| History and Perspectives – Starting 25 years ago, in 1980, International Fracture Mechanics  Summer Schools (IFMASS) had been organized eight times, the last one in  2003. Topical monograph was published in Serbian after first seven  Schools under the School title, e.g. "Fracture Mechanics of Weldments"  (IFMASS 3), "The Application of Fracture Mechanics to Life Estimation of  Power Plant Components" (IFMASS 5), published also in English by EMAS.  The IFMASS 8 monograph "From Fracture Mechanics to Structural Integrity  Assessment" has been published in English. It is available at web site www.divk.org.yu. 
 The number of participants was from 62 in the first School, up to  145 in IFMASS 5, and 107 in IFMASS 8. The IFMASS lecturers staff included more than 70 well known world  experts, e.g.: P. Albrecht, M. Burdekin, D. Francois, H. Hoffmeister, I.  Hrivnak, V. Ivanova,     J. Landes  , J. Joyce, H. Mac Henry, A. Mazur, G. Pluvinage, J. Radon, M. Ratwani,  D. Read, K. H. Schwalbe, T. Siewert, R. Stephens, V. Troshchenko, M.  Wnuk, including many lecturers from former Yugoslavia.
 
 Two basic reasons to organize the Ninth International Fracture Mechanics Summer School (IFMASS 9) are:
 - After successful IFMASS 8, organized by DIVK in 2003 in Belgrade  (Serbia) with 25 presented lectures and participants from Serbia &  Montenegro, Bulgaria, Romania, Poland, Bosnia & Herzegovina,  Macedonia, Slovenia, Croatia, Turkey and Albania, the extension of the  School in other countries of South-East Europe (SEE) will enable regular  and fruitful gathering of the experts in Structural Integrity of this  region.
 - In the SEE extended region, the annual organisation of IFMASS could attract significant number of new young participants and enable regional cooperation, these days strongly supported by the European Union.
 
 New development during IFMASS had been considered by WORKSHOP. This time, Workshop in IFMASS 9
 New Trends in Fracture Mechanics Applications
 includes nanomaterials, numerical analysis and welded structures,  moderated by A. Shelev, H. Walter, G. Pluvinage, and A. Sedmak.
 
 
 IFMASS 9 Program 
 
 
|  | Lecture | Lecturer |  
|  | A. Fundamentals |  |  
| 1 | Crack problems in structures (crack resistance, fatigue, creep, corrosion) | S. Sedmak |  
| 2 | Basic of damage mechanics | D. Šumarac |  
| 3 | Mathematical modeling of time-dependent fracture in advanced aerospace materials | M. Wnuk |  
| 4 | Advanced structural steels | N. Radović |  
| 5 | Micromechanical analysis in structural integrity assessment | M. Rakin A. Sedmak
 |  
| 6 | Energy analysis of ∆K and ∆J: fatigue - data presentations | D. Angelova |  
| 7 | Fracture mechanics safety analysis in nuclear industry: from material properties to structural integrity | S. Vodeničarov |  
| 8 | Failure criteria based on the equivalent stress gradient | K. Hadjov |  
|  | B. Experiments and testing |  |  
| 9 | Residual stresses induced by welding | M. Zrilić |  
| 10 | Crack problems in welded joints | K. Gerić |  
| 11 | Significance of mechanical testing for structural integrity | V. Grabulov Z. Burzić
 |  
| 12 | Testing for detection and evaluation of cracks | M. Kirić |  
| 13 | Materials characterization and testing of soldered joints | B. Michel H. Walter
 |  
|  | C. Service problems |  |  
| 14 | Identification of damage in building structures using dynamical method | A. Baltov |  
| 15 | Failure at elevated temperature | V. Šijački |  
| 16 | Behaviour of welded structure at high temperature | B. Dogan B. Petrovski
 |  
| 17 | Investigations on composite materials - applications for reinforcement of steel-concrete structures | D. Dontchev K. Hadjov
 |  
| 18 | Stress intensity factors and integrity assessment by strain gauges and photoelasticity | D. M. Constantinescu |  
|  | D. Structural integrity assessment |  |  
| 19 | Failure and damage in pipes | G. Pluvinage |  
| 20 | Numerical analysis of welded structures for structural integrity assessment | A. Sedmak T. Manevski
 |  
| 21 | Fracture mechanics for the "Fitness for purpose" evaluation of weldments | A. Schelev N. Lolov
 |  
| 22 | Thermoelastic methodology for structural integrity assessment | L. Marşavina |  
| 23 | Limit load calculation model of ductile failure of defective pipe and pressure vessel | I. Orynyak |  
| 24 | Structural integrity assessment procedures and their application | G. Adžiev |  Lecturers and Schedule – The lecturers from Serbia are mostly in the lists of experienced lecturers from former IFMASS's:  Prof. Dr. Katarina Gerić, Dr. Vencislav Grabulov, Dr. Miodrag Kirić,  Prof. Dr. Taško Manevski. Prof. Dr. Nenad Radović, Dr. Marko Rakin,  Prof. Dr. Aleksandar Sedmak, Prof. Dr. Stojan Sedmak, Prof. Dr. Vera  Šijački Žeravčić, Prof. Dr. Dragoslav Šumarac, Dr. Milorad Zrilić
 The names in the lecturers list from Bulgaria are  well known in materials science, welding and fracture mechanics: Prof.  Dr. Donka Angelova, Prof. Dr. Angel Baltov, Dr. D. Dontchev, Prof. Dr.  Kliment Hadjov, Prof. Dr. Nikolay Lolov, Prof. Dr. Aleksandar Schelev,  Prof. Dr. Stefan Vodenicharov.
 
 The list of lecturers is completed by invited experts in the field from France: Prof. Dr. Guy Pluvinage; Germany: Prof. Dr. Bilal Dogan, Prof. Dr. Blagoj Petrovski, Prof. Dr. Bernd Michel, Dr. Hans Walter; Romania: Dr. Liviu Marşavina, Prof. Dr. D. Constantinescu; Ukraine: Dr. I. Orynyak; Macedonia: G. Adžiev
 
 
 IFMASS9 Schedule 
|  | Monday | Tuesday | Wednesday | Thursday | Friday |  
|  | 19.9. | 20.9. | 21.9. | 22.9. | 23.9. |  
| 8.30-10 | Registration | C14 & A8 | B11 & B12 | A2 & C17 | C18 & D21 |  
| 10 | Opening | Coffee | Coffee | Coffee | Coffee |  
| 10.30-12 | A7 & A3 | A4 & A5 | B9 & B10 | C15 & C16 | D23 & D20 |  
| 12 | Coffee |  | Lunch |  | Lunch |  
| 12.15-13 | A1 |  | B13 |  | D21 & D24 |  
| 13-16 | Lunch | Lunch | Bulgarian | Lunch |  |  
| 16-17.30 | D19 & A6 | workshop | side initia- | workshop | Closing |  
| 17.30 |  | Coffee | tive for pa- | Coffee |  |  
| 18-18.45 |  | workshop | rticipants | workshop |  |  
| 19.30 |  |  | Gala Dinner |  |  |  IFMASS 9 will be held in Zlatni  Piastci (Golden Sand) at the Black Sea coast, 20 km from Varna, the  third biggest city in Bulgaria.
 
 Varna is 470 km from Sofia and 530 km from the border with Serbia.  Good communication by air (international airport), rail road (daily  trains Belgrade – Varna) and road, (daily bus Belgrade – Varna).  Participants also can use very convenient arrangement offered by ARGUS  TOURS, Belgrade, Balkanska 51, tel. +381 11 361 76 60
 
 Accommodation
 For participants from Serbia the arrangement from 16th to 27th September  is available with ARGUS TOURS. The arrangement in Astoria Beach Hotel  (****) includes 9 overnights in double bedroom, from 17th to 25th  September, at the price of 115 € and bus transfer Belgrade – Hotel in  Golden Sand and back for 3.999,00 dinars (about 50 €). The other  participants can also use the accommodation and meals at the same price  by ARGUS TOURS or by its Bulgarian partner AQUAMARINE HOLDING-BULGARIAN  VIP TOURS. We would be happy to assist you in finding suitable hotel  accommodation.
 
 Registration
 Registration fee is 80 Euro, for DIVK members 60 Euro and 40 for young  researchers. The registration fee can be paid at the reception desk of  the Conference on the opening day.
 
 Contacts
 Mr. Ljubica Milović, IFMASS 9 secretary
 Faculty of Technology and Metallurgy, Karnegijeva 4, 11000 Belgrade, Serbia and Montenegro
 Tel. +381 63 8124965    e-mail: 
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 DIVK Office, Bulevar voj. Mišića 43, room 258, 11000 Belgrade, Serbia and Montenegro
 Tel. Fax. +381 11 369 2772, e-mail: 
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 and on e-mail addresses: 
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  Organizers: 
 
 Prof. Stojan Sedmak & Prof. Dragoslav Šumarac
 Society for Structural Integrity and Life- DIVK
 Bulevar vojvode Mišića 43, 11000 Belgrade, SCG
 
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 Prof. Stefan Vodenitcharov
 Institute of Metal Science, Bulgarian Academy of Sciences
 67 Shipchenski Prohod, 1574Sofia, Bulgaria
 
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 Prof. Petar Darjanov
 Bulgarian Welding Society
 1000 Sofia, Kliment Ohridski 8, TU-Sofia, Bulgaria
 
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 Prof. Donka Angelova
 University of Chemical Technology and Metallurgy
 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
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