Computer program for determination of geometrical properties of thin-walled beams with open-closed section

A computer program is developed for the determination of the torsional and flexural properties of thin-walled beams with arbitrary open-closed cross-section. Graph theory is employed to establish the topological properties of multi-cellular cross-section, i.e., to automatically define independent circuits and corresponding fictitious cuts that make section open. Numerical examples calculated by the program are given in the paper. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.