The figure shows the stress-strain curve for a material. The scale of the stress axis is set by s = 300, in units of 106 N/m². What are (a) the Young's modulus and (b) the approximate yield strength for this material? Assume ε = 0.0080. Stress (106 N/m²) (a) Number i Units (b) Number i Units 0 E Strain 28

The figure shows the stress-strain curve for a material. The scale of the stress axis is set by s = 300, in units of 106 N/m². What are (a) the Young's modulus and (b) the approximate yield strength for this material? Assume ε = 0.0080. Stress (106 N/m²) (a) Number i Units (b) Number i Units 0 E Strain 28

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 16CQ: Review the relationship between stress and strain. Can you find any similarities between the two...

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Alarge uniform cylindrical steel rod of density =7.8g/cm3 is 2.0 m long and has a diameter of 5.0 cm. the rod is fastened to a concrete floor with its long axis vertical.what is the normal stress in the rod at the cross-section located at (a)1.0 mfrom its lower end?(b)1.5 m from the lower end?
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The lintel of prestressed reinforced concrete in Figure P12.27 is 1.50 m long. The concrete encloses one steel reinforcing rod with cross-sectional area 1.50 cm2. The rod joins two strong end plates. The cross-sectional area of the concrete perpendicular to the rod is 50.0 cm2. Youngs modulus for the concrete is 30.0 109 N/m2. After the concrete cures and the original tension T1 in the rod is released, the concrete is to be under compressive stress 8.00 106 N/m2. (a) By what distance will the rod compress the concrete when the original tension in the rod is released? (b) What is the new tension T2 in the rod? (c) The rod will then be how much longer than its unstressed length? (d) When the concrete was poured, the rod should have been stretched by what extension distance from its unstressed length? (e) Find the required original tension T1 in the rod. Figure P12.27
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