Symmetry of Tangent Stiffness Matrices of 3D Elastic Frame

Nonlinear inelastic static analysis of plane frames with numerically generated tangent stiffness matrices

For the nonlinear analysis of structures using the well known Newton-Raphson Method, the tangent stiffness matrices of the elements must be constructed in each iteration. Due to the high expense required to find the exact tangent stiffness matrices, researchers have developed novel innovations into the Newton-Raphson method to reduce the cost and time required by the analysis. In this paper, a ...

nonlinear inelastic static analysis of plane frames with numerically generated tangent stiffness matrices

for the nonlinear analysis of structures using the well known newton-raphson method, the tangent stiffness matrices of the elements must be constructed in each iteration. due to the high expense required to find the exact tangent stiffness matrices, researchers have developed novel innovations into the newton-raphson method to reduce the cost and time required by the analysis. in this paper, a ...

THE MODEL UPDATING OF MASS, DAMPING AND STIFFNESS MATRICES

A Simplified Finite Element Method for Large Frame Structures, Using Explicitly Derived Tangent Stiffness Matrices Deformation, Post-buckling Analyses of Large

In this paper, a simplified, economical and highly accurate method for large deformation, post-buckling, analyses of frame-type structures is presented. Using the concepts of polar-decomposition of deformation, an explicit expression for the tangent stiffness matrix of a member/element of the frame, that accounts for the nonlinear bending-stretching coupling, is derived in closed form, at any p...

Local Symmetry of Unit Tangent Sphere Bundle With g- Natural Almost Contact B-Metric Structure

We consider the unit tangent sphere bundle of Riemannian manifold ( M, g ) with g-natural metric G̃ and we equip it to an almost contact B-metric structure. Considering this structure, we show that there is a direct correlation between the Riemannian curvature tensor of ( M, g ) and local symmetry property of G̃. More precisely, we prove that the flatness of metric g is necessary and sufficien...