Modified Johnson–Cook material flow model for hot deformation processing

Autor:	Amit Kumar Maheshwari, S. P. Narayan, N. Ramakrishnan, K. K. Pathak
Rok vydání:	2010
Předmět:	Materials science Flow (mathematics) Mechanics of Materials Mechanical Engineering Solid mechanics Mathematical analysis Forensic engineering General Materials Science Regression analysis Deformation (engineering) Strain rate Material flow
Zdroj:	Journal of Materials Science. 45:859-864
ISSN:	1573-4803 0022-2461
DOI:	10.1007/s10853-009-4010-x
Popis:	The need of a generalised flow curves considering strain (e), strain rate (\( \dot{\varepsilon } \)) and temperature (T) is a primary requirement for material modelling related to several conventional and strategic mechanical processing to meet critical and non-critical engineering applications. The realistic coefficients of flow curves need to be obtained for such model. In the present study a modified Johnson–Cook (JC) material model has been proposed with physical significance. Six constants of this model can be obtained through the regression analysis. When compared to the JC model, proposed model is found to be more reliable for Al-2024 alloy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f9cf249d52f876045904bbeff65b22c3 https://doi.org/10.1007/s10853-009-4010-x Zobrazit plný text záznamu Plný text ve formátu PDF