Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension
Tensile strain is one of the main variables that affect fracturing in soil. This paper focuses on an experimental investigation of the deformation characteristics of remolded loess in direct and cyclic tension tests. The material behavior was approximated as elastic-plastic by ignoring the effect of...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/6038505 |
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| _version_ | 1850168971884494848 |
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| author | Shixin He Haibo Bai |
| author_facet | Shixin He Haibo Bai |
| author_sort | Shixin He |
| collection | DOAJ |
| description | Tensile strain is one of the main variables that affect fracturing in soil. This paper focuses on an experimental investigation of the deformation characteristics of remolded loess in direct and cyclic tension tests. The material behavior was approximated as elastic-plastic by ignoring the effect of time. In direct tests, the results showed that the change in slope of the stress-strain curve depended on the water content. The plastic constitutive relation was described by two methods. In cyclic loading and unloading tests, the remolded loess exhibited hysteresis (a phase lag), which led to dissipation of the mechanical energy. And no compaction limit phenomenon was found. A simple mathematical model was proposed to predict the plastic cyclic characteristics, and it was validated by the new test data. |
| format | Article |
| id | doaj-art-a04bb0fac55244b4a214fc2074846342 |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a04bb0fac55244b4a214fc20748463422025-08-20T02:20:51ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/60385056038505Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic TensionShixin He0Haibo Bai1State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221008, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221008, ChinaTensile strain is one of the main variables that affect fracturing in soil. This paper focuses on an experimental investigation of the deformation characteristics of remolded loess in direct and cyclic tension tests. The material behavior was approximated as elastic-plastic by ignoring the effect of time. In direct tests, the results showed that the change in slope of the stress-strain curve depended on the water content. The plastic constitutive relation was described by two methods. In cyclic loading and unloading tests, the remolded loess exhibited hysteresis (a phase lag), which led to dissipation of the mechanical energy. And no compaction limit phenomenon was found. A simple mathematical model was proposed to predict the plastic cyclic characteristics, and it was validated by the new test data.http://dx.doi.org/10.1155/2019/6038505 |
| spellingShingle | Shixin He Haibo Bai Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension Advances in Materials Science and Engineering |
| title | Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension |
| title_full | Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension |
| title_fullStr | Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension |
| title_full_unstemmed | Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension |
| title_short | Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension |
| title_sort | elastic plastic behavior of compacted loess under direct and cyclic tension |
| url | http://dx.doi.org/10.1155/2019/6038505 |
| work_keys_str_mv | AT shixinhe elasticplasticbehaviorofcompactedloessunderdirectandcyclictension AT haibobai elasticplasticbehaviorofcompactedloessunderdirectandcyclictension |