 5,000 N.Use α = 18.0 x 10-6 /oC and E = 80 GPa.
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A 31 mm diameter bronze bar 3.7 m long is placed between two rigid walls. At a temperature of -39°C, the gap A = 2.3 mm. Find the temperature(at degree-Celsius) at which the compressive stress in the bar will be 40 MPa. Use a = 19.84 x 106 m/(m-°C) and E = 82 GPa. Answer in two decimal places. Numerical values only. Don't indicate units here, just on the submitted solution.