Micromechanical modeling of ductile fracture of human humerus

Autor:	J. Rahmoun, H. Naceur, P. Drazetic, C. Fontaine
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	micromechanics biomechanics multiscale modeling fracture impact finite element Mechanical engineering and machinery TJ1-1570 Mechanics of engineering. Applied mechanics TA349-359
Zdroj:	Journal of Mechanical Engineering and Sciences, Vol 14, Iss 2, Pp 6952-6960 (2020)
Druh dokumentu:	article
ISSN:	2289-4659 2231-8380
DOI:	10.15282/jmes.14.2.2020.32.0544
Popis:	This paper deals with the formulation, development and validation of a newly developed micromechanical-based model for the modeling of the nonlinear ductile fracture of human humerus. The originality of the present works concerns the coupling between the micromechanical formulation based on the Mori-Tanaka homogenization scheme for cylindrical voids and the Marigo nonlinear ductile damage model based on the porosity growth. The proposed model was implemented as a User Material UMAT within the explicit dynamic software LS-DYNA and validated by numerical and experimental analysis conducted by a drop tower impact of human humerus. The outcome of the proposed multi-scale model appears to correctly predict the general trends observed experimentally via the good estimation of the ultimate impact load and the fracture patterns of the human humerus.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/7cad35fc61c14d4a809bb17b0147238c Zobrazit plný text záznamu View record in DOAJ