Material Induced Anisotropic Damage

Muhammad Sohail Niazi; H.H. Wisselink; Vincent T. Meinders; Antonius H. van den Boogaard

Material Induced Anisotropic Damage

Muhammad Sohail Niazi, H.H. Wisselink, Vincent T. Meinders, Antonius H. van den Boogaard

Faculty of Engineering Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

The anisotropy in damage can be driven by two different phenomena; anisotropic defor-mation state named Load Induced Anisotropic Damage (LIAD) and anisotropic (shape and/or distribution) second phase particles named Material Induced Anisotropic Damage (MIAD). Most anisotropic damage models are based on LIAD. This work puts emphasis on the presence of MIAD in DP600 steel. Scanning Electron Microscopic (SEM) analysis was carried out on undeformed and deformed tensile specimens. The martensite morphology showed anisotropy in size and orientation. Consequently, significant MIAD was observed in the deformed tensile specimens. A through thickness shear failure is observed in the tensile specimen, which is pulled along the rolling direction (RD), whereas a dominant ductile fracture is observed when pulled perpendicular to RD. The Modified Lemaitre’s (ML) anisotropic damage model is improved to account for MIAD in a phenomenological manner. The MIAD parameters are determined from tensile tests carried out in 0o, 45o and 90o to the RD. The formability of DP600 is lower in the RD compared to that in 90o to the RD, due to the phenomenon of MIAD.

Original language	English
Title of host publication	Advanced Failure Prediction Methods in Sheet Metal Forming, 5th Forming Technology Forum 2012
Editors	P. Hora
Place of Publication	Zurich
Publisher	Institute of Virtual Manufacturing, ETH Zurich
Pages	23-28
ISBN (Print)	978-3-906031-06-4
Publication status	Published - 5 Jun 2012
Event	5th Forming Technology Forum 2012: Advanced Failure Prediction Methods in Sheet Metal Forming - ETH Zurich, Zurich, Switzerland Duration: 5 Jun 2012 → 6 Jun 2012 Conference number: 5 http://www.ivp.ethz.ch/en/news-and-events/forming-technology-forum-2012.html

Publication series

Name
Publisher	Institute of Virtual Manufacturing, ETH Zurich

Conference

Conference	5th Forming Technology Forum 2012
Country/Territory	Switzerland
City	Zurich
Period	5/06/12 → 6/06/12
Internet address	http://www.ivp.ethz.ch/en/news-and-events/forming-technology-forum-2012.html

Keywords

METIS-286429
IR-80524
Onderzoek van algemene industriele aardMechanical engineering and technology

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@inproceedings{e654227246704953b898a976755a127f,

title = "Material Induced Anisotropic Damage",

abstract = "The anisotropy in damage can be driven by two different phenomena; anisotropic defor-mation state named Load Induced Anisotropic Damage (LIAD) and anisotropic (shape and/or distribution) second phase particles named Material Induced Anisotropic Damage (MIAD). Most anisotropic damage models are based on LIAD. This work puts emphasis on the presence of MIAD in DP600 steel. Scanning Electron Microscopic (SEM) analysis was carried out on undeformed and deformed tensile specimens. The martensite morphology showed anisotropy in size and orientation. Consequently, significant MIAD was observed in the deformed tensile specimens. A through thickness shear failure is observed in the tensile specimen, which is pulled along the rolling direction (RD), whereas a dominant ductile fracture is observed when pulled perpendicular to RD. The Modified Lemaitre{\textquoteright}s (ML) anisotropic damage model is improved to account for MIAD in a phenomenological manner. The MIAD parameters are determined from tensile tests carried out in 0o, 45o and 90o to the RD. The formability of DP600 is lower in the RD compared to that in 90o to the RD, due to the phenomenon of MIAD.",

keywords = "METIS-286429, IR-80524, Onderzoek van algemene industriele aardMechanical engineering and technology",

author = "Niazi, {Muhammad Sohail} and H.H. Wisselink and Meinders, {Vincent T.} and {van den Boogaard}, {Antonius H.}",

year = "2012",

month = jun,

day = "5",

language = "English",

isbn = "978-3-906031-06-4",

publisher = "Institute of Virtual Manufacturing, ETH Zurich",

pages = "23--28",

editor = "P. Hora",

booktitle = "Advanced Failure Prediction Methods in Sheet Metal Forming, 5th Forming Technology Forum 2012",

note = "5th Forming Technology Forum 2012 : Advanced Failure Prediction Methods in Sheet Metal Forming ; Conference date: 05-06-2012 Through 06-06-2012",

url = "http://www.ivp.ethz.ch/en/news-and-events/forming-technology-forum-2012.html",

}

Material Induced Anisotropic Damage. / Niazi, Muhammad Sohail; Wisselink, H.H.; Meinders, Vincent T. et al.
Advanced Failure Prediction Methods in Sheet Metal Forming, 5th Forming Technology Forum 2012. ed. / P. Hora. Zurich: Institute of Virtual Manufacturing, ETH Zurich, 2012. p. 23-28.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Material Induced Anisotropic Damage

AU - Niazi, Muhammad Sohail

AU - Wisselink, H.H.

AU - Meinders, Vincent T.

AU - van den Boogaard, Antonius H.

N1 - Conference code: 5

PY - 2012/6/5

Y1 - 2012/6/5

N2 - The anisotropy in damage can be driven by two different phenomena; anisotropic defor-mation state named Load Induced Anisotropic Damage (LIAD) and anisotropic (shape and/or distribution) second phase particles named Material Induced Anisotropic Damage (MIAD). Most anisotropic damage models are based on LIAD. This work puts emphasis on the presence of MIAD in DP600 steel. Scanning Electron Microscopic (SEM) analysis was carried out on undeformed and deformed tensile specimens. The martensite morphology showed anisotropy in size and orientation. Consequently, significant MIAD was observed in the deformed tensile specimens. A through thickness shear failure is observed in the tensile specimen, which is pulled along the rolling direction (RD), whereas a dominant ductile fracture is observed when pulled perpendicular to RD. The Modified Lemaitre’s (ML) anisotropic damage model is improved to account for MIAD in a phenomenological manner. The MIAD parameters are determined from tensile tests carried out in 0o, 45o and 90o to the RD. The formability of DP600 is lower in the RD compared to that in 90o to the RD, due to the phenomenon of MIAD.

AB - The anisotropy in damage can be driven by two different phenomena; anisotropic defor-mation state named Load Induced Anisotropic Damage (LIAD) and anisotropic (shape and/or distribution) second phase particles named Material Induced Anisotropic Damage (MIAD). Most anisotropic damage models are based on LIAD. This work puts emphasis on the presence of MIAD in DP600 steel. Scanning Electron Microscopic (SEM) analysis was carried out on undeformed and deformed tensile specimens. The martensite morphology showed anisotropy in size and orientation. Consequently, significant MIAD was observed in the deformed tensile specimens. A through thickness shear failure is observed in the tensile specimen, which is pulled along the rolling direction (RD), whereas a dominant ductile fracture is observed when pulled perpendicular to RD. The Modified Lemaitre’s (ML) anisotropic damage model is improved to account for MIAD in a phenomenological manner. The MIAD parameters are determined from tensile tests carried out in 0o, 45o and 90o to the RD. The formability of DP600 is lower in the RD compared to that in 90o to the RD, due to the phenomenon of MIAD.

KW - METIS-286429

KW - IR-80524

KW - Onderzoek van algemene industriele aardMechanical engineering and technology

M3 - Conference contribution

SN - 978-3-906031-06-4

SP - 23

EP - 28

BT - Advanced Failure Prediction Methods in Sheet Metal Forming, 5th Forming Technology Forum 2012

A2 - Hora, P.

PB - Institute of Virtual Manufacturing, ETH Zurich

CY - Zurich

T2 - 5th Forming Technology Forum 2012

Y2 - 5 June 2012 through 6 June 2012

ER -

Material Induced Anisotropic Damage

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