Note- Dislike for wrong answers , Please solve this correctly and accurately A 7,607 Ib force (Q) is applied over a circular rigid plate of radius (r) 5 inches sitting on an elastic two-layer system, as shown in the figure.rE,E,Assuming the two layers to be incompressible, and knowing that the thickness of the first layer (h) is 10 in,the Young's modulus of the second layer (E2) is 4,000 psi, and the measured surface deflection (w) is0.01 in, determine:1. The Young's modulus of layer 12. If only a lower quality asphalt concrete is available (E, = 400,000 psi), what should h1 be increased toin order to attain the same 0.01 in surface deflection?

According to given dataA 7607 lb force Q is applied on a circular plate of radius r=5inchesThickness…

Answered: A 7,607 Ib force (Q) is applied over a…

A 7,607 Ib force (Q) is applied over a circular rigid plate of radius (r) 5 inches sitting on an elastic two- layer system, as shown in the figure.

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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Note- Dislike for wrong answers , Please solve this correctly and accurately

A 7,607 Ib force (Q) is applied over a circular rigid plate of radius (r) 5 inches sitting on an elastic two-
layer system, as shown in the figure.
r
E,
E,
Assuming the two layers to be incompressible, and knowing that the thickness of the first layer (h) is 10 in,
the Young's modulus of the second layer (E2) is 4,000 psi, and the measured surface deflection (w) is
0.01 in, determine:
1. The Young's modulus of layer 1
2. If only a lower quality asphalt concrete is available (E, = 400,000 psi), what should h1 be increased to
in order to attain the same 0.01 in surface deflection?

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