# PARAM, CK2

Bulk Data Entry Scale factor for direct input stiffness matrices.

Parameter Values Description
CK2 <Real>

Default = 1.0

CK2 specifies factors for the direct input stiffness matrix. The total stiffness matrix is:
$⌊{K}_{\mathit{jj}}⌋=⌊{K}_{\mathit{jj}}^{x}⌋+\mathit{CK}2*⌊{K}_{\mathit{jj}}^{2}⌋$
Where,
$⌊{K}_{\mathit{jj}}^{2}⌋$
Is selected in the Subcase Information command K2GG.
$⌊{K}_{\mathit{jj}}^{x}⌋$
Is generated from structural element entries in the Bulk Data section.