Utilization of the quadratic Hill yield function to model Ti-6Al-4V within multiplicative finite strain kinematics

Research output: Contribution to journalResearch articleContributedpeer-review

Abstract

In the contribution at hand, the quadratic Hill yield function is extended to a finite strain, multiplicative kinematic framework. Furthermore, it is expanded by a novel combination of linear and exponential hardening. The formulation is derived in a consistent manner. Subsequently, the capabilities to model Ti-6Al-4V in a realistic manner are demonstrated, considering the anisotropy in plastic material behavior, which is induced by additive manufacturing. Therefore, different tensile tests from the literature are simulated, and a validation is carried out. Finally, the significance of the anisotropy is demonstrated in a numerical example. The maximal force obtained in the simulation is shown to be significantly different, if the building direction is considered.

Details

Original languageEnglish
Article number104268
JournalInternational Journal of Engineering Science
Volume213
Publication statusPublished - 1 Aug 2025
Peer-reviewedYes

External IDs

ORCID /0000-0002-6115-6493/work/183164545
Scopus 105003119770
ORCID /0000-0001-6705-6023/work/197964321

Keywords

Keywords

  • Finite strain plasticity, Ti-6Al-4V, Additive manufacturing, Quadratic Hill yield function