q19At a point in a two dimensional stress system, the normal stress on two mutually perpendicular planes are o and o and shear stress is t One of the principal stresses will become zero when the value of shear stress ty is (a) +(0 o) (b) t/o, xx-Oy XX (c) +o 6 yy (d) t/oo, XXyy xx

q19At a point in a two dimensional stress system, the normal stress on two mutually perpendicular planes are o and o and shear stress is t One of the principal stresses will become zero when the value of shear stress ty is (a) +(0 o) (b) t/o, xx-Oy XX (c) +o 6 yy (d) t/oo, XXyy xx

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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Solid Mechanics

Engineering mechanics is a branch of science that deals with forces causing bulk motion in bodies and the effect that these forces cause on the bodies. Engineering mechanics does not deal with the internal changes that occur on account of these external forces. The internal effects in a body or a material under the action of external forces are studied in a new branch of science called solid mechanics, the strength of materials, or the mechanical behavior of engineering materials.

Question

q10At a point in a two dimensional stress system, the normal stress on two mutually
perpendicular planes are o and o and shear stress is t One of the principal stresses
will become zero when the value of shear stress
Txy
is
(a) ±(0)
(c) ±/0 +0yy
(d) +/oo
yy

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