The stresses acting on element A on the web of a train rail (see figure part a) are found to be 44 MPa tension in the horizontal direction and 141 MPa compression in the vertical direction. Also, shear stresses of magnitude 45 MPa act in the directions shown (see figure part b). 141 MPa B A 44 MPa A Cross Side Section View 45 MPa (a) (b) Determine the stresses acting on an element oriented at a counterclockwise angle of 51° from the horizontal. (a) Determine the stress oz, . MPa (Round to one decimal place.) (b) Determine the stress T, MPa (Round to one decimal place.) (C) Determine the stress oy, - MPa (Round to one decimal place.) (d) Show these stresses on a sketch of an element oriented at this angle. Choose the correct sketch.

The stresses acting on element A on the web of a train rail (see figure part a) are found to be 44 MPa tension in the horizontal direction and 141 MPa compression in the vertical direction. Also, shear stresses of magnitude 45 MPa act in the directions shown (see figure part b). 141 MPa B A 44 MPa A Cross Side Section View 45 MPa (a) (b) Determine the stresses acting on an element oriented at a counterclockwise angle of 51° from the horizontal. (a) Determine the stress oz, . MPa (Round to one decimal place.) (b) Determine the stress T, MPa (Round to one decimal place.) (C) Determine the stress oy, - MPa (Round to one decimal place.) (d) Show these stresses on a sketch of an element oriented at this angle. Choose the correct sketch.

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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Concept explainers

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

The stresses acting on element A on the web of a train rail (see figure part a) are found to be 44 MPa
tension in the horizontal direction and 141 MPa compression in the vertical direction. Also, shear stresses
of magnitude 45 MPa act in the directions shown (see figure part b).
141 MPa
A
44 MPa
A
Cross
Side
Section
View
45 MPa
(a)
(b)
Determine the stresses acting on an element oriented at a counterclockwise angle of 51° from the
horizontal.
(a) Determine the stress oz, .
MPa (Round to one decimal place.)
(b) Determine the stress T,
MPa (Round to one decimal place.)
(C) Determine the stress oy, .
MPa (Round to one decimal place.)
(d) Show these stresses on a sketch of an element oriented at this angle.
Choose the correct sketch.

85.2 MPa
111.7 MPa
0- 51°
A.
14.7 MPa
81.1 MPa
111.7 MPa
В.
0- 51°
14.7 MPa
14.7 MPа
111.7 MPa
C.
0- 51°
81.1 MPa
85.2 MPа
134.1 MPа
D.
0 = 51°
14.7 MPа
The correct answer is -Select- v

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