I need the answer as soon as possible If a material has identical elastic properties in alldirections, it is said to be(b) isotropic(d) homogeneous(a) elastic(c) orthotropic

If a material has identical elastic properties in all direction it is said to be isotropic material…

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Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter6: Introduction To Mechanical Properties

Section: Chapter Questions

Problem 14CQ

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Stresses that cause change in volume are called (A) hydrostatic stresses (B) deviatoric stresses C) tensile stress D) bending stress
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Two bars of different materials and same size are subjected to the same tensile force. If the bars have unit elongation in the ratio 2: 5, then the ratio of modulus of elasticity of the two materials will be (a) 2:5 (c) 4 :3 (b) 5:2 (d) 3:4
A cylindrical polymer with a diameter of 10nm when stress is applied to it and a change in diameter of 0.0025nm is equal. If you know that the polymer is completely elastic and the modulus of elasticity is 97Gps, what is the amount of elongation in the direction of the x-axis
A specimen of steel has a rectangular cross section 20 mm wide and 40 mm thick, an elastic modulus of 207 GPa, and a Poisson's ratio of 0.30. If this specimen is pulled in tension with a force of 60,000 N, what is the change in width if deformation is totally elastic? O Increase in width of 3.62 x 10-6 m O Decrease in width of 7.24 x 10-6 m Increase in width of 7.24 x 106 m O Decrease in width of 2.18 x 10-6 m
An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 740 mm. The cross-sectional dimensions of the beam are b1= 35 mm, d1= 101 mm, b2 = 21 mm, d2 21 mm, and a = 7 mm. For this material, the allowable tensile bending stress is 13 MPa, and the allowable compressive bending stress is 13 MPa. Determine the largest moment M that can be applied as shown to the beam. %3D b2 M. d2 di 14 L. b1 Answer: N-m M = %3D
The material returns to its original shape when the load is removed. (A Elastic Limit B Elastic Behavior Limit c) Maximum Limit D D Proportional Limit
An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 900 mm. The cross- sectional dimensions of the beam are by = 37 mm, d1 = 88 mm, b2 = 22 mm, d2 = 22 mm, and a = 7.5 mm. For this material, the allowable tensile bending stress is 18 MPa, and the allowable compressive bending stress is 14 MPa. Determine the largest moment M that can be applied as shown to the beam.
An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 900 mm. The cross-sectional dimensions of the beam are b1 = 37 mm, d1 = 88 mm, b2 = 22 mm, d2 = 22 mm, and a = 7.5 mm. For this material, the allowable tensile bending stress is 18 MPa, and the allowable compressive bending stress is 14 MPa. Determine the largest moment M that can be applied as shown to the beam.
An aluminum alloy [E = 70 GPa; v = 0.33; a = 23.0×10-6/°C] bar is subjected to a tensile load P. The bar has a depth of d = 260 mm, a cross-sectional area of A = 14720 mm2, and a length of L = 5.5 m. The initial longitudinal normal strain in the bar is zero. After load P is applied and the temperature of the bar has been increased by AT = 46°C, the longitudinal normal strain is found to be 1680 µɛ. % D Calculate the change in bar depth d after the load P has been applied and the temperature has been increased. L P Answer: Ad = i mm
An extruded polymer beam is subjected to a bending moment M. The length of the beam is L= 620 mm. The cross-sectional dimensions of the beam are b = 37 mm, d1 = 80 mm, b2 = 22 mm, d2 = 22 mm, and a = 7.5 mm. For this material, the allowable tensile bending stress is 12 MPa, and the allowable compressive bending stress is 11 MPa. Determine the largest moment M that can be applied as shown to the bearn. b, a M d2 d | 4 B b1 Answer: M = i N-m
An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 560 mm. The cross-sectional dimensions of the beam are b1 = 32 mm, d1 = 118 mm, b2 = 19 mm, d2 = 19 mm, and a = 6.5 mm. For this material, the allowable tensile bending stress is 14 MPa, and the allowable compressive bending stress is 13 MPa. Determine the largest moment M that can be applied as shown to the beam. b2 a M d2 | A В b1 Answer: M = i N-m

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If a material has identical elastic properties in all directions, it is said to be (a) elastic (c) orthotropic (b) isotropic (d) homogeneous