Work-hardening behavior prediction model of arbitrary reloading process based on material crystallographic structure

T. Oya, J. Yanagimoto, K. Ito, G. Uemura, N. Mori

Research output: Contribution to journalConference articlepeer-review

Abstract

In the case of complex forming process that receives a secondary loading after the primary loading, it is necessary to appropriately represent the work-hardening state according to the forming history. Namely, it is necessary to accurately model complex forming process including reversal loading (Bauschinger effect) and orthogonal loading (cross-hardening). In this study, a composite anisotropic hardening expression based on the crystallographic structure using the finite element polycrystal model is proposed. Numerical investigations are conducted to consider the effectiveness of the proposed model. In which, an alternation rate is introduced to capture the activity of the slip systems to support the idea behind the proposed model. In addition, flow curves of the secondary loading are produced by the proposed model, which is compared with the conventional model.

Original languageEnglish
Article number012062
JournalIOP Conference Series: Materials Science and Engineering
Volume967
Issue number1
DOIs
Publication statusPublished - 2020 Nov 17
Event39th International Deep-Drawing Research Group Conference, IDDRG 2020 - Seoul, Korea, Republic of
Duration: 2020 Oct 262020 Oct 30

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Fingerprint Dive into the research topics of 'Work-hardening behavior prediction model of arbitrary reloading process based on material crystallographic structure'. Together they form a unique fingerprint.

Cite this