7.3-17 The stresses at a point along a beam sup- porting a sign (see figure) are o = 2250 psi, = 1175 psi, and 7xy :-820 psi. σy (a) Find the principal stresses. Show them on a sketch of a properly oriented element. (b) Find the maximum shear stresses and associated normal stresses. Show them on a sketch of a properly oriented element. Mona's office = PROBLEM 7.3-17 Oy Ţ x Grandpa/Shutterstock.com 7.3-26 An element in plane stress on the surface of an automobile drive shaft (see figure) is subjected to stresses of σ = -45 MPa and 7xy = 39 MPa (see figure). It is known that one of the principal stresses equals 41 MPa in tension. (a) Determine the stress o,. (b) Determine the other principal stress and the orientation of the principal planes, then show the principal stresses on a sketch of a properly oriented element. PROBLEM 7.3-26 T 139 MPa 45 MPa
7.3-17 The stresses at a point along a beam sup- porting a sign (see figure) are o = 2250 psi, = 1175 psi, and 7xy :-820 psi. σy (a) Find the principal stresses. Show them on a sketch of a properly oriented element. (b) Find the maximum shear stresses and associated normal stresses. Show them on a sketch of a properly oriented element. Mona's office = PROBLEM 7.3-17 Oy Ţ x Grandpa/Shutterstock.com 7.3-26 An element in plane stress on the surface of an automobile drive shaft (see figure) is subjected to stresses of σ = -45 MPa and 7xy = 39 MPa (see figure). It is known that one of the principal stresses equals 41 MPa in tension. (a) Determine the stress o,. (b) Determine the other principal stress and the orientation of the principal planes, then show the principal stresses on a sketch of a properly oriented element. PROBLEM 7.3-26 T 139 MPa 45 MPa
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 7.3.26P: An element in plane stress on the surface of an automobile drive shaft (see figure) is subjected to...
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![7.3-17 The stresses at a point along a beam sup-
porting a sign (see figure) are o = 2250 psi,
σ, = 1175 psi, and 7 xy = -820 psi.
(a) Find the principal stresses. Show them on a
sketch of a properly oriented element.
(b) Find the maximum shear stresses and associated
normal stresses. Show them on a sketch of a
properly oriented element.
Mona's office
PROBLEM 7.3-17
Oy
X
Grandpa/Shutterstock.com
7.3-26 An element in plane stress on the surface of
an automobile drive shaft (see figure) is subjected to
stresses of σ = -45 MPa and 7xy = 39 MPa (see
figure). It is known that one of the principal stresses
equals 41 MPa in tension.
(a) Determine the stress o
(b) Determine the other principal stress and the
orientation of the principal planes, then show
the principal stresses on a sketch of a properly
oriented element.
PROBLEM 7.3-26
139 MPa
45 MPa](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fab872bdf-f8ac-41a0-8cce-462476e44909%2F2d8f8ee5-0073-4c0b-a489-e27a895aff68%2Fqns4s85_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7.3-17 The stresses at a point along a beam sup-
porting a sign (see figure) are o = 2250 psi,
σ, = 1175 psi, and 7 xy = -820 psi.
(a) Find the principal stresses. Show them on a
sketch of a properly oriented element.
(b) Find the maximum shear stresses and associated
normal stresses. Show them on a sketch of a
properly oriented element.
Mona's office
PROBLEM 7.3-17
Oy
X
Grandpa/Shutterstock.com
7.3-26 An element in plane stress on the surface of
an automobile drive shaft (see figure) is subjected to
stresses of σ = -45 MPa and 7xy = 39 MPa (see
figure). It is known that one of the principal stresses
equals 41 MPa in tension.
(a) Determine the stress o
(b) Determine the other principal stress and the
orientation of the principal planes, then show
the principal stresses on a sketch of a properly
oriented element.
PROBLEM 7.3-26
139 MPa
45 MPa
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