Transcript Computer-Aided Engineering Design

Computer-Aided Engineering Design
Homework
Assignment 1
Due on September 12
1
Assignment
Problem 1
Solve example 1 using (1) two elements and (2) eight
elements. Compare your results to the exact values
Note:
The results form exact displacement
2
Y=0
0
Y=2.5
0.001027
Y=5.0
0.002213
Y=7.5
0.003615
Y=10
0.005333
Problem 1 (cont.)
w1
(Determining how much the
bar will deflect at various point
along its length when it is
subjected to the load P)
L
y
E=10.4x106 lb/in2, w1=2 in, w2=1
in, t=0.125 in, L=10 in, P=1000 lb.
W2
P
3
Assignment
Problem 2
A concrete table column-support with the profile show in the
accompanying figure is to carry a load of approximately 500
lb. Using the direct method discussed in class, determine the
deflection and average normal stresses along the column.
Divide the column into five elements (E=3.27 x 103 ksi)
500 lb
The thickness of table: 3 in.
28 in
4
9 in
1 ft
4 in