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.
Roy said:
8 years ago
B is the right answer.
Phani said:
7 years ago
(Kg-m/s^2)*1/m = kg/s^2 = MT^-2.
S K Jha said:
5 years ago
EI = Nm2 = MLT-2 x L2 = ML3T-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
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