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A constitutive model of frozen soil with damage and numerical simulation for the coupled problem |
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| Authors: | ZHU ZhiWu NING JianGuo& MA Wei School of Mechanics Engineering Southwest Jiaotong University Chengdu China State Key Laboratory of Explosion Science Technology Beijing Institute of Technology Beijing Key Laboratory of Frozen Soil Engineering CAREERI CAS Lanzhou |
| Institution: | ZHU ZhiWu,NING JianGuo& MA Wei 1 School of Mechanics , Engineering,Southwest Jiaotong University,Chengdu 610031,China,2 State Key Laboratory of Explosion Science , Technology,Beijing Institute of Technology,Beijing 100081,3 Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou 730000 |
| Abstract: | Based on the microcosmic mechanics of composite materials, an elastic constitutive model for frozen soil with damage is presented. For frozen sandy soil with a range of ice contents and under a range of temperature conditions, quantitative results determined by this constitutive model agree with practically measured stress-strain curves. After numerically simulating the coupled water, temperature and stress fields of channel frozen and frozen roadbed using a self-developed finite-element routine, more accur... |
| Keywords: | frozen soil microcosmic mechanics roadbed coupling stress field |
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