Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropy
X-100 steel is one of the most recently developed materials for production of gas transportation pipelines. This material is severely anisotropic. Smooth and notched round bars with different notch radius and flat notched specimens with different notch radius and notch depth in tension are tested to...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Islamic Azad University-Isfahan (Khorasgan) Branch
2012-09-01
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| Series: | International Journal of Advanced Design and Manufacturing Technology |
| Online Access: | https://admt.isfahan.iau.ir/article_534802_caf150d96cba27bd63fedf6b5b9049e9.pdf |
| _version_ | 1797657181906010112 |
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| author | Giuseppe Mirone Arash Keshavarz Rahmatollah Ghajar |
| author_facet | Giuseppe Mirone Arash Keshavarz Rahmatollah Ghajar |
| author_sort | Giuseppe Mirone |
| collection | DOAJ |
| description | X-100 steel is one of the most recently developed materials for production of gas transportation pipelines. This material is severely anisotropic. Smooth and notched round bars with different notch radius and flat notched specimens with different notch radius and notch depth in tension are tested to characterize the failure of this material under quasi-static loading condition.Triaxiality factor that embodies the effect of mean stress and Lode angle are the parameters that affect the failure. Lode angle is a recently introduced parameter in the fracture of ductile materials and contains the effect of third invariant of deviatoric stress tensor. The load-displacement curves and pictures taken by 2 photo camera are used to study the effects of anisotropy, triaxiality factor and Lode angle on the failure of this material. Finally an experimental failure criterion is developed to model the failure of this material. In this failure criterion, strain at fracture initiation is a function of X and TF. Models that take into account the effect of Lode angle, Triaxiality factor and anisotropy in plasticity and damage are the current state of the art in the research of ductile materials. |
| first_indexed | 2024-03-11T17:40:45Z |
| format | Article |
| id | doaj.art-58e13a283037425a912a53b3ebbd4e36 |
| institution | Directory Open Access Journal |
| issn | 2252-0406 2383-4447 |
| language | English |
| last_indexed | 2024-03-11T17:40:45Z |
| publishDate | 2012-09-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch |
| record_format | Article |
| series | International Journal of Advanced Design and Manufacturing Technology |
| spelling | doaj.art-58e13a283037425a912a53b3ebbd4e362023-10-18T09:45:41ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472012-09-0154534802Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropyGiuseppe MironeArash KeshavarzRahmatollah Ghajar0ghajar@kntu.ac.irX-100 steel is one of the most recently developed materials for production of gas transportation pipelines. This material is severely anisotropic. Smooth and notched round bars with different notch radius and flat notched specimens with different notch radius and notch depth in tension are tested to characterize the failure of this material under quasi-static loading condition.Triaxiality factor that embodies the effect of mean stress and Lode angle are the parameters that affect the failure. Lode angle is a recently introduced parameter in the fracture of ductile materials and contains the effect of third invariant of deviatoric stress tensor. The load-displacement curves and pictures taken by 2 photo camera are used to study the effects of anisotropy, triaxiality factor and Lode angle on the failure of this material. Finally an experimental failure criterion is developed to model the failure of this material. In this failure criterion, strain at fracture initiation is a function of X and TF. Models that take into account the effect of Lode angle, Triaxiality factor and anisotropy in plasticity and damage are the current state of the art in the research of ductile materials.https://admt.isfahan.iau.ir/article_534802_caf150d96cba27bd63fedf6b5b9049e9.pdf |
| spellingShingle | Giuseppe Mirone Arash Keshavarz Rahmatollah Ghajar Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropy International Journal of Advanced Design and Manufacturing Technology |
| title | Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropy |
| title_full | Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropy |
| title_fullStr | Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropy |
| title_full_unstemmed | Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropy |
| title_short | Triaxiality factor and Lode angle effects on failure of a steel considering plastic anisotropy |
| title_sort | triaxiality factor and lode angle effects on failure of a steel considering plastic anisotropy |
| url | https://admt.isfahan.iau.ir/article_534802_caf150d96cba27bd63fedf6b5b9049e9.pdf |
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