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Two conventional CD triaxial compression tests were conducted on a dense angular dry sand at the same void ratio. Test A had a confining pressure of 100 kPa, while in test B the confining pressure

Two conventional CD triaxial compression tests were conducted on a dense angular dry sand at the same void ratio. Test A had a confining pressure of 100 kPa, while in test B the confining pressure

Structural Analysis
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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Please answer this question, it is there in the text books, and I think you can obtain the answer, in case you could not solve it. (Important)

Two conventional CD triaxial compression tests were conducted on a dense angular dry sand at the same void ratio. Test A had a confining pressure of 100 kPa, while in test B the confining pressure was 400 kPa; these stresses were held constant throughout the test. At failure, tests A and B had maximum principal stress differences of 400 and 1700 kPa, respectively. (a) Plot the Mohr circles for both tests at initial conditions and at failure. (b) Assuming c = 0, determine o. (c) What is the shear stress on the failure plane at failure for both tests? (d) Determine the theoretical orientation of the failure plane in each specimen. (e) What is the orientation of the plane of maximum obliquity?
Transcribed Image Text:Two conventional CD triaxial compression tests were conducted on a dense angular dry sand at the same void ratio. Test A had a confining pressure of 100 kPa, while in test B the confining pressure was 400 kPa; these stresses were held constant throughout the test. At failure, tests A and B had maximum principal stress differences of 400 and 1700 kPa, respectively. (a) Plot the Mohr circles for both tests at initial conditions and at failure. (b) Assuming c = 0, determine o. (c) What is the shear stress on the failure plane at failure for both tests? (d) Determine the theoretical orientation of the failure plane in each specimen. (e) What is the orientation of the plane of maximum obliquity?
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