BUCKLING AND POSTBUCKLING BEHAVIOUR OF THIN-WALLED COMPOSITE CHANNEL SECTION BEAM

Hubert Debski* , Tomasz Kubiak†, Andrzej Teter ‡ *Department of Machine Design, Lublin University of Technology Nadbystrzycka 36, 20-618 Lublin, Poland e-mail: h.debski@pollub.pl †Department of Strength of Materials, Technical Univ ersity of Lodz Stefanowskiego 1/15, 90-924 Lodz, Poland e-mail: tomasz.kubiak@p.lodz.pl ‡ Department of Applied Mechanics, Lublin University of Technology Nadbystrzycka 36, 20-618 Lublin, Poland e-mail: a.teter@pollub.pl