Wednesday 11 April 2012

Importance of stiffness matrix


For structural analysis stiffness is very important property. Equation for linear static analysis is [F]=[K][D]. Force is usually known, displacement unknown& stiffness is characteristic property of element. This means if we formulate stiffness matrix for a given shape like line or quadrilateral or tetrahedron then analysis of any geometry could be performed by meshing it and then solving the equation F=KD.

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