BULGARIAN ACADEMY OF SCIENCES
NATIONAL COMMITTEE OF THEORETICAL AND APPLIED MECHANICS
JOURNAL OF THEORETICAL AND APPLIED MECHANICS

Editor-in-Chief: STEFAN RADEV
Institute of Mechanics, Bulgarian Academy of Science
Akad. G. Bonchev St., Bl. 4, 1113 Sofia, Bulgaria
Phone: (3592) 8702033, Fax: (3592) 8707498, E-mail:

Editorial Board

Advisory Editorial Board

AL. KAZAKOV
(Scientific Secretary)
A. GUZ
Institute of Mechanics, BAS, SofiaInstitute of Mechanics, UAS, Kiev, Ukraine
A. BALTOVA. LIOLIOS
Institute of Mechanics, BAS, SofiaDemocritus-University of Thrace, Greecee
D. KARAGIOZOVAD. GROSS
Institute of Mechanics, BAS, SofiaTU Darmstadt, Germany
E. ZAHARIEVF. FEUILLEBOIS, LIMSI
Institute of Mechanics, BAS, SofiaCampus Universitaire d’Orsay, France
E. MANOACHF. ZIEGLER
Institute of Mechanics, BAS, SofiaTechnische Universitat Wien, Austria
E. KUSTOVA G. MANOLIS
Saint Petersburg University, RussiaAristotle University, Thessaloniki, Greece
M. MEDALE G. PANZA
Aix-Marseille University, France University of Trieste, Italy, Head of SAND group at
the Abdus Salam International Centre for Theoretical Physics
N. VITANOV L. LILOV
Institute of Mechanics, BAS, Sofia University of Sofia, Bulgaria
P. DINEVA M. ALVES
Institute of Mechanics, BAS, Sofia University of Sao Paulo, Brazil
S. TABAKOVA S. GROZDEV
Institute of Mechanics, BAS, SofiaInstitute of Mechanics, BAS, Sofia
TS. RANGELOV V. KOVTUN
Institute of Mathematics and Informatics, BAS, Sofia Gomelski Injenernij Institut, Byelorussia
V. KAVARDJIKOV Vl. GUSHCHIN
Institute of Mechanics, BAS, SofiaInstitute of Computer Aided Design, RAS, Russia
Y. IVANOV W. SCHIENLEN
Institute of Mechanics, BAS, SofiaUniversity of Stuttgart, Germany
Z. ZAPRYANOV
University of Sofia, Bulgaria
Z. MROZ
IPPT-PAS, Poland

Founding Editor: G. BRANKOV