4. In a plane wave front, the pressures in the plane of the wave front are v/(1-v) times the pressure normal to the wave front. What is the least value of Poisson's ratio (v) such that compressive or shear failure does not occur as the wave front sweeps through the rock? (See Problem 3.)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Please answer question 4?
1=0.1086
9.2
5
28
= 0.1786
9.5
48.7
15
74
= 0.1931
= 0.2027
1300=0.26
5000
The principal ratio (3) failure can't
ण
occurs will be the
at
от
minumum value
From the test 1,2,3,4,5 s
=0.1086
Transcribed Image Text:1=0.1086 9.2 5 28 = 0.1786 9.5 48.7 15 74 = 0.1931 = 0.2027 1300=0.26 5000 The principal ratio (3) failure can't ण occurs will be the at от minumum value From the test 1,2,3,4,5 s =0.1086
3. For the rock of Problems 1 and 2, what is the value of the principal stress
ratio (0₂/0₁) above which "failure" cannot occur?
4. In a plane wave front, the pressures in the plane of the wave front are
v/(1-v) times the pressure normal to the wave front. What is the least
value of Poisson's ratio (v) such that compressive or shear failure does not
occur as the wave front sweeps through the rock? (See Problem 3.)
The answer to question 3 is attached. Please solve question 4. Thank you
Transcribed Image Text:3. For the rock of Problems 1 and 2, what is the value of the principal stress ratio (0₂/0₁) above which "failure" cannot occur? 4. In a plane wave front, the pressures in the plane of the wave front are v/(1-v) times the pressure normal to the wave front. What is the least value of Poisson's ratio (v) such that compressive or shear failure does not occur as the wave front sweeps through the rock? (See Problem 3.) The answer to question 3 is attached. Please solve question 4. Thank you
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