Apply the boundary conditions and specified forces to your global stiffness system of equations and solve for the displacements. Consider the truss made of 2 bars with lengths 1 m, orientated in the structure shown in Figure 1. The two bars have the same cross-sectional areas A = 5·10-4 m² and modulus of elasticity E = 2·10¹¹ N/m². 10 kN is applied in the x-direction at node 1. A force of F1,x = 850 P 2 = 90° 2 AE L 1 1m 3 1m F1,x = 10KN Figure 1: Truss assembly formed of two bars. Nodes and bars are numbered, with bars numbered with underlines. X a) Using the numbering system of nodes and bars shown in Figure 1, state the 2 local stiffness matrices for each bar and combine these into a global stiffness system for all nodal displacements of the truss. Use the matrix system given in Eq. 1 below relating the local displacements of a single bar to the local forces applied to its nodes. fix fiy fjx fjy Here C = cos(0) and S = sin(0), where is the angle of orientation of the bar. CS -C² -CS C² CS S² -CS -S² -C² -CS C² -CS -S² CS CS S² R Wi Vi U j (1)
Apply the boundary conditions and specified forces to your global stiffness system of equations and solve for the displacements. Consider the truss made of 2 bars with lengths 1 m, orientated in the structure shown in Figure 1. The two bars have the same cross-sectional areas A = 5·10-4 m² and modulus of elasticity E = 2·10¹¹ N/m². 10 kN is applied in the x-direction at node 1. A force of F1,x = 850 P 2 = 90° 2 AE L 1 1m 3 1m F1,x = 10KN Figure 1: Truss assembly formed of two bars. Nodes and bars are numbered, with bars numbered with underlines. X a) Using the numbering system of nodes and bars shown in Figure 1, state the 2 local stiffness matrices for each bar and combine these into a global stiffness system for all nodal displacements of the truss. Use the matrix system given in Eq. 1 below relating the local displacements of a single bar to the local forces applied to its nodes. fix fiy fjx fjy Here C = cos(0) and S = sin(0), where is the angle of orientation of the bar. CS -C² -CS C² CS S² -CS -S² -C² -CS C² -CS -S² CS CS S² R Wi Vi U j (1)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
can you help me answer this question please, (the secone image) using figure 1? thank you
![Apply the boundary conditions and specified forces to your global stiffness system of equations
and solve for the displacements.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5f7fd42a-4300-4da8-8f14-b18670105553%2F75433250-dfd8-467e-b239-30c16d1784a8%2Fujtp3zb_processed.png&w=3840&q=75)
Transcribed Image Text:Apply the boundary conditions and specified forces to your global stiffness system of equations
and solve for the displacements.
![Consider the truss made of 2 bars with lengths 1 m, orientated in the structure shown in Figure 1. The
two bars have the same cross-sectional areas A = 5·10-4 m² and modulus of elasticity E = 2·10¹¹ N/m².
10 kN is applied in the x-direction at node 1.
A force of F1,x
=
850
P
2
=
90°
2
AE
L
1
1m
3
1m
F1,x = 10KN
Figure 1: Truss assembly formed of two bars. Nodes and bars are numbered, with bars numbered
with underlines.
X
a) Using the numbering system of nodes and bars shown in Figure 1, state the 2 local stiffness matrices
for each bar and combine these into a global stiffness system for all nodal displacements of the
truss. Use the matrix system given in Eq. 1 below relating the local displacements of a single bar
to the local forces applied to its nodes.
fix
fiy
fjx
fjy
Here C = cos(0) and S = sin(0), where is the angle of orientation of the bar.
CS -C² -CS
C²
CS S² -CS -S²
-C² -CS C²
-CS -S² CS
CS
S²
R
Wi
Vi
U j
(1)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5f7fd42a-4300-4da8-8f14-b18670105553%2F75433250-dfd8-467e-b239-30c16d1784a8%2Fvvg6m7f_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the truss made of 2 bars with lengths 1 m, orientated in the structure shown in Figure 1. The
two bars have the same cross-sectional areas A = 5·10-4 m² and modulus of elasticity E = 2·10¹¹ N/m².
10 kN is applied in the x-direction at node 1.
A force of F1,x
=
850
P
2
=
90°
2
AE
L
1
1m
3
1m
F1,x = 10KN
Figure 1: Truss assembly formed of two bars. Nodes and bars are numbered, with bars numbered
with underlines.
X
a) Using the numbering system of nodes and bars shown in Figure 1, state the 2 local stiffness matrices
for each bar and combine these into a global stiffness system for all nodal displacements of the
truss. Use the matrix system given in Eq. 1 below relating the local displacements of a single bar
to the local forces applied to its nodes.
fix
fiy
fjx
fjy
Here C = cos(0) and S = sin(0), where is the angle of orientation of the bar.
CS -C² -CS
C²
CS S² -CS -S²
-C² -CS C²
-CS -S² CS
CS
S²
R
Wi
Vi
U j
(1)
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