Simulation based design please help and do all three parts. If possible identify
ID: 1842172 • Letter: S
Question
Simulation based design please help and do all three parts.If possible identify which book is it taken from! strong 1 1 Norma. Emphasis Heading Subtitle Styles Paragraph Question 3: 1. The coordinates of Node 1, 2 A triangle element with 3 nodes is shown in the figure of and 3 are (0, 1), (0, 0) and (1,00, respectively. The deflections along xand y axis Nodes 1, 2, 3 are (uh,v1),(u2,v2) and (u,,v), respectively. deflection functions of (1) Try to use the nodal deflections ofthese 3 nodes to build this triangle element, that is, u(x,y) and v(x,y). Hints: Assume u x,y) and v(x,y) are a linear function of x and y, that is, a box+ cy Then use the deflections of 3 nodes to determine a, b and c. (2) Express the deflection functions u(x, y) and (x, y) by shape functions. o, calculate the strain 0.02, v 0) and (u 0, 0.01), 0, Em and E at point (0.5,0.5) av(x, y) Qu(x, y) Hints: use equations E E Node 1 (ur vo (0,1) Node 3 (u, v (0.0) Node 2 (u, Figure 1 A 3 node triangle element
Explanation / Answer
solution:
1)for given system we have following data as follows
for poit 1
A(0,1),u1=0,v1=0.01
B(0,0),u2=0,v2=0
C(1,0),u3=0.02,v3=0
here for x direction deflection function is given by
u=a+bx+cy
putting three condition we get three equation as
a+c=0
a=0
a+b=.02
solving we get that
a=0,b=.02,c=0
sofunction as u(x,y)=.02x
for y direction deflection we have that
V=a+bx+cy
0.01=a+c
0=a
0=a+b
from this we get that
a=0,b=0,c=.01
v(x,y)=.01y
so two equation are
u=.02x
v=.01y
3)where strain is given by
exx=du/dx=.02
eyy=dv/dy=.01
4)where shape function in 2 D is given by
u=N1u1+N2u2+N3u3