A novel combined hardening rule for the brass cartridge case using crimping simulation and optimization

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dc.authorid0000-0002-5887-8807
dc.authorid0000-0002-9204-5868
dc.contributor.authorKacar, Ilyas
dc.contributor.authorYildirim, Sefa
dc.date.accessioned2026-01-24T12:29:09Z
dc.date.available2026-01-24T12:29:09Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractA cartridge shell case, a critical component in the defence industry, undergoes a crimping process to form one end for the insertion of a bullet. The shell case is primarily composed of brass. The crimping process is simulated using a novel plasticity model that combines a hardening rule with the Hill48 yield criterion and the associated flow rule. This study focuses primarily on the hardening rule, where a bilinear isotropic hardening (BISO) and Chaboche's nonlinear kinematic hardening (CHAB) rules are combined to develop a novel hardening model. The raw parameters of the models are calculated by regression performed on the data from monotonic tensile test and low-cycle fatigue (LCF) test. A multi-objective genetic algorithm is used to calibrate the raw parameters by the inverse analysis. The performance of the models is evaluated on the diameter of the shell considering the work-hardening. The novelty of this study lies in the acquisition of calibrated hardening rule parameters for the crimping process, which involves a multi-axial deformation pattern, using only data from uniaxial tensile and LCF tests, which are simpler to conduct. The force-moment requirements, springback, and material flow path are also calculated. The results provide a valuable insight into the combined hardening model, its parameters, and their sensitivity for the crimping process. The calibration process results in significant improvements in material properties, particularly yield strength (YS) and tangent modulus (TM). For the crimping, YS is observed to increase by 37.82% and TM is observed to decrease by 13.84% while parameters { C 1 , gamma 1 , C 2 , gamma 2 , C 3 , gamma 3 } increase approximately 9% where Cm is hardening modulus, and gamma m is decrease rate. The model achives an absolute percent relative error (APE) of 0.18%.
dc.description.sponsorshipKaplan Pirinc A.Scedil;.
dc.description.sponsorshipThis work was supported by Kaplan Pirinc A.& Scedil;. We would like to thank them for their support. We would like to express our sincere and special thanks to Mechanical Engineer M. Sc. Merve & Scedil;enlik, for her help in this study. We would like to thank Dr Mehmet Seyhan, Karadeniz Technical University for providing the opportunity to use Ansys (R) software for simulations for educational purposes. We are very grateful to the reviewers for their valuable comments, which have been utilized to improve the quality of the paper.
dc.identifier.doi10.1177/14644207241297116
dc.identifier.endpage1530
dc.identifier.issn1464-4207
dc.identifier.issn2041-3076
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85209360227
dc.identifier.scopusqualityQ1
dc.identifier.startpage1509
dc.identifier.urihttps://doi.org/10.1177/14644207241297116
dc.identifier.urihttps://hdl.handle.net/20.500.12868/5142
dc.identifier.volume239
dc.identifier.wosWOS:001355140100001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofProceedings of The Institution of Mechanical Engineers Part L-Journal of Materials-Design and Applications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260121
dc.subjectOptimization
dc.subjectchaboche kinematic hardening
dc.subjectbilinear isotropic hardening
dc.subjectbrass cartridge case
dc.subjectrate-independent plasticity
dc.subjectwork-hardening
dc.titleA novel combined hardening rule for the brass cartridge case using crimping simulation and optimization
dc.typeArticle

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