Cracking of two-phase ceramics under uniaxial compression deformation

• Autorzy: Sadowski T. , Marsavina L. , Craciun E. M.
• Języki publikacji: EN

Abstrakty

EN

Two-phase ceramics have a non-linear and complex overall response to applied loads due to composition of two different phases with initial porosity, development of limited plasticity and internal microdefects. These microdefects cause stress concentrations and locally change the state of stress, which results in the development of mesocracks leading to macrocracks. In this article, a multiscale approach was applied to the modelling of the two-phase ceramics response under compression deformation. This allowed to include different phenomena at micro-, mesoand macro-scales.

Słowa kluczowe

EN

two-phase ceramic material; cracking under compression; multiscale modelling

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2017
• Tom: Vol. 65, iss. 1
• Strony: 39--44
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Sadowski T.

• Lublin University of Technology Department of Solid Mechanics Nadbystrzycka 40, 20-618 Lublin, Poland

autor

Marsavina L.

• Polytechnica University Timisoara Department Strength of Materials Blvd. M. Viteazu, No 1, Timisoara 300222, Romania

autor

Craciun E. M.

• “Ovidius” University of Constanta Faculty of Mechanical, Industrial and Martime Engineering Bd. Mamaia 124, 900527, Constanta, Romania

Bibliografia

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• 2. Gomze L.A., G ¨ omze L.N. ¨ , Ceramic based lightweight composites with extreme dynamic strength, IOP Conference Series: Materials Science and Engineering, 47(1): 012033–012038, 2013, doi: 10.1088/1757-899X/47/1/012033.
• 3. Birman V., Bryd L.W., Modelling and analysis of functionally graded materials and structures, ASME, Applied Mechanics Review, 60(5): 195–216, 2007, doi: 10.1115/1.2777164.
• 4. Sadowski T., Golewski P., The influence of quantity and distribution of cooling channels of turbine elements on level of stresses in the protective layer TBC and the efficiency of cooling, Computational Materials Science, 52(1): 293–297, 2012, doi: 10.1016/j.commatsci.2011.02.027.
• 5. Sadowski T., Golewski P., Detection and numerical analysis of the most efforted places in turbine blades under real working conditions, Computational Materials Science 64: 285– 288, 2012, doi: 10.1016/j.commatsci.2012.02.048.
• 6. Sadowski T., Marsavina L., Mutiscale modelling of two-phase Ceramic Matrix Composites, Computational Materials Science, 50(4): 1336–1346, 2011, doi: 10.1016/j.commatsci.2010.04.011.
• 7. Sadowski T., Pankowski B., Numerical modelling of two-phase ceramic composite response under uniaxial loading, Composite Structures, 143: 388–394, 2016, doi: 0.1016/j.compstruct.2016.02.022.
• 8. Kachanov M., On effective moduli of solids with cavities and cracks, International Journal of Fracture, 59(1): R17–R21, 1993, doi: 10.1007/BF00032223.
• 9. Sadowski T., Description of damage and limit conditions for ceramic materials [in Polish], Lublin University of Technology Press, Lublin, 1999.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).