Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 28)
28.
For a given material Young's modulus is 200 GN/m2 and modulus of rigidity is 80 GN/m2. The value of Poisson's ratio is
Discussion:
24 comments Page 3 of 3.
Vikas Kumar said:
1 decade ago
Formula of poisson ratio = (E-2G)/2G.
Where E = Young's modulus.
G = Modulus of Rigidity.
Now U = (200-2*80)/2*80 = 0.25.
Where E = Young's modulus.
G = Modulus of Rigidity.
Now U = (200-2*80)/2*80 = 0.25.
Manasa Sundaram said:
1 decade ago
c = mE/2(m+1).
1+(1/m) = (2*10^5)/(2*(8*10^4)).
1+u = 1.25.
u = 0.25.
1+(1/m) = (2*10^5)/(2*(8*10^4)).
1+u = 1.25.
u = 0.25.
Rathi said:
1 decade ago
Relation between young's modulus(E), Rigidity modulus(G) and Poisson's ratio(u).
E = 2G(1+u).
u = E/2G - 1.
= 200/2*80 - 1.
u = 0.25.
E = 2G(1+u).
u = E/2G - 1.
= 200/2*80 - 1.
u = 0.25.
(1)
Nitin ingole said:
1 decade ago
Answer should be 0.25 Poisson's ration = ( E-2G )/2G = (200-2x80)/2*80 = 0.25.
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