The effect of thickness on out-of-plane constraint in terms of the T-stress
The plastic zone is theoretically and numerically analyzed for various combinations of the nonsingular terms xx T to zz T ratios in connection with specimen thickness under mode I loading. The plastic zone size distribution is based on the Mises yield criterion for mode I conditions and mapped in...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2014-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_38.pdf |
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| _version_ | 1841564178017419264 |
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| author | Yu.G. Matvienko |
| author_facet | Yu.G. Matvienko |
| author_sort | Yu.G. Matvienko |
| collection | DOAJ |
| description | The plastic zone is theoretically and numerically analyzed for various combinations of the nonsingular
terms xx T to zz T ratios in connection with specimen thickness under mode I loading. The plastic zone
size distribution is based on the Mises yield criterion for mode I conditions and mapped in the specimen
thickness direction. It is shown that the plastic zone size is affected by the zz T -stress, i.e. there is strong effect
of out-of-plane constraint (thickness) on crack tip plastic zones.
In addition, to study the effect of thickness and loading mode mixity (mode I and II) of the specimen on the
singular (KI, KII) and the non-singular ( xx T , zz T ) terms along the 3D crack front, three-dimensional stress fields
are analyzed by means of finite element analysis. The strong effect of thickness and mixed mode loading
conditions on the zz T -stress is observed. At the same time, there is not the effect of thickness on the nonsingular
xx T -stress at the same loading conditions. |
| format | Article |
| id | doaj-art-83f18298858447eba3189df67e0c175b |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2014-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-83f18298858447eba3189df67e0c175b2025-01-02T23:02:24ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932014-10-0183031131610.3221/IGF-ESIS.30.38The effect of thickness on out-of-plane constraint in terms of the T-stressYu.G. Matvienko0Mechanical Engineering Research Institute of the Russian Academy of Sciences, Moscow, RussiaThe plastic zone is theoretically and numerically analyzed for various combinations of the nonsingular terms xx T to zz T ratios in connection with specimen thickness under mode I loading. The plastic zone size distribution is based on the Mises yield criterion for mode I conditions and mapped in the specimen thickness direction. It is shown that the plastic zone size is affected by the zz T -stress, i.e. there is strong effect of out-of-plane constraint (thickness) on crack tip plastic zones. In addition, to study the effect of thickness and loading mode mixity (mode I and II) of the specimen on the singular (KI, KII) and the non-singular ( xx T , zz T ) terms along the 3D crack front, three-dimensional stress fields are analyzed by means of finite element analysis. The strong effect of thickness and mixed mode loading conditions on the zz T -stress is observed. At the same time, there is not the effect of thickness on the nonsingular xx T -stress at the same loading conditions.http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_38.pdfNon-singular T-StressesThicknessMixed Mode |
| spellingShingle | Yu.G. Matvienko The effect of thickness on out-of-plane constraint in terms of the T-stress Fracture and Structural Integrity Non-singular T-Stresses Thickness Mixed Mode |
| title | The effect of thickness on out-of-plane constraint in terms of the T-stress |
| title_full | The effect of thickness on out-of-plane constraint in terms of the T-stress |
| title_fullStr | The effect of thickness on out-of-plane constraint in terms of the T-stress |
| title_full_unstemmed | The effect of thickness on out-of-plane constraint in terms of the T-stress |
| title_short | The effect of thickness on out-of-plane constraint in terms of the T-stress |
| title_sort | effect of thickness on out of plane constraint in terms of the t stress |
| topic | Non-singular T-Stresses Thickness Mixed Mode |
| url | http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_38.pdf |
| work_keys_str_mv | AT yugmatvienko theeffectofthicknessonoutofplaneconstraintintermsofthetstress AT yugmatvienko effectofthicknessonoutofplaneconstraintintermsofthetstress |