Civil Engineering - GATE Exam Questions - Discussion
Discussion Forum : GATE Exam Questions - Section 4 (Q.No. 33)
33.
The dimensions for the flexural rigidity of a beam element in mass (M), length (L) and time (T) is given by
Discussion:
14 comments Page 2 of 2.
Sahil Chavda said:
5 years ago
In a beam, the flexural rigidity (EI) varies along the length as a function of x as shown in the equation:
Where E is the young's modulus (in Pasual, Pa), I is the second moment of area (in m4). Y is the traverse displacement of the beam x and M(x) is the bending moment at x. The SI unit of flexural rigidity is thus Pa. m4 or Nm4.
So, the Dimension is ML3T-2
Where E is the young's modulus (in Pasual, Pa), I is the second moment of area (in m4). Y is the traverse displacement of the beam x and M(x) is the bending moment at x. The SI unit of flexural rigidity is thus Pa. m4 or Nm4.
So, the Dimension is ML3T-2
Khan said:
4 years ago
E = N/m^2 & I= m^4.
EI = N-m^2,
N = Kg-m/s^2,
EI = (Kg-m/s^2)*(m^2),
EI = Kg-m^3/s^2= ML^3S^-2.
EI = N-m^2,
N = Kg-m/s^2,
EI = (Kg-m/s^2)*(m^2),
EI = Kg-m^3/s^2= ML^3S^-2.
(1)
Nabam nikam said:
3 years ago
I think Option B is the right answer.
(3)
Nabam nikam said:
3 years ago
My answer is option. B i,e ML^3T^-2.
(2)
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