Analysis and modelling of mechanical anchorage of 4D/5D hooked end steel fibres

Autor: David W. A. Rees, Mizi Fan, Sadoon Abdallah
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Materials & Design, Vol 112, Iss, Pp 539-552 (2016)
ISSN: 0264-1275
Popis: This paper represents an analytical model to predict the influence of the fibre geometry on the pull-out behaviour of various geometrical hooked end steel fibres. The model is established based on the concept of a frictional pulley along with two, three and four plastic hinges to simulate the mechanical anchorage effect provided by the hook. The mechanical contribution of the hook is a function of the cold work needed to straighten the fibre during the pull-out. The input parameters used in this model are directly related to geometrical and mechanical properties of each fibre. Model predictions are validated against experimental results for single fibre pull-out tests, and very good agreement is shown. The first author gratefully acknowledges the financial support of the Ministry of Higher Education and Scientific Research of Iraqi Government for this Ph.D. project
Databáze: OpenAIRE