Material Induced Anisotropic Damage in DP600

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Abstract

Plasticity induced damage development in metals is anisotropic by nature. The anisotropy in damage is driven by two different phenomena; anisotropic deformation state i.e. Load Induced Anisotropic Damage (LIAD) and anisotropic microstructure i.e. Material Induced Anisotropic Damage (MIAD). The contribution of second phase particles can be anisotropic in terms of shape as well as distribution. Most of the continuum anisotropic damage models mimic the phenomenon of LIAD only. Not much attention has been paid to MIAD. This work shows the existence of MIAD in a (pre-production) grade of dual phase steel (DP600). The aim is to see the influence of MIAD on post localization deformation behavior and final failure mode. The deformation in this material is almost isotropic up to localization but the post localization deformation and final failure mode is different when loaded in 0◦ and 90◦ to rolling direction. Tensile specimens were deformed up to final failure. A few specimens were stopped just before the final failure. Scanning electron microscopic analysis was carried out to study martensite morphology and damage in these specimens. The martensite morphology showed anisotropy in shape and orientation in the undeformed specimens. Significant MIAD was observed in the deformed tensile specimens due to the anisotropic martensite morphology. MIAD explains direction dependent post localization deformation, final failure mode and formability of this material. Lemaitre’s anisotropic damage model is modified to account for MIAD in a phenomenological manner. The MIAD parameters were determined from tensile tests carried out in 0◦ 45◦ and 90◦ to the rolling direction.
Original languageEnglish
Pages (from-to)1039-1070
JournalInternational journal of damage mechanics
Volume22
Issue number7
DOIs
Publication statusPublished - 12 Mar 2013

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Martensite
Failure modes
Anisotropy
DP600
Steel
Formability
Plasticity
Metals
Scanning
Microstructure
Electrons
Direction compound

Keywords

  • IR-84608
  • METIS-290647

Cite this

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title = "Material Induced Anisotropic Damage in DP600",
abstract = "Plasticity induced damage development in metals is anisotropic by nature. The anisotropy in damage is driven by two different phenomena; anisotropic deformation state i.e. Load Induced Anisotropic Damage (LIAD) and anisotropic microstructure i.e. Material Induced Anisotropic Damage (MIAD). The contribution of second phase particles can be anisotropic in terms of shape as well as distribution. Most of the continuum anisotropic damage models mimic the phenomenon of LIAD only. Not much attention has been paid to MIAD. This work shows the existence of MIAD in a (pre-production) grade of dual phase steel (DP600). The aim is to see the influence of MIAD on post localization deformation behavior and final failure mode. The deformation in this material is almost isotropic up to localization but the post localization deformation and final failure mode is different when loaded in 0◦ and 90◦ to rolling direction. Tensile specimens were deformed up to final failure. A few specimens were stopped just before the final failure. Scanning electron microscopic analysis was carried out to study martensite morphology and damage in these specimens. The martensite morphology showed anisotropy in shape and orientation in the undeformed specimens. Significant MIAD was observed in the deformed tensile specimens due to the anisotropic martensite morphology. MIAD explains direction dependent post localization deformation, final failure mode and formability of this material. Lemaitre’s anisotropic damage model is modified to account for MIAD in a phenomenological manner. The MIAD parameters were determined from tensile tests carried out in 0◦ 45◦ and 90◦ to the rolling direction.",
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author = "Niazi, {Muhammad Sohail} and H.H. Wisselink and Meinders, {Vincent T.} and {van den Boogaard}, {Antonius H.}",
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Material Induced Anisotropic Damage in DP600. / Niazi, Muhammad Sohail; Wisselink, H.H.; Meinders, Vincent T.; van den Boogaard, Antonius H.

In: International journal of damage mechanics, Vol. 22, No. 7, 12.03.2013, p. 1039-1070.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Material Induced Anisotropic Damage in DP600

AU - Niazi, Muhammad Sohail

AU - Wisselink, H.H.

AU - Meinders, Vincent T.

AU - van den Boogaard, Antonius H.

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N2 - Plasticity induced damage development in metals is anisotropic by nature. The anisotropy in damage is driven by two different phenomena; anisotropic deformation state i.e. Load Induced Anisotropic Damage (LIAD) and anisotropic microstructure i.e. Material Induced Anisotropic Damage (MIAD). The contribution of second phase particles can be anisotropic in terms of shape as well as distribution. Most of the continuum anisotropic damage models mimic the phenomenon of LIAD only. Not much attention has been paid to MIAD. This work shows the existence of MIAD in a (pre-production) grade of dual phase steel (DP600). The aim is to see the influence of MIAD on post localization deformation behavior and final failure mode. The deformation in this material is almost isotropic up to localization but the post localization deformation and final failure mode is different when loaded in 0◦ and 90◦ to rolling direction. Tensile specimens were deformed up to final failure. A few specimens were stopped just before the final failure. Scanning electron microscopic analysis was carried out to study martensite morphology and damage in these specimens. The martensite morphology showed anisotropy in shape and orientation in the undeformed specimens. Significant MIAD was observed in the deformed tensile specimens due to the anisotropic martensite morphology. MIAD explains direction dependent post localization deformation, final failure mode and formability of this material. Lemaitre’s anisotropic damage model is modified to account for MIAD in a phenomenological manner. The MIAD parameters were determined from tensile tests carried out in 0◦ 45◦ and 90◦ to the rolling direction.

AB - Plasticity induced damage development in metals is anisotropic by nature. The anisotropy in damage is driven by two different phenomena; anisotropic deformation state i.e. Load Induced Anisotropic Damage (LIAD) and anisotropic microstructure i.e. Material Induced Anisotropic Damage (MIAD). The contribution of second phase particles can be anisotropic in terms of shape as well as distribution. Most of the continuum anisotropic damage models mimic the phenomenon of LIAD only. Not much attention has been paid to MIAD. This work shows the existence of MIAD in a (pre-production) grade of dual phase steel (DP600). The aim is to see the influence of MIAD on post localization deformation behavior and final failure mode. The deformation in this material is almost isotropic up to localization but the post localization deformation and final failure mode is different when loaded in 0◦ and 90◦ to rolling direction. Tensile specimens were deformed up to final failure. A few specimens were stopped just before the final failure. Scanning electron microscopic analysis was carried out to study martensite morphology and damage in these specimens. The martensite morphology showed anisotropy in shape and orientation in the undeformed specimens. Significant MIAD was observed in the deformed tensile specimens due to the anisotropic martensite morphology. MIAD explains direction dependent post localization deformation, final failure mode and formability of this material. Lemaitre’s anisotropic damage model is modified to account for MIAD in a phenomenological manner. The MIAD parameters were determined from tensile tests carried out in 0◦ 45◦ and 90◦ to the rolling direction.

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