Trapped cracks at indentations

Autor:	Robert F. Cook, L. M. Braun
Rok vydání:	1994
Předmět:	Cracking Materials science Field (physics) Mechanics of Materials Structural mechanics Mechanical Engineering Indentation Ultimate tensile strength General Materials Science Fracture mechanics Composite material Crystallographic defect Stress intensity factor
Zdroj:	Journal of Materials Science. 29:2192-2204
ISSN:	1573-4803 0022-2461
Popis:	A fracture-mechanics model for indentation cracking in phase-transforming materials is developed, based on the competing interaction of the tensile residual-mismatch field and the compressive contact-induced transformation field. In addition to the usual subthreshold and well-developed cracking ranges, the model predicts the trapping of cracks at indentations, within the transformation zone. As an example, the model is used to describe the dependence of radial crack length on indentation load in a range of yttria-tetragonal zirconia polycrystals (Y-TZP), explicitly addressing the trapping behaviour observed in Part I (...)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::13cece8e02baf5076322f185f81801e6 https://doi.org/10.1007/bf01154700 Zobrazit plný text záznamu Full text from SpringerLink