QUESTION 4The following figure represents a cross section through a long opening. The magnitudes of the plane componentsof the field stresses are o,= 13.75 MPa, o, = 19.25 MPa, Ty = 4.76 MPa, expressed relative to the reference axes!!shown.1. Calculate the maximum and minimum boundary stresses in the excavation perimeter, defining the locationsof the relevant points.2. If the strength of the rock mass is defined by a maximum shear strength criterlon, and the shear strength is20 MPa, estimate the extent of boundary failure, in terms of the angular range over the perimeter.

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QUESTION 4 The following figure represents a cross section through a long opening. The magnitudes of the plane c of the field stresses are o, = 13.75 MPa, o, = 19.25 MPa, Ty = 4.76 MPa, expressed relative to the ret shown.

QUESTION 4 The following figure represents a cross section through a long opening. The magnitudes of the plane c of the field stresses are o, = 13.75 MPa, o, = 19.25 MPa, Ty = 4.76 MPa, expressed relative to the ret shown.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter7: Analysis Of Stress And Strain

Section: Chapter Questions

Problem 7.4.4P: An element on the top surface of the fuel tanker in Problem 7.2-1 is in biaxial stress and is...

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Concept explainers

Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.

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