'Periodica Polytechnica Budapest University of Technology and Economics'
Abstract
Consistent and simple lumped mass matrices are formulated for the
dynamic analysis of beams with arbitrary cross-section. The development is
based on a general beam theory which includes the effect of flexural-torsion
coupling, the constrained torsion warping and the shear centre location.
Numerical tests are presented to demonstrate the importance of torsion warping
constraints and the acceptable accuracy of the lumped mass matrix formulation
