The numerical simulation of ceramic composites failure at axial compression
| Autor: | M.O. Eremin, P.V. Makarov |
|---|---|
| Přispěvatelé: | Томский государственный университет Физико-технический факультет Кафедра теории прочности и проектирования, Томский государственный университет Физико-технический факультет Публикации студентов и аспирантов ФТФ |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
lcsh:Mechanical engineering and machinery Composite number lcsh:TA630-695 Corundum engineering.material разрушение хрупкое керамические композиты chemistry.chemical_compound Brittleness Axial compression Brittle and quasi-brittle failure lcsh:TJ1-1570 Ceramic Composite material численное моделирование Computer simulation Zirconium dioxide Mechanical Engineering lcsh:Structural engineering (General) Quasistationary phase chemistry Mechanics of Materials visual_art engineering visual_art.visual_art_medium Hardening (metallurgy) разрушение квазихрупкое Blow-up regime |
| Zdroj: | Frattura ed integrita strutturale. 2013. Vol. 24. P. 127-137 Frattura ed Integrità Strutturale, Vol 7, Iss 24 (2013) Frattura ed Integrità Strutturale, Vol 7, Iss 24, Pp 127-137 (2013) Frattura ed Integrità Strutturale; Vol 7 No 24 (2013): April 2013; Pages 127-137 Frattura ed Integrità Strutturale; V. 7 N. 24 (2013): April 2013; Pages 127-137 |
| ISSN: | 1971-8993 |
| Popis: | On the basis of the developed model of quasibrittle medium the brittle and quasibrittle failure of composite ceramic materials with zirconium dioxide matrix and various percentage of hardening particles of corundum are studied numerically. The theory of the damaged media is applied in the calculations. It is shown that failure process educes in 2 stages - a relatively slow quasistationary phase of accumulation of inelastic deformations and damages in all hierarchy of scales and superfast catastrophic phase - a blow-up regime when the failure process reaches the macro-scale and there is a macro-crack formation. The failure process in the proposed model assumes to be completed when the damage function reaches its maximum value and the strength of the composite evolve to zero. |
| Databáze: | OpenAIRE |
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