Local buckling and post-buckling of thin-walled composite channel-section beams under
pure bending are described. Profiles were subject to bending in the plane of the lowest …

Abstract The Koiter–Newton approach is a reduced-basis method for nonlinear structural
analyses. The method combines Koiter's approach as a predictor step and the Newton arc …

SUMMARY A new approach termed the Koiter‐Newton is presented for the numerical
solution of a class of elastic nonlinear structural response problems. It is a combination of a …

A new quadrilateral four node membrane finite element based on a mixed Hellinger–
Reissner variational formulation is proposed. Displacement and stress interpolations are …

The paper deals with geometrically nonlinear finite element analysis of folded-plate and
shell structures. A Koiter asymptotic approach is proposed, based on the reuse of a linear …

Abstract The Koiter–Newton approach is a novel reduced order modeling technique for
buckling analysis of geometrically nonlinear structures. The load carrying capability of the …

Summary The Koiter‐Newton (KN) method is a combination of local multimode polynomial
approximations inspired by Koiter's initial postbuckling theory and global corrections using …

The influence of the imperfection sign (sense) on local postbuckling equilibrium path of
plates made of functionally graded materials (FGMs) has been analyzed. Koiter's theory has …

Abstract The Koiter–Newton method is a reduced order modeling technique which allows us
to trace efficiently the entire equilibrium path of a non-linear structural analysis. In the …

A new mixed stress 4-node flat shell finite element, designed for the linear and nonlinear
analysis of folded plate structures, is presented. The kinematics of the element is defined by …