A new model for upper shelf impact toughness assessment with a computationally efficient parameter identification algorithm

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A new model for upper shelf impact toughness assessment with a computationally efficient parameter identification algorithm. / Novokshanov, Denis; Döbereiner, Benedikt; Sharaf, Mohamed; Münstermann, Sebastian; Lian, Junhe.

In: Engineering Fracture Mechanics, Vol. 148, 01.11.2015, p. 281-303.

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Novokshanov, Denis ; Döbereiner, Benedikt ; Sharaf, Mohamed ; Münstermann, Sebastian ; Lian, Junhe. / A new model for upper shelf impact toughness assessment with a computationally efficient parameter identification algorithm. In: Engineering Fracture Mechanics. 2015 ; Vol. 148. pp. 281-303.

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@article{e4206426b216462bb091219f40851395,
title = "A new model for upper shelf impact toughness assessment with a computationally efficient parameter identification algorithm",
abstract = "The modified Bai-Wierzbicki model allows for precise prediction of ductile fracture failure. For the upper shelf impact toughness assessment of pipeline steels through Battelle drop weight tear test, the model was extended to include strain rate and temperature effects. Through combined experimental and numerical approaches the parameters were adjusted to express the influence of strain rate and temperature on strain hardening. The results from VUMAT implementation of the model agree well with experimental results of pipeline steel x70.To reduce the material parameter calibration effort, an UMAT implementation of the material model was used (in addition to the VUMAT implementation).",
keywords = "Application to Battelle drop weight tear test, MBW model, Strain rate and temperature dependent VUMAT, UMAT for material parameter calibration",
author = "Denis Novokshanov and Benedikt D{\"o}bereiner and Mohamed Sharaf and Sebastian M{\"u}nstermann and Junhe Lian",
year = "2015",
month = "11",
day = "1",
doi = "10.1016/j.engfracmech.2015.07.069",
language = "English",
volume = "148",
pages = "281--303",
journal = "Engineering Fracture Mechanics",
issn = "0013-7944",

}

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TY - JOUR

T1 - A new model for upper shelf impact toughness assessment with a computationally efficient parameter identification algorithm

AU - Novokshanov, Denis

AU - Döbereiner, Benedikt

AU - Sharaf, Mohamed

AU - Münstermann, Sebastian

AU - Lian, Junhe

PY - 2015/11/1

Y1 - 2015/11/1

N2 - The modified Bai-Wierzbicki model allows for precise prediction of ductile fracture failure. For the upper shelf impact toughness assessment of pipeline steels through Battelle drop weight tear test, the model was extended to include strain rate and temperature effects. Through combined experimental and numerical approaches the parameters were adjusted to express the influence of strain rate and temperature on strain hardening. The results from VUMAT implementation of the model agree well with experimental results of pipeline steel x70.To reduce the material parameter calibration effort, an UMAT implementation of the material model was used (in addition to the VUMAT implementation).

AB - The modified Bai-Wierzbicki model allows for precise prediction of ductile fracture failure. For the upper shelf impact toughness assessment of pipeline steels through Battelle drop weight tear test, the model was extended to include strain rate and temperature effects. Through combined experimental and numerical approaches the parameters were adjusted to express the influence of strain rate and temperature on strain hardening. The results from VUMAT implementation of the model agree well with experimental results of pipeline steel x70.To reduce the material parameter calibration effort, an UMAT implementation of the material model was used (in addition to the VUMAT implementation).

KW - Application to Battelle drop weight tear test

KW - MBW model

KW - Strain rate and temperature dependent VUMAT

KW - UMAT for material parameter calibration

UR - http://www.scopus.com/inward/record.url?scp=84947025557&partnerID=8YFLogxK

U2 - 10.1016/j.engfracmech.2015.07.069

DO - 10.1016/j.engfracmech.2015.07.069

M3 - Article

VL - 148

SP - 281

EP - 303

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

SN - 0013-7944

ER -

ID: 29166705