The element stiffness matrix (k) for beam element is given by which of the following expressions?
a) ( frac{EI}{l^3} begin{bmatrix}12&6l&-12&6l 6l&4l^2&-6l&2l^2 -12&-6l&12&-6l 6l&2l^2&-6l&4l^2 end{bmatrix} )

Question

TuteeHUB · Accepted Answer

(  frac{EI}{l^3}  begin{bmatrix}12&-6l&-12&6l    -6l&4l^2&6l&2l^2    -12&6l&12&6l    6l&2l^2&6l&4l^2  end{bmatrix}  )

TuteeHUB · Answer

(  frac{EI}{l^2}  begin{bmatrix}12&-6l&-12&6l    -6l&4l^2&6l&2l^2    -12&6l&12&6l    6l&2l^2&6l&4l^2  end{bmatrix}  )

TuteeHUB · Answer

(  frac{EI}{l^3}  begin{bmatrix}12&-6l&-12&6l    -6l&4l^2&6l&2l^2    -12&6l&12&6l    6l&2l^2&6l&4l^2  end{bmatrix}  )

TuteeHUB · Answer

(  frac{EI}{l^2}  begin{bmatrix}12&6l&-12&6l    6l&4l^2&-6l&2l^2    -12&-6l&12&-6l    6l&2l^2&-6l&4l^2  end{bmatrix}  )

1.	The element stiffness matrix (k) for beam element is given by which of the following expressions? a) ( frac{EI}{l^3} begin{bmatrix}12&6l&-12&6l 6l&4l^2&-6l&2l^2 -12&-6l&12&-6l 6l&2l^2&-6l&4l^2 end{bmatrix} )
A.	( frac{EI}{l^2} begin{bmatrix}12&-6l&-12&6l -6l&4l^2&6l&2l^2 -12&6l&12&6l 6l&2l^2&6l&4l^2 end{bmatrix} )
B.	( frac{EI}{l^3} begin{bmatrix}12&-6l&-12&6l -6l&4l^2&6l&2l^2 -12&6l&12&6l 6l&2l^2&6l&4l^2 end{bmatrix} )
C.	( frac{EI}{l^2} begin{bmatrix}12&6l&-12&6l 6l&4l^2&-6l&2l^2 -12&-6l&12&-6l 6l&2l^2&-6l&4l^2 end{bmatrix} )
Answer» B. ( frac{EI}{l^3} begin{bmatrix}12&-6l&-12&6l -6l&4l^2&6l&2l^2 -12&6l&12&6l 6l&2l^2&6l&4l^2 end{bmatrix} )

Discussion