Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue
Very often computations on structural elements or machine components subjected to variable loading require using an advanced finite element model. This paper reports the numerical implementation of a model for multiaxial cyclic elasticplastic behaviour developed to extend the tools of the local de...
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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_20.pdf |
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| _version_ | 1841564202010935296 |
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| author | C. Madrigal V. Chaves A. Navarro |
| author_facet | C. Madrigal V. Chaves A. Navarro |
| author_sort | C. Madrigal |
| collection | DOAJ |
| description | Very often computations on structural elements or machine components subjected to variable
loading require using an advanced finite element model. This paper reports the numerical implementation of a
model for multiaxial cyclic elasticplastic behaviour developed to extend the tools of the local deformation
method under fatigue to multiaxial conditions. A basic computer code for axialtorsional loads was developed
with the commercial software Matlab and a more sophisticated code based on the finite element model for
general multiaxial loads was developed as a UMAT subroutine in Abaqus. Stress integration was introduced in
the two usual forms: implicitly and explicitly. A comparison of the results obtained with the implicit and explicit
formulations revealed that, under certain loading conditions, the outcome of the process depends on the
particular integration scheme used. |
| format | Article |
| id | doaj-art-d174183aee8041829992c5e5de0b711c |
| 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-d174183aee8041829992c5e5de0b711c2025-01-02T23:01:40ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932014-10-0183015316110.3221/IGF-ESIS.30.20 Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigueC. Madrigal 0V. Chaves 1A. Navarro 2University of Seville University of Seville University of Seville Very often computations on structural elements or machine components subjected to variable loading require using an advanced finite element model. This paper reports the numerical implementation of a model for multiaxial cyclic elasticplastic behaviour developed to extend the tools of the local deformation method under fatigue to multiaxial conditions. A basic computer code for axialtorsional loads was developed with the commercial software Matlab and a more sophisticated code based on the finite element model for general multiaxial loads was developed as a UMAT subroutine in Abaqus. Stress integration was introduced in the two usual forms: implicitly and explicitly. A comparison of the results obtained with the implicit and explicit formulations revealed that, under certain loading conditions, the outcome of the process depends on the particular integration scheme used.http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_20.pdfCyclic plasticityNumerical implementationMultiaxial fatigueUMAT user subroutine |
| spellingShingle | C. Madrigal V. Chaves A. Navarro Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue Fracture and Structural Integrity Cyclic plasticity Numerical implementation Multiaxial fatigue UMAT user subroutine |
| title | Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue |
| title_full | Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue |
| title_fullStr | Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue |
| title_full_unstemmed | Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue |
| title_short | Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue |
| title_sort | numerical implementation of a multiaxial cyclic plasticity model for the local strain method in low cycle fatigue |
| topic | Cyclic plasticity Numerical implementation Multiaxial fatigue UMAT user subroutine |
| url | http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_20.pdf |
| work_keys_str_mv | AT cmadrigal numericalimplementationofamultiaxialcyclicplasticitymodelforthelocalstrainmethodinlowcyclefatigue AT vchaves numericalimplementationofamultiaxialcyclicplasticitymodelforthelocalstrainmethodinlowcyclefatigue AT anavarro numericalimplementationofamultiaxialcyclicplasticitymodelforthelocalstrainmethodinlowcyclefatigue |