A Fractional Creep Constitutive Model for Frozen Soil in Consideration of the Strengthening and Weakening Effects
文献类型：期刊论文
| 作者 | Hou, Feng1; Li, Quanming2; Liu, Enlong1,3; Zhou, Cheng1; Liao, Mengke3; Luo, Huiwu1; Liu, Xingyan3 |
| 刊名 | ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2016 |
| 页码 | 12 |
| ISSN号 | 1687-8434 |
| DOI | 10.1155/2016/5740292 |
| 通讯作者 | Liu, Enlong(liuenlong@lzb.ac.cn) |
| 英文摘要 | The triaxial creep tests of frozen silty clay mixed with sands were performed under different pressures, and the test results demonstrated that, under the low confining pressure, when the shear stress is lower than the long-term strength, the test specimen exhibits an attenuation creep because the strengthening effect is greater than the weakening effect. When the shear stress is higher than the long-termstrength, the test specimen exhibits a nonattenuation creep due to the level of the strengthening and weakening effects change in different stages. As the confining pressure increases, the test specimens only exhibit an attenuation creep because of the enhancing strengthening effect. Both the hardening parameter and the damage variable were introduced to describe the strengthening and weakening effects, respectively, and a new creep constitutive model for frozen soil considering these effects was put forward based on the theory of elastoviscoplastic and the fractional derivative. Finally, the model parameters were analyzed and their determinationmethod was also provided to reveal the trend of parameters according to the triaxial test results. The calculated results of the constitutive model show that the proposed model can describe the whole creep process of frozen soil well. |
| 收录类别 | SCI |
| WOS关键词 | PERMAFROST REGIONS ; SALT ROCK ; EMBANKMENTS ; IMAGES |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000376896300001 |
| 出版者 | HINDAWI PUBLISHING CORP |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557252 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Liu, Enlong |
| 作者单位 | 1.Sichuan Univ, Coll Water Resources & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China 2.China Acad Safety Sci & Technol, Beijing 10012, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Feng,Li, Quanming,Liu, Enlong,et al. A Fractional Creep Constitutive Model for Frozen Soil in Consideration of the Strengthening and Weakening Effects[J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2016:12. |
| APA | Hou, Feng.,Li, Quanming.,Liu, Enlong.,Zhou, Cheng.,Liao, Mengke.,...&Liu, Xingyan.(2016).A Fractional Creep Constitutive Model for Frozen Soil in Consideration of the Strengthening and Weakening Effects.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,12. |
| MLA | Hou, Feng,et al."A Fractional Creep Constitutive Model for Frozen Soil in Consideration of the Strengthening and Weakening Effects".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING (2016):12. |
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来源：寒区旱区环境与工程研究所
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