Determination of Forming Limit Diagrams Based on Ductile Damage Models and Necking Criteria

Autor: Hocine Chalal, Farid Abed-Meraim

Publikováno v: Latin American Journal of Solids and Structures, Vol 14, Iss 10, Pp 1872-1892

Abstract In this paper, forming limit diagrams (FLDs) for an aluminum alloy are predicted through numerical simulations using various localized necking criteria. A comparative study is conducted for the FLDs determined by using the Lemaitre damage ap

Externí odkaz: https://doaj.org/article/c1873d8850374983918965839f0098a0

Comparison between the Marciniak and Kuczyński imperfection approach and bifurcation theory in the prediction of localized necking for porous ductile materials

Autor: Muhammad Waqar Nasir, Hocine Chalal, Farid Abed-Meraim

Publikováno v: The International Journal of Advanced Manufacturing Technology. 119:5047-5068

To prevent the occurrence of localized necking, the concept of forming limit diagram is often used, thus playing an important role in sheet metal forming processes. The aim of the present study is to develop a numerical tool for the theoretical predi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::854940cb29c48b67dc3b58cd97dd69ba
https://doi.org/10.1007/s00170-021-08400-9

Springback Investigation of Advanced Path-Dependent Constitutive Models for Sheet Metal Forming

Autor: Yanfeng Yang, Hocine Chalal, Cyrille Baudouin, Gabriela Vincze, Tudor Balan

Publikováno v: The Minerals, Metals & Materials Series ISBN: 9783031062117

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01449917764d9f79425f7729e1d67160
https://doi.org/10.1007/978-3-031-06212-4_22

Prediction of forming limits for porous materials using void-size dependent model and bifurcation approach

Autor: Muhammad Waqar Nasir, Farid Abed-Meraim, Hocine Chalal

Publikováno v: Meccanica
Meccanica, Springer Verlag, 2020, 55 (9), pp.1829-1845. ⟨10.1007/s11012-020-01222-1⟩

International audience; The scientific literature has shown the strong effect of void size on material response. Several yield functions have been developed to incorporate the void size effects in ductile porous materials. Based on the interface stre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1a9330c7c8549bdbdff1c7f05f1455b
https://hdl.handle.net/10985/19659

Formability limit prediction of TRIP780 steel sheet using lode angle dependent Gurson-based models with Thomason coalescence criterion and bifurcation analysis

Autor: Farid Abed-Meraim, Hocine Chalal, Muhammad Waqar Nasir

Publikováno v: Proceedings of the 22nd International ESAFORM Conference on Material Forming (ESAFORM 2019)
22nd International ESAFORM Conference on Material Forming (ESAFORM 2019)
22nd International ESAFORM Conference on Material Forming (ESAFORM 2019), May 2019, Vitoria-Gasteiz, Spain. ⟨10.1063/1.5112706⟩

International audience; For biaxial stretching strain paths, which are typically encountered in sheet metal forming, the stress triaxiality ranges from 0.33 to 0.67. At this low level of triaxiality, voids change their shape from spherical to general

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::988f60f0e552c25be0648f1c1a422168
https://hal.archives-ouvertes.fr/hal-03246272