force in BD=25KN b.    vertical reaction at point C=-10KN c.    horizontal reaction at point C=15KN d.    resultant of reaction at point C=18.0KN e.    allowable tensile (normal) stress in m

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Problem 1.1MA
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Given:
a.    the force in BD=25KN
b.    vertical reaction at point C=-10KN
c.    horizontal reaction at point C=15KN
d.    resultant of reaction at point C=18.0KN
e.    allowable tensile (normal) stress in member BD =83.33MPa
f.    the allowable shear stress in the pin at C =72.7MPa
Please help me solve for:
1.    What is the required cross-section area and minimum thickness t of member BD?
2.    What is the required SHEAR cross-section area at point C?
3.    What is the minimum diameter for the pin at C?
(Solve for a value with the combination of mm and N)

Shown below is an idealization of a structure in which member fiD is a metal bar of width b - 25-
mm. Member BD is pin connected at both ends as shown The Yield strength of the material for BD
is SIGMA-yield - 250 MPa and the ultimate shear strength of the material for the pin at C, TAU-
ultimate 240 MPa. The factor of safety against yielding failure of member BD is FS-3.0. The
factor of safety against ultimate shear failure at the pin at C is FS-3.3. We will be able to design the
bar BD (determine thickness t) and the pin at C (determine the diameter of the pin) by answering the
questions asked
Parameters P-10 kN, L-3-m and h-2-m
t = thickness-
L/2
B
L/2
dot
View a-a
C
Transcribed Image Text:Shown below is an idealization of a structure in which member fiD is a metal bar of width b - 25- mm. Member BD is pin connected at both ends as shown The Yield strength of the material for BD is SIGMA-yield - 250 MPa and the ultimate shear strength of the material for the pin at C, TAU- ultimate 240 MPa. The factor of safety against yielding failure of member BD is FS-3.0. The factor of safety against ultimate shear failure at the pin at C is FS-3.3. We will be able to design the bar BD (determine thickness t) and the pin at C (determine the diameter of the pin) by answering the questions asked Parameters P-10 kN, L-3-m and h-2-m t = thickness- L/2 B L/2 dot View a-a C
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