the 50th anniversary of Stability of Structures Symposia
Lodz, May 17, 2013
Solemn scientific seminary devoted to jubilee of the 50th anniversary of Stability of Structures Symposia took place on 17th of May 2013 in Ambasador Hotel, Lodz.
In the seminary participated: Rector of Poznan University of Technology-Professor Tomasz Łodygowski, Rector of Higher School of Labour Safety Management in Katowice-Professor Marek Trombski, Vice-Rector of Czestochowa University of Technology-Professor Jacek Przybylski, Dean of Faculty of Organization and Management, Lodz University of Technology - Professor Ryszard Grądzki, Doctor Honoris Cause of Lodz University of Technology, –senior of Polish mechanical engineers - Professor Czesław Woźniak, Vice-President of The Committee on Civil Engineering and Hydroengineering of Polish Academy of Sciences - Professor Andrzej Garstecki. Official opening of the seminary was effectuated by Dean of Faculty of Mechanical Engineering of TUL Professor Bogdan Kruszyński.
The jubilee of the 50th anniversary of Stability of Structures Symposia was honoured by the presence of Friends - Professors from abroad: Dan Dubina (Romania), Vasyly Krasovsky (Ukraine), Martin Macdonald (UK), Arkady Manevich (Ukraine), Jan Ravinger (Slovakia), James Rhodes (UK), Shigeru Shimizu (Japan), Viorel Ungureanu (Romania), Christopher York (UK).
Besides that, following guests attended: from Poznan University of Technology: Professor Krzysztof Magnucki, Professor Jerzy Zielnica and Professor Ewa Magnucka-Blandzi; from Military University of Technology: Professor Tadeusz Niezgoda, Professor Wiesław Barnat and Professor Jerzy Małachowski. Guests from other universities in Poland also participated: Professor Czesław Szymczak from Gdansk University of Technology, Professor Aleksander Muc from Cracov University of Technology, Professor Czesław Cichoń from Kielce University of Technology, Professor Dorota Pawlus from University of Bielsko-Biala and Professor Andrzej Teter from Lublin University of Technology.
Two of the invited guests of the commemorative seminary were the participants of the I Symposium. Mainly speaking PhD Andrzej Młotkowski and Assistant Professor Janusz Lipiński were the ones from all six participants of the Symposium.
Numerous guests comprised of scientific staff of Lodz University of Technology. Together 57 participants took part in the seminary.
History of Stability of Structures Symposia was depicted and speeches of invited guests were given during the solemn seminary. In the scientific part three keynote lectures were presented: Professor Dan Dubina (University ‘Politehnica’ Timisoara, Romania) “Design and research assisted by testing in structural engineering”, Professor Christopher York (University of Glasgow, UK) “Thermo-mechanical tailoring strategies for uni-direction, woven-cloth and hybrid laminate systems”, Professor Maria Kotełko (Lodz University of Technology) “The Lodz Research Center of Stability”.
In the artistic part soloists Agnieszka Makówka and Rafał Songan appeared, with accompaniment of Ewa Szpakowska and leading of Grażyna Sikorska.
Conference banquet has ended the commemorative seminary.
Professor Jerzy Leyko - an originator of the “the stability of structures school of Łódź” well recognized in Poland- was the initiator of periodic organization of Stability of Structures Symposia. Etymology of the word ‘symposium’, from Latin, or 'symposion' from Greek, comes from ancient Greece and defines part of happy social meeting devoted to talks about specific topics, usually philosophical, joined with drinking wine and entertainment.
Nowadays it denotes a meeting of specialists from particular field dedicated to discussion of specific problems and sharing of views about given topic. It has narrower meaning than conference or congress and it corresponds usually to a meeting of specialists in particular field. The organizers of Symposia are loyal to this definition.
On 25th of May 2013 fell the jubilee of 50th anniversary of Ist Symposium of Stability of Structures, which took place in Lodz. It was a modest, one-day conference, within which 7 papers were presented and 27 participants took part in. The proceedings in the form of a thin brochure contained only abstracts of presented papers and were published using an old fashioned duplicator. The Symposium was organized by the Polish Society of Theoretical and Applied Mechanics (branch in Łódź) with the supportive co-operation of Professors: Włodzimerz Derski, Jerzy Gluza, Kazimierz Grossman, Jerzy Leyko, Zdzisław Parszewski and Jan Szmelter. There were six participants of I Symposia among invited guests of the commemorative Seminary: Tadeusz Gałkiewicz, Kazimierz Grossman, Janusz Lipiński, Andrzej Młotkowski, Roman Ratajczyk and Wacław Zwoliński.
Next two Symposia took place in an eight years cycle. II Symposium of Stability of Structures was held in Lodz in November 18-19, 1971, with 90 participants. 24 speeches were given.
Organizers of the Symposia were The Department of Applied Mechanics of Lodz University of Technology led by Professor Jerzy Leyko and the Łodź Branch of the Polish Society of Theoretical and Applied Mechanics (PTMTS).
Professor Jerzy Leyko initiated organization of symposia with the participation of foreign guests. He led the organizing committees of a few of first symposia, which became a permanent scientific event organized in Poland.
In October 26-27, 1979 in Lodz III Symposium of Stability took place. Permanent coorganizer of symposia up to XII-th Symposium was the Division of Stability of Structures-Committee of Machine Design of the Polish Academy of Sciences. At this conference the decision was made to organize the symposia every three years.
Martial law unabled organization of IV th Stability of Structures Symposium in 1982. It took place three years later in Sulejow in October 9-11, 1985.
The next Symposia were held as follows:
V Symposium on 3-7 October 1988 at Cedzyna near Kielce (southern Poland)
VI Symposium on 5-8 November 1991 at Spała on Pilica river (near Łódź)
VII Symposium on 7-9 November 1994 at Jaworze (near Bielsko-Biała)
VIII Symposium on 22-26 September 1997 in Zakopane
IX Symposium on 25-29 September 2000 in Zakopane
X Symposium on 8-12 September 2003 in Zakopane
XI Symposium on 11-15 September 2006 in Zakopane
XII Symposium on 7-11 September 2009 in Zakopane
XIII Symposium on 17-21 September 2012 in Zakopane
During last Stability of Structures XIII-th Symposium 9 keynote lectures were presented and 60 speeches were given. 82 guests participated in Symposium, 5 from Great Britain, 5 from Ukraine, 3 from Japan, 2 from Czech Republic, Slovakia and one from Portugal, Romania, Russia and Germany.
Proceedings of the Conference were dedicated to Professors: Arkadi Manevich, Marian Królak, James Rhodes, Czesław Szymczak, Lech Tomski and Jerzy Zielnica, due to jubilee of their 70th anniversary of birth.
From many years, numerous participation of foreign guests from UK, Japan, Ukraine, Slovakia, Czech Republic, Romania, Germany, Russia and Portugal underlines the rank of this closed-circle conference.
Meetings and longstanding cooperation fructified with numerous monographs, articles and papers.
Symposia cover wide subject area of nonlinear stability and dynamics of structures. Researches were conducted on rods, trusses, plates and shells, one- and multi-layered, sandwich structures and periodic ones manufactured from functionally graded materials. The topic of studies was stability, post critical states, load capacity, optimization and strength of a structure.
Of most concern deserve works describing experimental studies, which because of costs, time of preparation, duration and complexity are usually replaced by so called numerical experiment. Numerical simulations may limit scope of experimental works, but cannot exclude them.
Efficient organization would not be possible without sacrificial work of members of Organizing Committees during the time of preparation and right on symposia. Almost all of them are the members of the Łodź Branch of the Polish Society of Theoretical and Applied Mechanics (PTMTS) and simultaneously are the scientific staff of the Department of Strength of Materials from Lodz University of Technology.
Department of Strength of Materials is one of the leading research centre in Poland, which deals with stability, post critical states, critical load capacity, failure mechanisms and absorption of energy in thin-walled construction.
The originator of the “the stability of structures school of Łódź” was Professor Jerzy Leyko. After retirement in 1981, Professor Marian Królak continued development of “the stability of structures school of Łódź” with full engagement and numerous successes.
Current high and well recognized in Poland and abroad position of “the stability of structures school of Łódź” is a great merit of Professor Jerzy Leyko and Professor Marian Królak. They took care of high level of scientific works management, they were mentors of mechanics of thin-walled structures and led in paths of scientific promotions. We could always count on theirs support, care, attentive understanding, kind and insightful remarks.
On 50th anniversary of Stability of Structures Symposia we would like to express our great acknowledgments and words of respect to all of the participants. At the same time we would like to recall the memory and pay tribute to the deceased participants of our Symposia. Professor Jerzy Leyko will stay in our memory forever.
Fig. 1. List of participants of the I Stability of Structure Symposium
Authors of papers printed in proceedings
of Stability of Structures Symposia within the years