A steel cantilever beam, of length 2L, has an l-section, see Figure Q3. The cantilever beam is under a uniformly distributed load q = 175 kN/m applied in its vertical plane of symmetry at OA part of the span. The yield strength of the steel is [a] = 440 MPa; the Young's modulus E = 250 GPa. L=1m and the coordinates of Point H are x= 0 mm, y = -80 mm, Z= 0 mm. O b) L q A L B X Figure Q3 20mm 10mm H 20mm The von Mises equivalent stresses at point H can be calculated as -220mm b 180mm a) The factors of safety predicted at point H by the maximum shear stress theory of failure (Tresca criterion) MPa c) The factors of safety at point H predicted by the maximum-distortion-energy theory (von Mises criterion) can be calculated as
A steel cantilever beam, of length 2L, has an l-section, see Figure Q3. The cantilever beam is under a uniformly distributed load q = 175 kN/m applied in its vertical plane of symmetry at OA part of the span. The yield strength of the steel is [a] = 440 MPa; the Young's modulus E = 250 GPa. L=1m and the coordinates of Point H are x= 0 mm, y = -80 mm, Z= 0 mm. O b) L q A L B X Figure Q3 20mm 10mm H 20mm The von Mises equivalent stresses at point H can be calculated as -220mm b 180mm a) The factors of safety predicted at point H by the maximum shear stress theory of failure (Tresca criterion) MPa c) The factors of safety at point H predicted by the maximum-distortion-energy theory (von Mises criterion) can be calculated as
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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![A steel cantilever beam, of length 2L, has an l-section, see Figure Q3. The cantilever beam is under
a uniformly distributed load q = 175 kN/m applied in its vertical plane of symmetry at OA part of the
span. The yield strength of the steel is [a] = 440 MPa; the Young's modulus E = 250 GPa. L=1m
and the coordinates of Point H are x= 0 mm, y = -80 mm, z= 0 mm.
b)
O
d)
L
q
A
L
Deflection -
Rotation -
B
X
Figure Q3
20mm
10mm H
20mm
The von Mises equivalent stresses at point H can be calculated as
ул
a)
The factors of safety predicted at point H by the maximum shear stress theory of failure (Tresca
criterion)
-220mm
b
180mm
c)
The factors of safety at point H predicted by the maximum-distortion-energy theory (von Mises
criterion) can be calculated as
MPa
By use of the virtual work method, determine the rotation and deflection at the end B.
mm (Downward deflection is negative)
x 10-3 radians (Positive rotation is in the anticlockwise direction)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9cdd370b-5686-42c3-97c3-60b5b2c682b0%2Fcdf94810-59e2-44a9-a729-f7b9f47645bf%2Fdx6bcv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A steel cantilever beam, of length 2L, has an l-section, see Figure Q3. The cantilever beam is under
a uniformly distributed load q = 175 kN/m applied in its vertical plane of symmetry at OA part of the
span. The yield strength of the steel is [a] = 440 MPa; the Young's modulus E = 250 GPa. L=1m
and the coordinates of Point H are x= 0 mm, y = -80 mm, z= 0 mm.
b)
O
d)
L
q
A
L
Deflection -
Rotation -
B
X
Figure Q3
20mm
10mm H
20mm
The von Mises equivalent stresses at point H can be calculated as
ул
a)
The factors of safety predicted at point H by the maximum shear stress theory of failure (Tresca
criterion)
-220mm
b
180mm
c)
The factors of safety at point H predicted by the maximum-distortion-energy theory (von Mises
criterion) can be calculated as
MPa
By use of the virtual work method, determine the rotation and deflection at the end B.
mm (Downward deflection is negative)
x 10-3 radians (Positive rotation is in the anticlockwise direction)
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Step 1: Write the given data and what is to find
VIEWStep 2: Calculate reaction force maximum shear force, maximum and minimum moment:
VIEWStep 3: Calculate moment of inertia about z axis and maximum and minimum bending stress at H:
VIEWStep 4: Calculate shear stress at H and principal stresses at H:
VIEWStep 5: Calculate FOS according to Tressca criteria and von mises criteria:
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