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Locking-free finite element formulation for steel-concrete composite members
IOP Conference Series: Materials Science and Engineering
In the conventional displacement-based finite element analysis of composite beamcolumns that consist of two Euler-Bernoulli beams juxtaposed with a deformable shear connection, the coupling of the transverse and longitudinal displacement fields may cause oscillations in interlayer slip field and reduction in optimal convergence rate, known as sliplocking. This locking phenomenon is typical of multi-field problems of this type, and is known to produce erroneous results for the displacement baseddoi:10.1088/1757-899x/10/1/012239 fatcat:ccv74wdocvbnrfwmjcmr34bcda