THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODEL
A constitutive law can be defined as a mathematical functional relation between physical quantities such as stress and strain and may take other factors like time, temperature and additional material properties into account. In this paper, the endochronic model is used to predict the stress-strain...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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University of Baghdad
2006-12-01
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| Series: | Journal of Engineering |
| Subjects: | |
| Online Access: | https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2826 |
| _version_ | 1797267027183796224 |
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| author | Mohammed Yousif Fattah Maysam Th. Al-Hadidi Akeel A.S. Al-Gharbawi |
| author_facet | Mohammed Yousif Fattah Maysam Th. Al-Hadidi Akeel A.S. Al-Gharbawi |
| author_sort | Mohammed Yousif Fattah |
| collection | DOAJ |
| description |
A constitutive law can be defined as a mathematical functional relation between physical quantities
such as stress and strain and may take other factors like time, temperature and additional material
properties into account. In this paper, the endochronic model is used to predict the stress-strain relations of two Iraqi clays. This model is a viscoplastic one but without introducing a yield surface. It encompasses
material behaviour such that the current stress state is a function of strain history through a time scale called “intrinsic time” which is not the absolute time but a material property. The simulation showed that the model overestimates the strains for all cases studied. This may be attributed to the material parameters which require a parametric study to determine their actual values for Iraqi clays.
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| first_indexed | 2024-03-07T15:37:17Z |
| format | Article |
| id | doaj.art-0e90ebdf896147878861801ffe4cf783 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-04-25T01:10:03Z |
| publishDate | 2006-12-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-0e90ebdf896147878861801ffe4cf7832024-03-10T09:52:06ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392006-12-01120410.31026/j.eng.2006.04.03THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODELMohammed Yousif FattahMaysam Th. Al-HadidiAkeel A.S. Al-Gharbawi A constitutive law can be defined as a mathematical functional relation between physical quantities such as stress and strain and may take other factors like time, temperature and additional material properties into account. In this paper, the endochronic model is used to predict the stress-strain relations of two Iraqi clays. This model is a viscoplastic one but without introducing a yield surface. It encompasses material behaviour such that the current stress state is a function of strain history through a time scale called “intrinsic time” which is not the absolute time but a material property. The simulation showed that the model overestimates the strains for all cases studied. This may be attributed to the material parameters which require a parametric study to determine their actual values for Iraqi clays. https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2826Clay, End chronic Model, Stress, Strain, Model Parameters |
| spellingShingle | Mohammed Yousif Fattah Maysam Th. Al-Hadidi Akeel A.S. Al-Gharbawi THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODEL Journal of Engineering Clay, End chronic Model, Stress, Strain, Model Parameters |
| title | THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODEL |
| title_full | THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODEL |
| title_fullStr | THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODEL |
| title_full_unstemmed | THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODEL |
| title_short | THEORETICAL SIMULATION OF STRESS-STRAIN RELATIONS FOR SOME IRAQICLAYS USING THE ENDOCHRONIC MODEL |
| title_sort | theoretical simulation of stress strain relations for some iraqiclays using the endochronic model |
| topic | Clay, End chronic Model, Stress, Strain, Model Parameters |
| url | https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2826 |
| work_keys_str_mv | AT mohammedyousiffattah theoreticalsimulationofstressstrainrelationsforsomeiraqiclaysusingtheendochronicmodel AT maysamthalhadidi theoreticalsimulationofstressstrainrelationsforsomeiraqiclaysusingtheendochronicmodel AT akeelasalgharbawi theoreticalsimulationofstressstrainrelationsforsomeiraqiclaysusingtheendochronicmodel |