Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 14, Problem 4CQ
To determine
The relative elastic modulus used by the stiffness requirement for the relative merit in weight-critical designs.
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8. If the modular ratio is equal to 11, and the
Modulus of Elasticity of the Steel is
200,000 MPa. What is the value of fc'?
Problem 2: A bronze bar is fastened between a steel bar and an aluminum bar as shown. Axial loads
are applied at the positions indicated. Find the largest value of P that will not exceed an overall
deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and
80 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling.
Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa.
Steel Bronze
480 mm² 650 mm²
3P
1.0 m
4P
2.0 m
Aluminum
320 mm²
1.5 m
2P
The critical bending compressive stress in the extreme fibre of a structural steel section is
1000 MPa. It is given that the yield strength of the steel is 250 MPa, width of flange is 250
mm and thickness of flange is 15 mm. As per the provisions of IS: 800-2007, the
nondimensional slendeness ratio of the steel crosssection is
Chapter 14 Solutions
Materials Science And Engineering Properties
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- The critical bending compressive stress in the extreme fibre of a structural steel section is 1000 MPa. It is given that the yield strength of the steel is 250 MPa, width of flange is 250 mm and thickness of flange is 15 mm. As per the provisions of IS: 800 -2007, the non-dimensional slenderness ratio of the steel cross-section is (a) 0.25 (c) 2.00 (b) 0.75 (d) 0.50arrow_forward1.arrow_forwardAs shown in the figure below, a bronze bar is affixed between a steel bar and an aluminum bar. Axial loads are applied at the positions indicated. If the largest value of P that will not exceed an overall deformation of 4.0 mm, or the following stresses: 150 MPa in the steel, 130 MPa in the bronze, and 90 MPa in the aluminum, determine the stress in the bronze. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. (The correct answer is 71.36 MPa. Can you show the solution? Thank you!)arrow_forward
- Sitti Strength Of Materials in inr The threaded bolts A and B of the same material and length are subjected to identical tensile load. If the elastic strain energy stored in bolt A is 4 times that of the bolt B and the mean diameter of bolt A is 12 mm, the mean diameter of bolt B in mm isarrow_forwardSituation No. 2 A bronze bar is fastened between a steel bar and an aluminum bar as shown below. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceed an overall deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 80 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. Bronze Steel A = 480 mm? Aluminum A = 650 mm A = 320 mm 3P 4P 2P 1.0 m 2.0 m 1.5 marrow_forwarda. Which of the following gives the approximate modulus elasticity of the The stress-strain diagram for a steel alloy having an original diam. of 12 mm and a material? gauge length of 50 mm is given in the figure. b. Which of the following gives the load on the specimen that causes yielding? c. Which of the following gives the ultimate load the specimen will (8) MPa ultimate strength- 80 support? 70 60 repture' strength yäerd põint- 50+ 40 propórtional limit 30 20+ 10+ 0 .0005 .001.0015 .002 .0025 .003 .0035 E(mm/mm)arrow_forward
- I need the answer as soon as possiblearrow_forward2. The materials that have low values of tensile strain * concrete steel Aluminum O Brass O All above are correctarrow_forwardA strip of high-strength steel has a length of 30 cm and a cross section of 1 mm by 20 mm. The modulus of elasticity is 200 GPa and Poison’s ratio is 0.27. It is subjected to an axial load of 15000 N, and it is instrumented with two axial strain gauges with R= 120 Ω and a gauge factor of 2.10. The two fixed resistors are also 120 Ω, and the supply voltage is 2.5 V. The bridge is adjusted to zero voltage output before load is applied. Find the output of the bridge with load applied.arrow_forward
- As shown in the figure below, a bronze bar is affixed between a steel bar and an aluminum bar. Axial loads are applied at the positions indicated. If the largest value of P that will not exceed an overall deformation of 4.0 mm, or the following stresses: 150 MPa in the steel, 130 MPa in the bronze, and 90 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. determine the stress in the bronze, steel, and aluminumarrow_forwardThe typical Young's modulus of steel is A 275 -310 GPa B 145 - 170 GPa c 195 - 210 GPa D) 225 - 240 GPaarrow_forward5. A bronze bar is fastened between a steel bar and an aluminum bar as shown in Figure 5. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceed an overall deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 80 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. Steel A = 480 mm² 1.0 m Bronze A = 650 mm² 3P 4P 2.0 m FIGURE 5 Aluminum A = 320 mm² 1.5 m 2Parrow_forward
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