(a) We described the stress-strain relationship: [sigma ]=[D][epsi ], and the D can be either planestress or plane-strain. Please determine plane-stress or plane-strain from the following matrices.
[D]=(E)/((1+v)(1-2v))[[1-v,v,0,1-v,0
0,0,(1-2v)/(2)]]
0
v
[D]=(E)/(1-v^(2))[[1,v,0,1,0,0,(1-v)/(2)]]
0
v
a) We described the stress--strain relationship: []-[D][&], and the [D] can be either plane stress or plane-strain. Please determine plane-stress or plane-strain from the following matrices.
E
[D]= 1+v12v)
(5%)
4
D
(5%)