Numerical integration of rate-independent BCC single crystal plasticity models: comparative study of two classes of numerical algorithms

Autor: Farid Abed-Meraim, Holanyo K. Akpama, Mohamed Ben Bettaieb

Publikováno v: International Journal for Numerical Methods in Engineering. 108:363-422

Summary In an incremental formulation suitable to numerical implementation, the use of rate-independent theory of crystal plasticity essentially leads to four fundamental problems. The first is to determine the set of potentially active slip systems

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba49fc64620d0f21afd09e424e771334
https://doi.org/10.1002/nme.5215

Influence of the Yield Surface Curvature on the Forming Limit Diagrams Predicted by Crystal Plasticity Theory

Autor: Mohamed Ben Bettaieb, Holanyo K. Akpama, Farid Abed-Meraim

Publikováno v: Latin American Journal of Solids and Structures, Volume: 13, Issue: 12, Pages: 2231-2250, Published: DEC 2016
Latin American Journal of Solids and Structures v.13 n.12 2016
Latin American journal of solids and structures
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron:ABCM
Latin American Journal of Solids and Structures, Vol 13, Iss 12, Pp 2231-2250
Latin American Journal of Solids and Structures
Latin American Journal of Solids and Structures, Argentinean Association of Computational Mechanics, Brazilian Association of Computational Mechanics, Mexican Association of Numerical Methods in Engineering and Applied Sciences, 2016, 13 (12), pp.2231-2250. ⟨10.1590/1679-78252456⟩

International audience; The aim of this paper is to investigate the impact of the microscopic yield surface (i.e., at the single crystal scale) on the forming limit diagrams (FLDs) of face centred cubic (FCC) materials. To predict these FLDs, the bif

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d348379274d92ece1441e80eb501249
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016001202231&lng=en&tlng=en

Ductility prediction of substrate-supported metal layers based on rate-independent crystal plasticity theory

Autor: Mohamed Ben Bettaieb, Farid Abed-Meraim, Holanyo K. Akpama

Publikováno v: MATEC Web of Conferences, Vol 80, p 02007 (2016)
MATEC Web of Conference
12th International Conference on Numerical Methods in Industrial Forming (NUMIFORM 2016)
12th International Conference on Numerical Methods in Industrial Forming (NUMIFORM 2016), Jul 2016, Troyes, France. 8 pp., ⟨10.1051/matecconf/20168002007⟩

International audience; In this paper, both the bifurcation theory and the initial imperfection approach are used to predict localized necking in substrate-supported metal layers. The self-consistent scale-transition scheme is used to derive the mech

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd94e3122e26704b41db4baa88c371d2
https://doaj.org/article/577a7b14b91145a0b6ed5a38b28a8629