Analysis of fracture toughness of structural timber. Part I. Theory and experimental tests

• Autorzy: Kyzioł Lesław
• Języki publikacji: EN

Abstrakty

EN

This paper presents fundamentals of fracture mechanics of anisotropic materials. Fracture toughness of anisotropic materials, e.g. structural timber, depends a. o. on state of stress, environment, temperature and changes due to ageing, therefore in such materials cracking process runs in various ways. Timber is characterized by eighteen coefficients which determine its fracture toughness in contrast to metals for which this number is as low as three. In this part of considerations a way of conducting the tests of specimens subjected to cracking as well results of the tests of natural and modified timber, are presented.

Słowa kluczowe

EN

anisotropic material; anisotropic material cracking; CAD specimens; test stand; complex loading; stress distribution

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2010
• Tom: nr 3
• Strony: 53--58
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Kyzioł Lesław

• Faculty of Mechanical and Electrical Engineering Institute of Basic Engineering Polish Naval Academy in Gdynia Śmidowicza 69 81-103 Gdynia, POLAND,

Bibliografia

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• 2. Dobrzański L. A.: Metal materials for engineering (in Polish). Wydawnictwo Naukowo – Techniczne (Scientific Technical Publishing House), Warsaw, 2004.
• 3. Gołaski L.: Elements of experimental fracture mechanics (in Polish). Wydawnictwo Politechniki Świętokrzyskiej (Publishing House of Saint Cross University of Technology), Kielce, 1992.
• 4. Kyzioł L.: Analysis of properties of structural timber supeficially saturated with MM polymer (in Polish). Akademia Marynarki Wojennej (Polish Naval Academy), Gdynia, 2004.
• 5. Neimitz A.: Fracture mechanics (in Polish). Wydawnictwo Naukowe PWN (Polish Scientific Publishing House), Warsaw, 1998.
• 6. Ochelski S.: Experimental methods in mechanics of structural composites (in Polish). Wydawnictwa Naukowo – Techniczne (Scientific Technical Publishing House), Warsaw, 2004.
• 7. Davies P.: Protocols for Inter-laminar Fracture Testing of Composites. European Structural Integrity Society, Polymers & Composites Task Group, 1992.
• 8. Ducept F., Davies P., Gamby B.: An Experimental Study of Validation Tests Used to Determine Mixed Mode Failure Criteria of Glass/Epoxy Composites. Composites, Part A, Vol. 28 A, 1997.
• 9. Schniewind A. P., Pozniak R., A.: On the Fracture Toughness of Douglass Fir Wood. Engineering Fracture Mechanics, Vol. 2, 1971.