U The confining pressure (o3) is progressively increased to break the sample subjected to uniform principal stresses (ol = o2). When initially loaded, the rock specimen compresses and then begins to dilate as a result of internal fracturing. When the water pressure increases, there is a transition from ductile to brittle behavior. When the confining pressure decreases, the behavior changes from strain- softening to strain-hardening.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Select all true statements. In triaxial loading:
U The confining pressure (o3) is progressively increased to break the sample
subjected to uniform principal stresses (ol = o2).
When initially loaded, the rock specimen compresses and then begins to dilate
as a result of internal fracturing.
When the water pressure increases, there is a transition from ductile to brittle
behavior.
When the confining pressure decreases, the behavior changes from strain-
softening to strain-hardening.
Transcribed Image Text:Select all true statements. In triaxial loading: U The confining pressure (o3) is progressively increased to break the sample subjected to uniform principal stresses (ol = o2). When initially loaded, the rock specimen compresses and then begins to dilate as a result of internal fracturing. When the water pressure increases, there is a transition from ductile to brittle behavior. When the confining pressure decreases, the behavior changes from strain- softening to strain-hardening.
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