Affiliation: | 1. Institute of Mechanics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., Bl. 4, 1113 Sofia, Bulgaria;2. “G. Nadjakov” ISSP, Bulgarian Academy of Sciences, Blvd. Tzarigradsko Chaussee 72, 1784 Sofia, Bulgaria;1. Department of Civil Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran;2. Department of Civil Engineering, Isfahan University of Technology, Isfahan, Iran;1. Institute of Mechanics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., Bl. 4, 1113 Sofia, Bulgaria;2. Max-Planck-Institute for the Physics of Complex Systems, Noethnitzerstr. 38, 01187 Dresden, Germany;3. “G. Nadjakov” Institute of Solid State Physics, Bulgarian Academy of Sciences, Blvd. Tzarigradsko Chaussee 72, 1784 Sofia, Bulgaria;1. Institute of Mechanics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., Bl. 4, 1113 Sofia, Bulgaria;2. Max-Planck-Institute for the Physics of Complex Systems, Noethnitzerstr. 38, 01187 Dresden, Germany;3. “G. Nadjakov” Institute for Solid State Physics, Bulgarian Academy of Science, Blvd. Tzarigradsko Chaussee 72, 1784 Sofia, Bulgaria |