QUESTION 2 Which of the following sets of vectors represent valid principal stress directions? [0,1,0] and [0.5,0,0] O [1,1,1] and [0,0,1) [0.5,0.5,0] and [1,2,3] [1,0,0] and [0,1,0] QUESTION 3 The stress vector and unit normal vector are the same vector with different magnitudes. Always True Always False Conditionally True QUESTION 4 If the principal stresses are known, then any corresponding shear stress can be found. True False Conditionally True QUESTION 5 If the stress components are known in one orientation, are you able to find the stress components acting in another orientation? O Yes No

QUESTION 2 Which of the following sets of vectors represent valid principal stress directions? [0,1,0] and [0.5,0,0] O [1,1,1] and [0,0,1) [0.5,0.5,0] and [1,2,3] [1,0,0] and [0,1,0] QUESTION 3 The stress vector and unit normal vector are the same vector with different magnitudes. Always True Always False Conditionally True QUESTION 4 If the principal stresses are known, then any corresponding shear stress can be found. True False Conditionally True QUESTION 5 If the stress components are known in one orientation, are you able to find the stress components acting in another orientation? O Yes No

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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Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

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