A New Combined Isotropic, Kinematic And Cross Hardening Model For Advanced High Strength Steel Under Non-Linear Strain Loading Path

Keywords

Advanced High Strength Steel; Constitutive Modeling; Cross Hardening; Isotropic Hardening; Kinematic Hardening; Non-linear strain path

Abstract

A fully modularized framework was established to combine isotropic, kinematic, and cross hardening behaviors under non-monotonic loading conditions for advanced high strength steels. Experiments under the following types of non-proportional loading conditions were conducted, 1) uniaxial tension-compression-tension/compression-tension-compression full cycle reversal loading, 2) uniaxial reversal loading with multiple cycles, and 3) reversal shear. The calibrated new model is decoupled between isotropic and kinematic hardening behaviors, and independent on both anisotropic yield criterion and fracture model. Nine materials were calibrated using the model, include: DP590, DP600, DP780, TRIP780, DP980LY, QP980, AK Steel DP980, TBF1180, and AK Steel DP1180. Good correlation was observed between experimental and modeled results.

Publication Date

3-28-2017

Publication Title

SAE International Journal of Engines

Volume

10

Issue

2

Number of Pages

382-390

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.4271/2017-01-0367

Socpus ID

85018260771 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85018260771

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