Plasticity and fracture modeling of quench-hardenable boron steel with tailored properties

Tom Eller, L Greve, M.T. Andres, M Medricky, A Hatscher, Vincent T. Meinders, Antonius H. van den Boogaard

Research output: Contribution to journalArticleAcademicpeer-review

38 Citations (Scopus)

Abstract

In this article, a constitutive model for quench-hardenable boron steel is presented. Three sets of boron steel blanks are heat treated such that their as-treated microstructures are close to fully martensitic, bainitic and ferritic/pearlitic, respectively. Hardness measurements show that the resulting blanks cover the full scope of possible hardness values, from 165 HV in the ferritic/pearlitic range to 477 HV in the fully hardened state. These three main grades provide the input data for a constitutive model consisting of an extended Swift hardening law and a stress triaxiality and Lode angle dependent fracture criterion. The hardening behavior of each grade is determined using standard tensile tests at quasi-static strain rates. The strain-based fracture criterion is calibrated using four different flat fracture samples. The behavior of intermediate hardness grades is approximated by piecewise linear combination of the three calibrated constitutive models. A newly developed tapered tensile test specimen featuring a hardness transition zone in the gauge section is used to verify the model at hand. A four point bending test of a top hat section of intermediate hardness is used to verify the model for complex loading conditions.
Original languageEnglish
Pages (from-to)1211-1227
Number of pages17
JournalJournal of materials processing technology
Volume214
Issue number6
DOIs
Publication statusPublished - 3 Jan 2014

Fingerprint

Boron
Steel
Plasticity
Hardness
Constitutive models
Hardening
Bending tests
Gages
Strain rate
Microstructure

Keywords

  • METIS-302292
  • IR-89329

Cite this

@article{60355d5644b648a69f4e40017a1707de,
title = "Plasticity and fracture modeling of quench-hardenable boron steel with tailored properties",
abstract = "In this article, a constitutive model for quench-hardenable boron steel is presented. Three sets of boron steel blanks are heat treated such that their as-treated microstructures are close to fully martensitic, bainitic and ferritic/pearlitic, respectively. Hardness measurements show that the resulting blanks cover the full scope of possible hardness values, from 165 HV in the ferritic/pearlitic range to 477 HV in the fully hardened state. These three main grades provide the input data for a constitutive model consisting of an extended Swift hardening law and a stress triaxiality and Lode angle dependent fracture criterion. The hardening behavior of each grade is determined using standard tensile tests at quasi-static strain rates. The strain-based fracture criterion is calibrated using four different flat fracture samples. The behavior of intermediate hardness grades is approximated by piecewise linear combination of the three calibrated constitutive models. A newly developed tapered tensile test specimen featuring a hardness transition zone in the gauge section is used to verify the model at hand. A four point bending test of a top hat section of intermediate hardness is used to verify the model for complex loading conditions.",
keywords = "METIS-302292, IR-89329",
author = "Tom Eller and L Greve and M.T. Andres and M Medricky and A Hatscher and Meinders, {Vincent T.} and {van den Boogaard}, {Antonius H.}",
year = "2014",
month = "1",
day = "3",
doi = "10.1016/j.jmatprotec.2013.12.015",
language = "English",
volume = "214",
pages = "1211--1227",
journal = "Journal of materials processing technology",
issn = "0924-0136",
publisher = "Elsevier",
number = "6",

}

Plasticity and fracture modeling of quench-hardenable boron steel with tailored properties. / Eller, Tom; Greve, L; Andres, M.T.; Medricky, M; Hatscher, A; Meinders, Vincent T.; van den Boogaard, Antonius H.

In: Journal of materials processing technology, Vol. 214, No. 6, 03.01.2014, p. 1211-1227.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Plasticity and fracture modeling of quench-hardenable boron steel with tailored properties

AU - Eller, Tom

AU - Greve, L

AU - Andres, M.T.

AU - Medricky, M

AU - Hatscher, A

AU - Meinders, Vincent T.

AU - van den Boogaard, Antonius H.

PY - 2014/1/3

Y1 - 2014/1/3

N2 - In this article, a constitutive model for quench-hardenable boron steel is presented. Three sets of boron steel blanks are heat treated such that their as-treated microstructures are close to fully martensitic, bainitic and ferritic/pearlitic, respectively. Hardness measurements show that the resulting blanks cover the full scope of possible hardness values, from 165 HV in the ferritic/pearlitic range to 477 HV in the fully hardened state. These three main grades provide the input data for a constitutive model consisting of an extended Swift hardening law and a stress triaxiality and Lode angle dependent fracture criterion. The hardening behavior of each grade is determined using standard tensile tests at quasi-static strain rates. The strain-based fracture criterion is calibrated using four different flat fracture samples. The behavior of intermediate hardness grades is approximated by piecewise linear combination of the three calibrated constitutive models. A newly developed tapered tensile test specimen featuring a hardness transition zone in the gauge section is used to verify the model at hand. A four point bending test of a top hat section of intermediate hardness is used to verify the model for complex loading conditions.

AB - In this article, a constitutive model for quench-hardenable boron steel is presented. Three sets of boron steel blanks are heat treated such that their as-treated microstructures are close to fully martensitic, bainitic and ferritic/pearlitic, respectively. Hardness measurements show that the resulting blanks cover the full scope of possible hardness values, from 165 HV in the ferritic/pearlitic range to 477 HV in the fully hardened state. These three main grades provide the input data for a constitutive model consisting of an extended Swift hardening law and a stress triaxiality and Lode angle dependent fracture criterion. The hardening behavior of each grade is determined using standard tensile tests at quasi-static strain rates. The strain-based fracture criterion is calibrated using four different flat fracture samples. The behavior of intermediate hardness grades is approximated by piecewise linear combination of the three calibrated constitutive models. A newly developed tapered tensile test specimen featuring a hardness transition zone in the gauge section is used to verify the model at hand. A four point bending test of a top hat section of intermediate hardness is used to verify the model for complex loading conditions.

KW - METIS-302292

KW - IR-89329

U2 - 10.1016/j.jmatprotec.2013.12.015

DO - 10.1016/j.jmatprotec.2013.12.015

M3 - Article

VL - 214

SP - 1211

EP - 1227

JO - Journal of materials processing technology

JF - Journal of materials processing technology

SN - 0924-0136

IS - 6

ER -