Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic Loads
A mathematical model to predict the stress–strain behavior of fibrous concrete compositesunder random cyclic compressive loadings is developed. The envelopeunloading strain is used as an index of load history, while the plastic strain andreloading strain are predicted as functions of the envelope un...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2008-01-01
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| Series: | Engineering and Technology Journal |
| Subjects: | |
| Online Access: | https://etj.uotechnology.edu.iq/article_26073_67fd2629cb3924f392c52c08e4ec2b2e.pdf |
| _version_ | 1827358109700456448 |
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| author | Bayar J. Al-Sulayfani Hatim T. Al-Taee |
| author_facet | Bayar J. Al-Sulayfani Hatim T. Al-Taee |
| author_sort | Bayar J. Al-Sulayfani |
| collection | DOAJ |
| description | A mathematical model to predict the stress–strain behavior of fibrous concrete compositesunder random cyclic compressive loadings is developed. The envelopeunloading strain is used as an index of load history, while the plastic strain andreloading strain are predicted as functions of the envelope unloading strain for bothfull and partial unloading and reloading. The model is independent of the expressionused for the envelope curve. Comparison with cyclic data shows good agreement.The model can be used for completely random loadings, in both the pre–peak andpost–peak ranges. It is suitable for both plain and fibrous concrete composites. Themodel has been built using MATLAB language computer program facilitating theadvanced mathematicaldifficulties of solving and differentiating complex expressions.In this paper, the monotonic stress–strain curves of Al-Sulayfani model [1] for fibrousconcrete had been adopted. |
| first_indexed | 2024-03-08T06:05:59Z |
| format | Article |
| id | doaj.art-d5316d15161d452c8f68a5700d213eab |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:05:59Z |
| publishDate | 2008-01-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-d5316d15161d452c8f68a5700d213eab2024-02-04T17:54:12ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582008-01-01261455410.30684/etj.26.1.426073Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic LoadsBayar J. Al-SulayfaniHatim T. Al-TaeeA mathematical model to predict the stress–strain behavior of fibrous concrete compositesunder random cyclic compressive loadings is developed. The envelopeunloading strain is used as an index of load history, while the plastic strain andreloading strain are predicted as functions of the envelope unloading strain for bothfull and partial unloading and reloading. The model is independent of the expressionused for the envelope curve. Comparison with cyclic data shows good agreement.The model can be used for completely random loadings, in both the pre–peak andpost–peak ranges. It is suitable for both plain and fibrous concrete composites. Themodel has been built using MATLAB language computer program facilitating theadvanced mathematicaldifficulties of solving and differentiating complex expressions.In this paper, the monotonic stress–strain curves of Al-Sulayfani model [1] for fibrousconcrete had been adopted.https://etj.uotechnology.edu.iq/article_26073_67fd2629cb3924f392c52c08e4ec2b2e.pdfcyclic loadingfibrous concretestressstrain relationship |
| spellingShingle | Bayar J. Al-Sulayfani Hatim T. Al-Taee Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic Loads Engineering and Technology Journal cyclic loading fibrous concrete stress strain relationship |
| title | Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic Loads |
| title_full | Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic Loads |
| title_fullStr | Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic Loads |
| title_full_unstemmed | Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic Loads |
| title_short | Modeling of Stress-Strain Relationship for Fibrous Concrete Under Cyclic Loads |
| title_sort | modeling of stress strain relationship for fibrous concrete under cyclic loads |
| topic | cyclic loading fibrous concrete stress strain relationship |
| url | https://etj.uotechnology.edu.iq/article_26073_67fd2629cb3924f392c52c08e4ec2b2e.pdf |
| work_keys_str_mv | AT bayarjalsulayfani modelingofstressstrainrelationshipforfibrousconcreteundercyclicloads AT hatimtaltaee modelingofstressstrainrelationshipforfibrousconcreteundercyclicloads |