From the fracture-mechanical experiment to the stochastic model of quasi-brittle structure/structural member

• Autorzy: Routil L.

Warianty tytułu

PL

Od eksperymentu do modelu stochastycznego quasi-kruchego elementu konstrukcyjnego

• Języki publikacji: PL

Abstrakty

PL

Referat przyczynia się do kompleksowego podejścia do problemu projektowania i oceny quasi-kruchych elementów konstrukcyjnych wykonanych z kompozytów cementowych. W pracy dokonano przeglądu dotychczasowych wyników doświadczeń z zakresu mechaniki pękania dla quasi-kruchych kompozytów cementowych prowadzonych przez grupę badawczą Instytutu Mechaniki Budowli. Dokonano także przeglądu wybranych aspektów i wyników nieliniowej analizy stochastycznej elementów konstrukcyjnych wykonanych ze wspomnianych kompozytów w kontekście kompleksowego podejścia do problematyki ich projektowania.

EN

The paper contributes to the complex approach to the design and evaluation of quasi-brittle structures/structural members made of (advanced) cement based composites. It reviews recent results in the experimental fracture mechanics of quasi-brittle cement based composites obtained by the research group at Institute of Structural Mechanics (fracture parameters, incl. their statistics or influence of material degradation) as well as chosen aspects and results of nonlinear stochastic analysis of structural members made of these composites and inserts them into the presented complex approach.

Słowa kluczowe

PL

model stochastyczny; mechanika pękania; kompozyty cementowe

EN

stochastic model; quasi-brittle structure; cement-based composites

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Zeszyty Naukowe. Budownictwo / Politechnika Śląska
• Rocznik: 2007
• Tom: z. 112
• Strony: 291--298
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Routil L.

• Faculty of Civil Engineering Brno University of Technology, 602 00 Brno, Veveří 331/95 tel.[phone],

Bibliografia

• 1. Bażant Z. P., Planas J.: Fracture and Size Effect in Concrete and other Quasi-brittle Materials. Florida 1998.
• 2. Cervenka V., Pukl R.: ATENA Documentation. Cervenka Consulting, Prague 2005.
• 3. Karihaloo B. L.: Fracture mechanics of concrete. Longman Scientific & Technical, New York 1995.
• 4. Kersner Z., Novak D., Routil L., Podrouzek D.: Stochastic Nonlinear Analysis of Concrete Structures - Part II: Application to fiber-reinforced concrete facade panels. In 1? ASP 10, Tokyo, Japan 2007.
• 5. Lehky D., Novak D.: Identification of material model parameters using stochastic training of neural network. In Proc. of 5th PhD Symposium, Delft, Netherlands 2004.
• 6. Melcher J., Karmazinova M., Knezek J., Lederer L.: Experimental verification of glass-fibre reinforced facade member. In Proc. Ecology and New Building Materials, X Conference Tele, Czech Republic 2006.
• 7. Novak D., Vorechovsky M., Rusina R.: FREET - Program Documentation. Theory and User's Manual, Brno 2006.
• 8. Podrouzek J., Novak D.: Analysis of facade panels made of fibre-reinforced composite I: Nonlinear 3D modeling. In Ecology and new buildings materials and products Tele, Czech Republic 2006.
• 9. Pukl R., Cervenka V., Strauss A., Bergmeister K., Novak D.: Advanced engineering software for probabilistic-based assessment of concrete structures using nonlinear fracture mechanics. Proc. of ICASP 9, San Francisco, USA 2003. -
• 10. RJLEM Committee FMC 50 (Recommendation) Determination of the fi-acture energy of mortar and concrete by means of three-point bend test on notched beams. Materials and Structures, No. 18, 1985, p. 285-290.
• 11. Routil L., Kersner Z.: Probability analysis of railway sleeper's crack width propagated during check test. In conf Probability of structure's failure, Brno 2004.
• 12. Routil L., Stand P., Vesely V., Kersner Z., Bile V.: Modelling of Degradation of Pre-Tensioned Sleepers. In Quality and Reliability in Building Industry, Levoca, Slovak Republic 2006.
• 13. Routil L., Vesely v., Kersner Z.: Degradation of glass-fibre reinforced composites: Fracture parameters and their statistics. In Proc. Ecology and New Building Materials, X Conference Tele, Czech Republic 2006.
• 14. Stibor M.: Fracture-mechanical parameters of quasi-brittle materials and the methods for its determination. Ph.D. Thesis, Brno University of Technology, Brno 2004.
• 15. Stancl P., Vesely V., Kersner Z., Routil L., Frantik P., Bilek V., Mosler ?.: Influence of Material and Structural Parameters on Concrete Sleeper Response. In 2nd CCC Congress, Hradec Kralove, Czech Republic 2006.
• 16. Vesely v.: Parameters of Concrete for Description of Fracture Behaviour. Ph.D. Thesis, Brno University of Technology, Brno 2004.